Power Steering ECU Communication Stop Mode [10/2015 - ]: Procedure
- CHECK FOR OPEN IN CAN BUS LINES (POWER STEERING ECU ASSEMBLY BRANCH LINE)
- Disconnect the cable from the negative (-) battery terminal.
- Disconnect the c2 power steering ECU assembly connector.
*a Front view of wire harness connector
(to Power Steering ECU Assembly) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition c2-7 (CANH) - c2-8 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
Result:
NG
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (POWER STEERING ECU ASSEMBLY)
Result:
OK
See step 2
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
- Disconnect the c1 power steering ECU assembly connector.
- Measure the resistance according to the value(s) in the table below.
*a Front view of wire harness connector
(to Power Steering ECU Assembly)Standard Resistance
Tester Connection Condition Specified Condition c1-2 (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.
*a Front view of wire harness connector
(to Power Steering ECU Assembly)Standard Voltage
Tester Connection Condition Specified Condition c2-1 (IG) - Body ground Engine switch on (IG) 11 to 14 V
Result:
OK
REPLACE POWER STEERING ECU ASSEMBLY. Refer to REMOVAL [10/2014 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)