Tech Tips
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptom are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | See page |
|---|---|---|
| Speedometer malfunction | Speedometer circuit | |
| Tachometer malfunction*1 | Tachometer circuit | |
| Fuel receiver gauge malfunction | Fuel receiver gauge circuit | |
| Hybrid system indicator malfunction | Hybrid system indicator circuit |
*1: w/ Tachometer
| Symptom | Suspected Area | See page |
|---|---|---|
| Master warning light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Master Warning) | ||
| Combination meter assembly | ||
| Door open warning light malfunction (Each door courtesy switch operation is normal) | Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Doors All Open) | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Brake warning light / red (malfunction) malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Brake) | ||
| Brake warning light / red (malfunction) circuit (Brake warning light remains ON) | ||
| Brake warning light / red (malfunction) circuit (Brake warning light does not come ON) | ||
| Main body ECU (Multiplex network body ECU) | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for LHD) | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for RHD) | ||
| Driver or front passenger seat belt warning light malfunction | Combination meter assembly (LED): Perform Active Test (Driver Side Seat Belt) | |
| Driver seat belt warning light circuit | ||
| Front passenger seat belt warning light circuit | ||
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| SRS warning light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Airbag) | ||
| SRS warning light circuit (SRS warning light remains ON) | ||
| SRS warning light circuit (SRS warning light does not come ON) | ||
| Combination meter assembly | ||
| Airbag sensor assembly | ||
| Engine coolant temperature warning light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Coolant Hot) | ||
| Engine coolant temperature warning light circuit | ||
| Charge warning light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Charge) | ||
| Hybrid control system | ||
| Combination meter assembly | ||
| Power management control ECU | ||
| EPS warning light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. EPS) | ||
| EPS warning light circuit | ||
| Combination meter assembly | ||
| Power steering ECU assembly | ||
| MIL (Check engine warning light) malfunction | Combination meter assembly (LED): LED check | |
| MIL circuit (for 2ZR-FXE with EGR System) | ||
| MIL circuit (for 2ZR-FXE without EGR System) | ||
| MIL circuit (for 5ZR-FXE) | ||
| Combination meter assembly | ||
| ECM (for 2ZR-FXE) | ||
| ECM (for 5ZR-FXE) | ||
| PCS warning light malfunction*1 | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Precrash) | ||
| Pre-crash safety system | ||
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| Seat belt control ECU | ||
| Slip indicator light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Slip) | ||
| Slip indicator light circuit (Slip indicator light remains ON) | ||
| Slip indicator light circuit (Slip indicator light does not come ON) | ||
| Combination meter assembly | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for LHD) | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for RHD) | ||
| ABS warning light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Lamp ABS) | ||
| ABS warning light circuit (ABS warning light remains ON) | ||
| ABS warning light circuit (ABS warning light does not come ON) | ||
| Combination meter assembly | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for LHD) | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for RHD) | ||
| Brake warning light / yellow (minor malfunction) malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Lamp ECB) | ||
| Brake warning light / yellow (minor malfunction) circuit (Brake control warning light remains on) | ||
| Brake warning light / yellow (minor malfunction) circuit (Brake control warning light does not come on) | ||
| Combination meter assembly | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for LHD) | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for RHD) | ||
| Tire pressure warning light malfunction*2 | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Tire Pressure Warning System) | ||
| Tire pressure warning system | ||
| Combination meter assembly | ||
| Tire pressure warning ECU and receiver | ||
| Fuel level warning light malfunction | Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Fuel) | |
| Fuel sender gauge assembly (for 2ZR-FXE) | ||
| Fuel sender gauge assembly (for 5ZR-FXE) | ||
| Wire harness or connector (Combination meter assembly - Fuel sender gauge assembly) | - | |
| Combination meter assembly | ||
| Rear fog indicator light malfunction (Rear fog light is normal)*3 | Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Rr FOG) | |
| Lighting system | ||
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Headlight leveling warning light malfunction*4 | Combination meter assembly (LED): LED check | |
| Lighting system (Automatic headlight beam level control) | ||
| Wire harness or connector (Combination meter assembly - Headlight leveling ECU assembly) | - | |
| Combination meter assembly | ||
