DTC Code | DTC Name |
---|---|
All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate |
DESCRIPTION
When the entry operation and wireless operation of the door lock functions do not operate, a malfunction or wave interference may be occurring in either of the following: 1) the signal communication line between the door control receiver and certification ECU (smart key ECU assembly) (the line used for entry and wireless operations); or 2) the electrical key transmitter sub-assembly. If the entry lock and wireless lock operations cannot be performed, there may be electrical key transmitter sub-assembly malfunctions, wave interference or problems in the communication which is used for the entry and wireless function between the door control receiver and certification ECU (smart key ECU assembly).
CAUTION / NOTICE / HINT
The smart entry and start system (for Entry Function) uses the CAN communication system and LIN communication system. First inspect the communication systems by following How to Proceed with Troubleshooting (Click here). Troubleshoot the smart entry and start system (for Entry Function) after confirming that the communication systems are functioning properly.
When using the GTS with the vehicle power switch off, connect the GTS to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select the Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
Check that there are no electrical key transmitter sub-assemblies in the vehicle.
Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output (Click here).
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
Recognition code registration is necessary when replacing the certification ECU (smart key ECU assembly) or main body ECU (multiplex network body ECU).
Before replacing the certification ECU (smart key ECU assembly), refer to the smart entry and start system (for Entry Function) precaution (Click here).
After repair, confirm that no DTCs are output by performing the "DTC Output Confirmation Operation".
The door control receiver has a constant voltage (5 V) supply circuit connected to terminal "+5".
When replacing the door control receiver, read the transmitter IDs (tire pressure warning system) stored in the old ECU using the GTS and write them down before removal (Click here).*
It is necessary to perform initialization (See page ) after registration (Click here) of the transmitter IDs into the door control receiver if the door control receiver has been replaced.*
*: w/ Tire Pressure Warning System
PROCEDURE
INSPECT AUXILIARY BATTERY VOLTAGE
Measure the voltage of the auxiliary battery.
Standard voltage |
---|
11 to 14 V |
It may be possible to tell whether the auxiliary battery is discharged by operating the horn.
If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding.
CHECK FOR DTC
Open the driver door using the mechanical key built into the electrical key transmitter sub-assembly.
Connect the GTS and check for DTCs (Click here).
When using the GTS with the vehicle power switch off, connect the GTS to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select the Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
OK |
---|
DTC is not output. |
GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)
CHECK POWER DOOR LOCK CONTROL SYSTEM
When the door control switch on the multiplex network master switch assembly on the driver door is operated, check that the doors unlock and lock according to the switch operation (Click here).
OK |
---|
Door locks operate normally. |
GO TO POWER DOOR LOCK CONTROL SYSTEM (Click here)
CHECK KEY DIAGNOSTIC MODE
Check the following antennas in the key diagnostic mode (Click here).
Select either channel 1 or channel 2 and inspect the key diagnostic mode for each channel.
If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter cannot be detected by channel 2 due to a malfunction, such as wave interference.
Check the electrical key antenna (for driver door):
*a | 0.7 to 1 m (2.30 to 3.28 ft.) |
When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly (for driver door), check that the wireless door lock buzzer sounds.
Check the electrical key antenna (for front passenger door):
*a | 0.7 to 1 m (2.30 to 3.28 ft.) |
When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly (for front passenger door), check that the wireless door lock buzzer sounds.
Check the electrical key antenna (for rear door LH):
*a | 0.7 to 1 m (2.30 to 3.28 ft.) |
When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the rear door outside handle assembly (for rear door LH), check that the wireless door lock buzzer sounds.
Check the electrical key antenna (for rear door RH):
*a | 0.7 to 1 m (2.30 to 3.28 ft.) |
When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the rear door outside handle assembly (for rear door RH), check that the wireless door lock buzzer sounds.
