Power Steering ECU Communication Stop Mode [03/2017 - ]: Procedure
- CHECK FOR OPEN IN CAN BUS LINES (RACK AND PINION POWER STEERING GEAR ASSEMBLY BRANCH LINE)
- Disconnect the cable from the negative (-) battery terminal.
- Disconnect the C71 rack and pinion power steering gear assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition C71-10 (CANH) - C71-11 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω *a Front view of wire harness connector
(to Rack and Pinion Power Steering Gear Assembly)Result
Result OK NG
Result:
NG
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (RACK AND PINION POWER STEERING GEAR ASSEMBLY)
Result:
OK
See step 2
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.
*a Front view of wire harness connector
(to Rack and Pinion Power Steering Gear Assembly)Standard Resistance
Tester Connection Condition Specified Condition C71-7 (PGND) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω - Reconnect the cable to the negative (-) battery terminal.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition C71-4 (IG) - Body ground Ignition switch ON 11 to 14 V Result
Result OK NG
Result:
OK
REPLACE RACK AND PINION POWER STEERING GEAR ASSEMBLY. Refer to REMOVAL [03/2017 - 06/2017] , or refer to REMOVAL [06/2017 - 08/2018] , or refer to REMOVAL [08/2018 - 09/2019] , or refer to REMOVAL [09/2019 - 03/2020] , or refer to REMOVAL [03/2020 - 10/2020] , or refer to REMOVAL [10/2020 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.