| Headlight leveling ECU assembly (for LHD) | ||
| Headlight leveling ECU assembly (for RHD) | ||
| Engine oil pressure warning light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Oil Pressure) | ||
| Engine oil pressure switch assembly (for 2ZR-FXE) | ||
| Engine oil pressure switch assembly (for 5ZR-FXE) | ||
| Wire harness or connector (Combination meter assembly - Engine oil pressure switch assembly) | - | |
| Combination meter assembly | ||
| Power management control ECU | ||
| High beam indicator light malfunction (High beam head light is normal) | Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Beam) | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Ready indicator light malfunction | Combination meter assembly (LED): Perform Active Test (Indicat. Ready (HV)) | |
| Hybrid control system | ||
| Combination meter assembly | ||
| Power management control ECU | ||
| Tail indicator light malfunction (Tail light operation is normal) | Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Tail) | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Front fog indicator light malfunction (Front fog light is normal)*5 | Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Fr FOG) | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Turn indicator light malfunction | Turn signal flasher assembly | |
| Wire harness or connector (Combination meter assembly - Turn signal flasher assembly) | - | |
| Combination meter assembly | ||
| Eco mode indicator light malfunction | Combination meter assembly (LED): Perform Active Test (Indicat. ECO MODE) | |
| Hybrid control system | ||
| Combination meter assembly | ||
| Power management control ECU | ||
| Sport mode indicator light malfunction | Combination meter assembly (LED): Perform Active Test (Indicat. SPORT) | |
| Hybrid control system | ||
| Combination meter assembly | ||
| Power management control ECU | ||
| EV indicator light malfunction | Combination meter assembly (LED): Perform Active Test (EV Mode Indicator) | |
| Hybrid control system | ||
| Combination meter assembly | ||
| Power management control ECU | ||
| Cruise main indicator light malfunction*6 | Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Cruise) | |
| Cruise main indicator light circuit | ||
| Combination meter assembly | ||
| Power management control ECU | ||
| Cruise main (Constant speed control mode) indicator light malfunction*7 | Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Cruise) | |
| Cruise main indicator light circuit | ||
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| Cruise main (Vehicle-to-vehicle distance control mode) indicator light malfunction*7 | Combination meter assembly (LED): Perform Active Test Indicat. Radar Cruise) | |
| Cruise main indicator light circuit | ||
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| Clearance sonar indicator light malfunction*8 | Combination meter assembly (LED): Perform Active Test (Indicat. Clearance Sonar LCD) | |
| LEXUS parking assist-sensor system | ||
| Combination meter assembly | ||
| Clearance warning ECU assembly | ||
| EV mode indicator light malfunction | Combination meter assembly (LED): Perform Active Test (Indicat. EV Mode) | |
| Hybrid control system | ||
| Combination meter assembly | ||
| Power management control ECU | ||
| TRC OFF indicator light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (VSC TRC Indicator) | ||
| TRC OFF indicator light circuit (Traction control switch circuit) | ||
| Combination meter assembly | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for LHD) | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for RHD) | ||
| Shift selection indicator light malfunction | Combination meter assembly (LED): Perform Active Test (A/T Indicator Operation 1, A/T Indicator Operation 2) | |
| Electronic shift lever system | ||
| Combination meter assembly | ||
| Transmission control ECU assembly | ||
| Power management control ECU | ||
| Rear seat belt warning indicator light malfunction*9 | Combination meter assembly (LED): Perform Active Test (Rear Seat Belt) | |
| Combination meter assembly: Read the Data List (2nd-Row Seatbelt Buckle (R), 2nd-Row Seatbelt Buckle (L), 2nd-Row Seatbelt Buckle (C)) | ||
| Rear seat belt warning light circuit | ||
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) |
*1: w/ Pre-crash Safety System
*2: w/ Tire Pressure Warning System
*3: w/ Rear Fog Light
*4: w/ Automatic Headlight Beam Level Control
*5: w/ Front Fog Light
*6: w/ Cruise Control System
*7: w/ Dynamic Radar Cruise Control System
*8: w/ LEXUS Parking Assist-sensor System
*9: w/ Rear Seat Belt Warning
| Symptom | Suspected Area | See page |
|---|---|---|
| "Opening" display malfunction | Combination meter assembly | |
| "Odometer" display malfunction | Check customize parameters (ODO Display Time After IG OFF Setting) | |
| Combination meter assembly | ||
| "TRIP A/TRIP B meter" display malfunction | Combination meter assembly | |
| "Outside temperature" display malfunction | Air conditioning system | |
| Combination meter assembly | ||
| Air conditioning amplifier assembly | ||
| "Energy flow" display malfunction | Hybrid control system | |
| Hybrid battery system | ||
| Combination meter assembly | ||
| Power management control ECU | ||
