Clearance Warning ECU Communication Stop Mode [04/2018 -]: Procedure
- CHECK FOR OPEN IN CAN BUS LINES (CLEARANCE WARNING ECU ASSEMBLY BRANCH LINE)
- Disconnect the cable from the negative (-) battery terminal.
- Disconnect the K34 clearance warning ECU assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition K34-17 (R1) - K34-18 (R2) Cable disconnected from negative (-) battery terminal 54 to 69 Ω *a Front view of wire harness connector
(to Clearance Warning ECU Assembly)Result
Result OK NG
Result:
NG
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (CLEARANCE WARNING ECU 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.
Standard Resistance
Tester Connection Condition Specified Condition K34-30 (E) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω *a Front view of wire harness connector
(to Clearance Warning ECU Assembly) - 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 K34-1 (IG) - Body ground Engine switch on (IG) 11 to 14 V Result
Result OK NG
Result:
OK
REPLACE CLEARANCE WARNING ECU ASSEMBLY. Refer to REMOVAL [04/2018 - 08/2021] , or refer to REMOVAL [08/2021 -]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)
- Measure the resistance according to the value(s) in the table below.