| DTC Code | DTC Name |
|---|---|
| Check CAN Bus Line for Short to GND (RHD Models) |
DESCRIPTION
There may be a short circuit between the CAN bus lines and GND when the resistance between terminals 6 (CANH) and 4 (CG) or terminals 14 (CANL) and 4 (CG) of the DLC3 is below 200 Ω.
| Symptom | Trouble Area |
|---|---|
| The resistance between terminals 6 (CANH) and 4 (CG) or terminals 14 (CANL) and 4 (CG) of the DLC3 is below 200 Ω. |
|
*1: w/ Entry and Start System
*2: w/ VSC
*3: for Display Audio Type
*4: w/ Air Conditioning System or PTC Heater
*5: w/ Stop and Start System
*6: for 1ND-TV with Cruise Control System
CAUTION / NOTICE / HINT
Turn the ignition switch off before measuring the resistances of the CAN main wire and the CAN branch wire.
After the ignition switch is turned off, check that the key reminder warning system and light reminder warning system are not in operation.
Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors. If doors need to be opened in order to check connectors, open the doors and leave them open.
Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.
PROCEDURE
CHECK SHORT TO GND IN CAN BUS WIRE (DLC3 BRANCH WIRE)
Turn the ignition switch off.
Disconnect the F83 No. 2 junction connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Front view of DLC3 |
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (DLC3 BRANCH WIRE)
CONNECT CONNECTOR
Reconnect the F83 No. 2 junction connector.
CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR)
Disconnect the A61 and F82 No. 1 junction connectors.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Front view of DLC3 |
CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - ECM)
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 1 Junction Connector) |
| *b | Front view of DLC3 |
CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 1 Junction Connector) |
| *b | Front view of DLC3 |
CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - ENGINE STOP AND START ECU)
For vehicles without stop and start system, go to step 7.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 1 Junction Connector) |
| *b | Front view of DLC3 |
CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 1 Junction Connector) |
| *b | Front view of DLC3 |
REPLACE NO. 1 JUNCTION CONNECTOR
CHECK SHORT TO GND IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)
Disconnect the F83 No. 2 junction connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)
CONNECT CONNECTOR
Reconnect the A61 and F82 No. 1 junction connectors.
CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)
For vehicles without Air Conditioning System or PTC heater, go to step 12.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY))
For vehicles without VSC, go to step 13.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - RADIO RECEIVER ASSEMBLY)
For vehicles without display audio type, go to step 15.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
For vehicles without entry and start system, go to step 16.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - DRIVING SUPPORT ECU)
Except 1ND-TV with cruise control system, go to step 17.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
CHECK SHORT TO GND IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - CENTER AIRBAG SENSOR ASSEMBLY)
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
REPLACE NO. 2 JUNCTION CONNECTOR
CHECK SHORT TO GND IN CAN BUS WIRE (ECM MAIN WIRE)
Disconnect the A58*1, A71*2 or A59*3 ECM connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 1 Junction Connector) |
| *b | Front view of DLC3 |
| Result | Proceed to |
|---|---|
| NG | A |
| OK (for 1NR-FE) | B |
| OK (for 1KR-FE) | C |
| OK (for 1ND-TV) | C |
REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (ECM MAIN WIRE)
REPLACE ECM (Click here)
REPLACE ECM (Click here)
REPLACE ECM (Click here)
CHECK SHORT TO GND IN CAN BUS WIRE (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) BRANCH WIRE)
Disconnect the A54*1 or A78*2 skid control ECU (brake actuator assembly) connector.
*1: for TMC Made
*2: for TMMF Made
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 1 Junction Connector) |
| *b | Front view of DLC3 |
| Result | Proceed to |
|---|---|
| NG | A |
| OK (for TMC Made) | B |
| OK (for TMMF Made) | C |
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) BRANCH WIRE)
REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) (Click here)
REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) (Click here)
CHECK SHORT TO GND IN CAN BUS WIRE (ENGINE STOP AND START ECU BRANCH WIRE)
Disconnect the F75 engine stop and start ECU connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 1 Junction Connector) |
| *b | Front view of DLC3 |
REPLACE ENGINE STOP AND START ECU
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (ENGINE STOP AND START ECU BRANCH WIRE)
CHECK SHORT TO GND IN CAN BUS WIRE (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) BRANCH WIRE)
Disconnect the F76 main body ECU (multiplex network body ECU) connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 1 Junction Connector) |
| *b | Front view of DLC3 |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) BRANCH WIRE)
CHECK SHORT TO GND IN CAN BUS WIRE (COMBINATION METER ASSEMBLY MAIN WIRE)
Disconnect the F1 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
REPLACE COMBINATION METER ASSEMBLY (Click here)
REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (COMBINATION METER ASSEMBLY MAIN WIRE)
CHECK SHORT TO GND IN CAN BUS WIRE (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH WIRE)
Disconnect the F42*1 or F41*2 air conditioning amplifier assembly connector.
*1 : w/ Automatic Air Conditioning System
*2 : w/ Manual Air Conditioning System or PTC Heater
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (Click here)
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY BRANCH WIRE)
CHECK SHORT TO GND IN CAN BUS WIRE (STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) BRANCH WIRE)
Disconnect the F30 steering angle sensor (spiral cable sub-assembly) connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
REPLACE STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) (Click here)
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) BRANCH WIRE)
CHECK SHORT TO GND IN CAN BUS WIRE (POWER STEERING ECU ASSEMBLY)
Disconnect the F6 power steering ECU assembly connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
REPLACE POWER STEERING ECU ASSEMBLY (Click here)
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (POWER STEERING ECU ASSEMBLY BRANCH WIRE)
CHECK SHORT TO GND IN CAN BUS WIRE (RADIO RECEIVER ASSEMBLY BRANCH WIRE)
Disconnect the F115 radio receiver assembly connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
REPLACE RADIO RECEIVER ASSEMBLY (Click here)
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (RADIO RECEIVER ASSEMBLY BRANCH WIRE)
CHECK SHORT TO GND IN CAN BUS WIRE (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) BRANCH WIRE)
Disconnect the F63 certification ECU (smart key ECU assembly) connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) BRANCH WIRE)
CHECK SHORT TO GND IN CAN BUS WIRE (DRIVING SUPPORT ECU BRANCH WIRE)
Disconnect the F121 driving support ECU connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
REPLACE DRIVING SUPPORT ECU (Click here)
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (DRIVING SUPPORT ECU BRANCH WIRE)
CHECK SHORT TO GND IN CAN BUS WIRE (CENTER AIRBAG SENSOR ASSEMBLY BRANCH WIRE)
Disconnect the F16 center airbag sensor assembly connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| *a | Rear view of wire harness connector (to No. 2 Junction Connector) |
| *b | Front view of DLC3 |
REPLACE CENTER AIRBAG SENSOR ASSEMBLY (Click here)
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CENTER AIRBAG SENSOR ASSEMBLY BRANCH WIRE)