| "Current fuel consumption" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Average fuel consumption (After refuel)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Average fuel consumption (After reset)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Drivable distance" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Elapsed time" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Average speed" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Settings" display malfunction | Combination meter assembly | |
| "Other (Blank)" display malfunction | Combination meter assembly | |
| "Maintenance mode" display malfunction | Hybrid control system | |
| Power management control ECU | ||
| Combination meter assembly | ||
| "Certification mode" display malfunction | Hybrid control system | |
| Power management control ECU | ||
| Combination meter assembly | ||
| "Adjusting front radar beam" display malfunction*1 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Brake!" display malfunction*2 | Pre-crash safety system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Each door open" display malfunction (Door courtesy switch or hood courtesy switch is normal) | Combination meter assembly | |
| Main body ECU (Multiplex network body ECU) | ||
| "Clearance sonar detection (image display)" display malfunction*3 | LEXUS parking assist-sensor system | |
| Combination meter assembly | ||
| Clearance warning ECU assembly | ||
| "Check sonar" display malfunction*3 | LEXUS parking assist-sensor system | |
| Combination meter assembly | ||
| Clearance warning ECU assembly | ||
| "Clean sonar" display malfunction*3 | LEXUS parking assist-sensor system | |
| Combination meter assembly | ||
| Clearance warning ECU assembly | ||
| "Auto power off to conserve battery" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Dynamic radar cruise control warning reminder indicator (image display)" display malfunction*1 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Shift to P position" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Shift to P position and push power switch to turn power off" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Shift to P position when parked" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "N position" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Depress the brake pedal when vehicle is at a standstill" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Traction battery preservation mode restart after shifting the P position" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Low traction battery charge when not in N position" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "P lock malfunction when parking, park in flat place and apply parking brake securely" display malfunction | Electronic shift lever system | |
| Combination meter assembly | ||
| Transmission control ECU assembly | ||
| "Check hybrid system" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Release parking brake" display malfunction (Brake warning light / red (malfunction) is normal) | Main body ECU (Multiplex network body ECU) | |
| Combination meter assembly | ||
| "Key not detected" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Speed limit exceeded" display malfunction (Speedometer is normal)*4 | Combination meter assembly | |
| "Switched to N. To engage P, stop car then press P switch." display malfunction | Electronic shift lever system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Clean radar sensor" display malfunction*2 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Seat belt control ECU | ||
| "Cruise control not available" display malfunction*1 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Check cruise control system" display malfunction*1 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Check cruise control system" display malfunction*5 | Cruise control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Check PCS system" display malfunction*2 | Pre-crash safety system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| Seat belt control ECU | ||
| "Check headlight system" display malfunction*6 | Lighting system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Turn power off" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Key detected in vehicle" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Turn lights off" display malfunction*7 | Lighting system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Moon roof opened" display malfunction*8 | Sliding roof system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Depress brake pedal, touch power switch with key" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Depress brake and push power switch to start" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Shift to P position to start" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Key battery low" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Hybrid system overheat" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Low washer fluid" display malfunction | Combination meter assembly: Read the Data List (Washer Switch) | |
| Washer fluid level warning switch | ||
| Wire harness or connector (Combination meter assembly - Washer fluid level warning switch) | - | |
| Combination meter assembly | ||
