DTC C1907: Front Active Stabilizer Control ECU Data Malfunction: Procedure
- CHECK HARNESS AND CONNECTOR (CAN COMMUNICATION LINE)
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- Disconnect the A49 front active stabilizer control ECU connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
Tester Connection Switch Condition Specified Condition A49-1 (LCN+) - A49-8 (LCN-) Engine switch off 54 to 69 Ω A49-2 (CANH) - A49-3 (CANL) Engine switch off 54 to 69 Ω
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (CAN COMMUNICATION LINE)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the e1 rear active stabilizer control ECU connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
Tester Connection Switch Condition Specified Condition e1-1 (LCN+) - e1-8 (LCN-) Engine switch off 54 to 69 Ω e1-2 (CANH) - e1-3 (CANL) Engine switch off 54 to 69 Ω
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step
- CHECK OPERATION OF FRONT ACTIVE STABILIZER CONTROL ECU
- Turn the engine switch off.
- Exchange the front active stabilizer control ECU with the rear active stabilizer control ECU.
- Connect Techstream to the DLC3.
- Turn the engine switch on (IG) and press the Techstream main switch ON.
- Clear the DTC. Refer to DTC CHECK / CLEAR .
- Check for DTC.RESULT
Result Proceed to DTC is not output A DTC C192F is output B
A → CHECK INTERMITTENT PROBLEMS
B → See step 4
- REPLACE FRONT ACTIVE STABILIZER CONTROL ECU. Refer to REMOVAL