C1907

SUSPENSION CONTROL: ACTIVE STABILIZER SUSPENSION SYSTEM: C1907: Front Active Stabilizer Control ECU Data Malfunction
C1907 - Front Active Stabilizer Control ECU Data Malfunction

DESCRIPTION

The front active stabilizer control ECU and rear active stabilizer control ECU use CAN communication to perform a mutual system check. If a problem occurs in the wire harness or front active stabilizer control ECU, DTC C1907 is stored.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK WIRE HARNESS (CAN COMMUNICATION LINE)





(a) Disconnect the A58 front active stabilizer control ECU connector.

(b) Measure the resistance of the wire harness side connector.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. CHECK WIRE HARNESS (CAN COMMUNICATION LINE)





(a) Disconnect the y1 rear active stabilizer control ECU connector.

(b) Measure the resistance of the wire harness side connector.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. CHECK OPERATION OF FRONT ACTIVE STABILIZER CONTROL ECU

(a) Turn the power switch OFF.

(b) Exchange the front active stabilizer control ECU with the rear active stabilizer control ECU.

(c) Connect Techstream to the DLC3.

(d) Turn the power switch ON (IG) and press the Techstream main switch ON.

(e) Clear the DTC Active Stabilizer Suspension System.

(f) Check for DTC.

Result





A -- CHECK INTERMITTENT PROBLEMS

B -- REPLACE FRONT ACTIVE STABILIZER CONTROL ECU