| "PCS temporarily not available" display malfunction*2 | Pre-crash safety system | |
| Combination meter assembly | ||
| Seat belt control ECU | ||
| "EV mode currently not available" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode not available warming up" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode not available low battery" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode not available excessive speed" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode not available excessive acceleration" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode deactivated" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode deactivated low battery" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode deactivated excessive speed" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode deactivated excessive acceleration" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Theft sensor off" display malfunction*9 | Theft deterrent system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Theft sensor on" display malfunction*9 | Theft deterrent system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) |
*1: w/ Dynamic Radar Cruise Control System
*2: w/ Pre-crash Safety System
*3: w/ LEXUS Parking Assist-sensor System
*4: w/ Speed Warning
*5: w/ Cruise Control System
*6: w/ LED Headlight
*7: w/ Light Reminder
*8: w/ Sliding Roof System
*9: w/ Theft Deterrent System
| Symptom | Suspected Area | See page |
|---|---|---|
| "Opening" display malfunction | Combination meter assembly | |
| "Odometer" display malfunction | Combination meter assembly | |
| "TRIP A/TRIP B meter" display malfunction | Check customize parameters (ODO Display Time After IG OFF Setting) | |
| Combination meter assembly | ||
| "Current fuel consumption (Bar type)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Average fuel consumption (After reset)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Average fuel consumption (After start)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Average fuel consumption (After refuel)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Average speed (After reset)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Average speed (After start)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Elapsed time (After reset)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Elapsed time (After start)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Drivable distance" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| Other (Blank) | Combination meter assembly | |
| "Energy flow" display malfunction | Hybrid control system | |
| Hybrid battery system | ||
| Combination meter assembly | ||
| Power management control ECU | ||
| "Drive information tab" display malfunction | Combination meter assembly | |
| "Navigation tab" display malfunction | Navigation system | |
| Combination meter assembly | ||
| Radio receiver assembly | ||
| "Audio tab" display malfunction | Navigation system | |
| Combination meter assembly | ||
| Radio receiver assembly | ||
| "Message tab" display malfunction | Combination meter assembly | |
| "Setting tab" display malfunction | Combination meter assembly | |
| "Outside temperature" display malfunction | Air conditioning system | |
| Combination meter assembly | ||
| Air conditioning amplifier assembly | ||
| EV mode indicator light malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Phone (Received Call)" display malfunction | Navigation system | |
| Combination meter assembly | ||
| Radio receiver assembly | ||
| "Turn-by-turn Navigation" display malfunction | Navigation system | |
| Combination meter assembly | ||
| Radio receiver assembly | ||
| "Maintenance mode" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Certification mode" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Adjusting front radar beam" display malfunction*2 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Brake!" display malfunction*1 | Pre-crash safety system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Each door open" display malfunction (Door courtesy switch or hood courtesy is normal) | Combination meter assembly | |
| Main body ECU (Multiplex network body ECU) | ||
| "Dynamic radar cruise control warning reminder indicator (image display)" display malfunction*1 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Low 12-volt battery see owner's manual" display malfunction | Hybrid battery system | |
| Hybrid control system | ||
| Combination meter assembly | ||
| Power management control ECU | ||
| "Clearance sonar detection (image display)" display malfunction*3 | LEXUS parking assist-sensor system | |
| Combination meter assembly | ||
| Clearance warning ECU assembly | ||
| "Check park sonar system" display malfunction*3 | LEXUS parking assist-sensor system | |
| Combination meter assembly | ||
| Clearance warning ECU assembly | ||
| "Clean park sonar" display malfunction*3 | LEXUS parking assist-sensor system | |
| Combination meter assembly | ||
| Clearance warning ECU assembly | ||