Check the NO. 1 indoor electrical key antenna assembly (front floor):
*a | Inspection Point |
When the electrical key transmitter sub-assembly is at the inspection point, check that the wireless door lock buzzer sounds.
Check the NO. 1 indoor electrical key antenna assembly (rear floor):
*a | Inspection Point |
When the electrical key transmitter sub-assembly is at the inspection point, check that the wireless door lock buzzer sounds.
Check the electrical key antenna (outside luggage):
*a | 0.7 to 1 m (2.30 to 3.28 ft.) |
When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the electrical key antenna (outside luggage), check that the wireless door lock buzzer sounds.
OK |
---|
Wireless door lock buzzer sounds. |
Result | ||||||||
---|---|---|---|---|---|---|---|---|
|
CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY
Check if there are any other registered electrical key transmitter sub-assemblies.
Result | ||||||
---|---|---|---|---|---|---|
|
ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY REGISTRATION (NEW ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY)
Register a new electrical key transmitter sub-assembly.
Refer to the Service Bulletin.
CHECK ENTRY DOOR LOCK OPERATION
Using another registered electrical key transmitter sub-assembly, check if an entry lock/unlock operation can be performed twice in succession.
OK |
---|
Entry lock/unlock operate normally. |
CHECK TRANSMITTER BATTERY
Check the transmitter battery level of the electrical key transmitter sub-assembly that was checked first.
Press and hold the lock switch of the transmitter for 5 seconds and check the number of times that the transmitter LED illuminates.
Result | ||||||||
---|---|---|---|---|---|---|---|---|
|
The electrical key transmitter sub-assembly sends voltage information to the certification ECU (smart key ECU assembly) when it is being used. The certification ECU (smart key ECU assembly) displays "Yes" for the "Key Low Battery" item of the Data List when this voltage information indicates 2.2 V or less (Click here).
Even if the transmitter battery is depleted, it is still possible to start the hybrid system by holding the electrical key transmitter sub-assembly against the power switch, depressing the brake pedal and pressing the power switch.
REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY
REPLACE TRANSMITTER BATTERY (Click here)
INSPECT TRANSMITTER BATTERY (VOLTAGE)
Inspect the transmitter battery
Remove the transmitter battery from the electrical key transmitter sub-assembly that does not operate (Click here).
Attach a lead wire (0.60 mm (0.0236 in.) in diameter or less including wire sheath) with tape or equivalent to the negative terminal.
*1 | Lead Wire |
Do not wrap the lead wire around a terminal, wedge it between terminals, or solder it. The terminal may be deformed or damaged, and the transmitter battery will not be able to be installed correctly.
Carefully pull the lead wire out from the position shown in the illustration and install the previously removed transmitter battery.
Measure the voltage of the transmitter battery.
When measuring the transmitter battery voltage, bring the electrical key transmitter sub-assembly within the lock entry operating range while operating the lock sensor of a door handle to perform the measurement.
Perform the measurement when the key is at room temperature.
The key sends voltage information to the certification ECU (smart key ECU assembly) when it is transmitting. When this voltage is 2.2 V or less the Data List item "Key Low Battery" displays "Yes". (Click here)
*1 | GND |
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY
REPLACE TRANSMITTER BATTERY (Click here)
B CODE REGISTRATION
Perform registration for the B code.
In order to register the B code, confirm the smart entry and start system (for Entry Function) precaution (Click here) and refer to the Service Bulletin.
CHECK ENTRY DOOR LOCK OPERATION
Check the entry lock/unlock operation can be performed twice in succession (Click here).
OK |
---|
Entry lock/unlock operate normally. |
END (B CODE WAS NOT REGISTERED)
READ VALUE USING GTS
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Entry&Start / Data List.
Read the Data List according to the display on the GTS.
Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
---|---|---|---|
B Code Difference | B code mismatch / No or Yes | No: Communication normal Yes: Communication malfunction |
- |
B Code | B code registration status / No Regd or Regd | No Regd: B code not registered correctly Regd: B code registered correctly |
- |
Result | Proceed to |
---|---|
"No" and "No Regd" are displayed on the GTS screen | A |
"Yes" is displayed on the GTS screen | B |
"Yes" and "No Regd" are displayed on the GTS screen | C |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
CHECK WAVE ENVIRONMENT
Bring the electrical key transmitter sub-assembly near the door control receiver and perform a wireless and entry function operation check.
When the electrical key transmitter sub-assembly is brought near the door control receiver, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.
There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement.
If a tool for checking electric waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference.
OK |
---|
Wireless and entry functions operate normally. |
Result | ||||||||
---|---|---|---|---|---|---|---|---|
|
AFFECTED BY WAVE INTERFERENCE
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Measure the voltage according to the value(s) in the table below.
*a | Component with harness connected (Power Management Control ECU) |
- | - |
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Power Source Control / Data List.
Read the Data List according to the display on the GTS.
Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
---|---|---|---|
Power Supply Condition | Power supply state/IG2 ON, ST ON, All OFF, IG1 ON or ACC ON | ALL OFF: Power switch off (ACC and IG) ACC ON: Power switch on (ACC) (ACC relay on) IG1 ON: Power switch on (IG) (IG1 relay on) IG2 ON: Power switch on (IG) (IG2 relay on) ST ON: Sending hybrid system start request signal |
Since the IG1 and IG2 relays turn on at approximately the same time, IG1 ON may not be displayed (the IG1 relay turns on for a very short time). |
Measure the voltage while checking the Data List on the GTS.
Standard Voltage | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Using the GTS, measure the voltage while confirming the power source mode on the Data List.
REPLACE POWER MANAGEMENT CONTROL ECU (Click here)
READ VALUE USING GTS
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Entry&Start / Data List.
Read the Data List according to the display on the GTS.
Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
---|---|---|---|
Ignition Switch | Power switch on (IG) / ON or OFF | ON: Power switch on (IG) OFF: Power switch off |
|
CHECK RELAY CONTACT SIDE CIRCUIT
READ VALUE USING GTS
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Main Body / Data List.
Read the Data List according to the display on the GTS.
Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
---|---|---|---|
ACC SW | Power switch status / ON or OFF | ON: Power switch on (ACC) OFF: Power switch off |
- |
IG SW | Power switch status / ON or OFF | ON: Power switch to on (IG) OFF: Power switch off |
- |
TROUBLESHOOT MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - AUXILIARY BATTERY AND BODY GROUND)
Disconnect the H57 and H58 certification ECU (smart key ECU assembly) connectors.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||
---|---|---|---|---|---|---|
|
Measure the voltage according to the value(s) in the table below.
Standard Voltage | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
*a | Front view of wire harness connector (to Certification ECU (Smart Key ECU Assembly)) |
- | - |
REPAIR OR REPLACE HARNESS OR CONNECTOR
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR CONTROL RECEIVER)
Door Control Receiver with 5 Pin Connector:
Disconnect the Q2 certification ECU (smart key ECU assembly) connector.
Disconnect the P30 door control receiver connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Door Control Receiver with 12 Pin Connector:
Disconnect the Q2 certification ECU (smart key ECU assembly) connector.
Disconnect the P29 door control receiver connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
CHECK DOOR CONTROL RECEIVER
Connect the P30*1 or P29*2 door control receiver connector.
Connect the Q2 certification ECU (smart key ECU assembly) connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||
---|---|---|---|---|---|---|---|
|
*A | Door Control Receiver with 5 Pin Connector |
*B | Door Control Receiver with 12 Pin Connector |
*a | Component with harness connected (Door Control Receiver) |
*1: Door Control Receiver with 5 Pin Connector
*2: Door Control Receiver with 12 Pin Connector
Result | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
|
REPLACE DOOR CONTROL RECEIVER (for Quarter) (Click here)
REPLACE DOOR CONTROL RECEIVER (for Rear) (Click here)
REPLACE DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY (Click here)
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Door Control Receiver with 5 Pin Connector:
Connect the Q2 certification ECU (smart key ECU assembly) connector.
