Rear Steering ECU Communication Stop Mode [03/2017 - 05/2023]: Procedure
- CHECK FOR OPEN IN CAN BUS WIRE (REAR STEERING CONTROL ECU BRANCH WIRE)
- Disconnect the cable from the negative (-) battery terminal.
- Disconnect the rear steering control ECU connector.
*a Front view of wire harness connector
(to Rear Steering Control ECU) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition b3-2 (CANH) - b3-3 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω Result
Result OK NG
Result:
NG
REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR
Result:
OK
See step 2
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition b3-5 (GNDY) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω *a Front view of wire harness connector
(to Rear Steering Control ECU) - Reconnect the cable to the negative (-) battery terminal.NOTE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
Refer to INITIALIZATION [03/2017 - 04/2020] , or refer to INITIALIZATION [04/2020 - 05/2023]
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition b3-4 (PIG) - Body ground Always 11 to 14 V b3-9 (IGY) - Body ground Engine switch on (IG) 11 to 14 V Engine switch off Below 1 V Result
Result OK NG
Result:
OK
REPLACE REAR STEERING CONTROL ECU. Refer to REMOVAL [03/2017 - 05/2023]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- Measure the resistance according to the value(s) in the table below.