| "Auto power off to conserve battery" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Shift to P position" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Shift to P position and push power switch to turn power off" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "N position" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Depress the brake pedal when vehicle is at a standstill" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Traction battery preservation mode restart after shifting to P position" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Traction battery low charges when not in N position" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Check hybrid system stop the vehicle in a safe place immediately" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Release parking brake" display malfunction (Brake warning light is normal) | Main body ECU (Multiplex network body ECU) | |
| Combination meter assembly | ||
| "Key not detected" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Speed limit exceeded" display malfunction (Speedometer is normal)*4 | Combination meter assembly | |
| "Switched to N. To engage P, stop car then press P switch." display malfunction | Electronic shift lever system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Clean radar sensor" display malfunction*2 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Cruise control not available" display malfunction*2 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Check cruise control system" display malfunction*5 | Cruise control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Check cruise control system" display malfunction*2 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Check PCS system" display malfunction*1 | Pre-crash safety system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Check headlight system" display malfunction*8 | Lighting system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Turn power off" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Key detected in vehicle" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Turn light off" display malfunction*6 | Lighting system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Moon roof opened" display malfunction*7 | Sliding roof system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Depress brake pedal, touch power switch with key" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Depress brake pedal and push power switch to start" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Shift to P position to start" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Key battery low" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Hybrid system protection mode stop the vehicle in a safe place immediately" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Washer fluid low" display malfunction | Combination meter assembly: Read the Data List (Washer Switch) | |
| Washer fluid level warning switch | ||
| Wire harness or connector (Combination meter assembly - Washer fluid level warning switch) | - | |
| Combination meter assembly | ||
| "PCS temporarily not available" display malfunction*1 | Pre-crash safety system | |
| Combination meter assembly | ||
| Seat belt control ECU | ||
| "EV mode currently not available" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode not available warming up" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode not available low battery" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode not available excessive speed" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode not available excessive acceleration" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode deactivated" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode deactivated low battery" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode deactivated excessive speed" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "EV mode deactivated excessive acceleration" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| "Theft sensor off" display malfunction*9 | Theft deterrent system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Theft sensor on" display malfunction*9 | Theft deterrent system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) |
*1: w/ Pre-crash Safety System
*2: w/ Dynamic Radar Cruise Control System
*3: w/ LEXUS Parking Assist-sensor System
*4: w/ Speed Warning
*5: w/ Cruise Control System
*6: w/ Light Reminder
*7: w/ Sliding Roof System
*8: for LED Headlight
*9: w/ Theft Deterrent System
| Symptom | Suspected Area | See page |
|---|---|---|
| All buzzers do not operate normally | Combination meter assembly | |
| Ready buzzer malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| Reverse buzzer malfunction (Shift selection indicator light is normal) | Combination meter assembly | |
| Seat belt warning (for driver side) buzzer malfunction (Seat belt warning light operation is normal) | Check customize parameters (Driver Side Seatbelt Warning Buzzer) | |
| Combination meter assembly | ||
| Seat belt warning (for front passenger side) buzzer malfunction (Seat belt warning light operation is normal) | Check customize parameters (Front Passenger Side Seatbelt Warning Buzzer) | |
| Combination meter assembly | ||
| Seat belt warning (for rear seats) buzzer malfunction (Rear seat belt indicator light operation is normal)*5 | Check customize parameters (Rear Seatbelt Warning Buzzer) | |
| Combination meter assembly | ||