Connect the P30 door control receiver connector.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||||
---|---|---|---|---|---|---|---|---|
|
*a | Component with harness connected (Door Control Receiver) |
Door Control Receiver with 12 Pin Connector:
Connect the Q2 certification ECU (smart key ECU assembly) connector.
Connect the P29 door control receiver connector.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
*a | Component with harness connected (Door Control Receiver) |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
CHECK DOOR CONTROL RECEIVER
Door Control Receiver with 5 Pin Connector:
Connect the Q2 certification ECU (smart key ECU assembly) connector.
Connect the P30 door control receiver connector.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
*a | Component with harness connected (Door Control Receiver) |
Door Control Receiver with 12 Pin Connector:
Connect the Q2 certification ECU (smart key ECU assembly) connector.
Connect the P29 door control receiver connector.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
*a | Component with harness connected (Door Control Receiver) |
Result | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
|
REPLACE DOOR CONTROL RECEIVER (for Quarter) (Click here)
REPLACE DOOR CONTROL RECEIVER (for Rear) (Click here)
REPLACE DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY (Click here)
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Temporarily replace the certification ECU (smart key ECU assembly) with a new one.
Refer to the Service Bulletin.
CHECK WIRELESS DOOR LOCK CONTROL SYSTEM
Check that the wireless door lock functions operate normally (Click here).
OK |
---|
Wireless door lock functions operate normally. |
END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE)
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)
CHECK WAVE ENVIRONMENT
Bring the electrical key transmitter sub-assembly that was checked first near the door control receiver and select the failed channel (the channel in which the buzzer did not sound) to recheck the key diagnostic mode (Click here).
When the electrical key transmitter sub-assembly is brought near the door control receiver, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.
There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement.
If a tool for checking electric waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference.
OK |
---|
Wireless door lock buzzer sounds. |
AFFECTED BY WAVE INTERFERENCE
CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY
Check if there are any other registered electrical key transmitter sub-assemblies.
Result | ||||||
---|---|---|---|---|---|---|
|
ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY REGISTRATION (NEW ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY)
Register a new electrical key transmitter sub-assembly.
Refer to the Service Bulletin.
CHECK KEY DIAGNOSTIC MODE
Bring another registered electrical key transmitter sub-assembly near the door control receiver and select the failed channel (the channel in which the buzzer did not sound) to recheck the key diagnostic mode (Click here).
OK |
---|
Wireless door lock buzzer sounds. |
END (ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY THAT WAS INSPECTED FIRST WAS DEFECTIVE)
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR CONTROL RECEIVER)
Disconnect the Q2 certification ECU (smart key ECU assembly) connector.
Disconnect the P29 door control receiver connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Connect the Q2 certification ECU (smart key ECU assembly) connector.
Connect the P29 door control receiver connector.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
*a | Component with harness connected (Door Control Receiver) |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
CHECK DOOR CONTROL RECEIVER
Connect the Q2 certification ECU (smart key ECU assembly) connector.
Connect the P29 door control receiver connector.
Measure the voltage according to the value(s) in the table below.
Inspection should be performed while the electrical key antenna check in key diagnostic mode is being performed on the failed channel (the channel in which the buzzer did not sound).
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
*a | Component with harness connected (Door Control Receiver) |
*: While the electrical key antennas are being inspected in key diagnostic mode (Click here).
REPLACE DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY (Click here)
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Temporarily replace the certification ECU (smart key ECU assembly) with a new one.
Refer to the Service Bulletin.
CHECK WIRELESS DOOR LOCK CONTROL SYSTEM
Check that the wireless door lock functions operate normally (Click here).
OK |
---|
Wireless door lock functions operate normally. |
END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE)
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)