| Brake control system power low warning buzzer malfunction | Electronically controlled brake system | |
| Combination meter assembly | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for LHD) | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for RHD) | ||
| EPS warning buzzer malfunction | Power steering system | |
| Combination meter assembly | ||
| Power steering ECU assembly | ||
| Entry and start system warning buzzer (Continual) malfunction | Entry and start system (for Entry function) | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Entry and start system warning buzzer (Intermittent) malfunction | Entry and start system (for Entry function) | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Hill-start assist control buzzer (Reset) malfunction | Electronically controlled brake system | |
| Combination meter assembly | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for LHD) | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for RHD) | ||
| Hill-start assist control buzzer (Set) malfunction | Electronically controlled brake system | |
| Combination meter assembly | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for LHD) | ||
| Brake booster with master cylinder assembly (Skid control ECU) (for RHD) | ||
| Entry and start system warning buzzer (Single) malfunction | Entry and start system (for Entry function) | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Depress the accelerator pedal with shift selection N buzzer malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| Accelerator hold warning buzzer malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| HV battery low voltage buzzer malfunction | Hybrid battery system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| HV battery charge request buzzer malfunction | Hybrid battery system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| Dynamic radar cruise control low speed cancel buzzer malfunction*1 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| Immobiliser key identification completion buzzer malfunction | Entry and start system (for Entry function) | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Shift selection P request buzzer malfunction | Hybrid battery system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| Speed limit exceeded warning buzzer malfunction (Speedometer is normal)*2 | Combination meter assembly | |
| Driving with parking brake unreleased warning buzzer malfunction (Speedometer and brake warning light / red (malfunction) are normal) | Combination meter assembly | |
| Driving with any door opened warning buzzer malfunction (Speedometer and door open warning light are normal) | Combination meter assembly | |
| Shift operation reject buzzer malfunction | Electronic shift lever system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| EV reject buzzer malfunction | Hybrid battery system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| Light reminder buzzer malfunction*3 | Lighting system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Sliding roof warning buzzer malfunction*4 | Sliding roof system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Multi-information display warning buzzer malfunction | Combination meter assembly |
*1: w/ Dynamic Radar Cruise Control System
*2: w/ Speed Warning
*3: w/ Light Reminder
*4: w/ Sliding Roof System
*5: w/ Rear Seat Belt Warning
| Symptom | Suspected Area | See page |
|---|---|---|
| Other systems that use the speed signal do not operate normally | Speed signal circuit | |
| Operating ODO/TRIP switch knob does not change odometer/TRIP meter display | Combination meter assembly | |
| Operating steering pad switch does not change multi-information display | Combination meter assembly: Read the Data List (Multi Display Select Switch)*1 | |
| Combination meter assembly: Read the Data List (Multi Switch (UP), Multi Switch (Down), Multi Switch (Menu), Multi Switch (ENTER), Multi Switch (Right) or Multi Switch (Left))*2 | ||
| Steering pad switch assembly | ||
| Spiral cable with sensor sub-assembly | ||
| Wire harness or connector (Combination meter assembly - Spiral cable with sensor sub-assembly) | - | |
| Combination meter assembly | ||
| Operating light control rheostat does not change light brightness | Combination meter assembly: Read the Data List (Rheostat value) | |
| Light control rheostat circuit | ||
| Combination meter assembly | ||
| Meter illumination is always dark | Illumination circuit (Meter illumination is always dark) | |
| Meter illumination does not dim at night | Illumination circuit (Meter illumination does not dim at night) | |
| Meter ambient illumination (ECO light) malfunction*4 | Combination meter assembly (LED): Perform Active Test (Indicat. ECONO) | |
| Hybrid control system | ||
| Combination meter assembly | ||
| Power management control ECU | ||
| Meter ambient illumination (SPORT light) malfunction*4 | Hybrid control system | |
| Combination meter assembly | ||
| Power management control ECU | ||
| Warning notification display malfunction*3 | G-BOOK system | |
| Combination meter assembly | ||
| DCM (Telematics transceiver) |
*1: for Multi-information Display (Monochrome Type)
*2: for Multi-information Display (Color Type)
*3: w/ Telematics Transceiver
*4: w/ Meter Ambient Illumination