Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled Systems/How To Proceed With Troubleshooting
From 08/2009
BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: C0273,C0274,C1361: Open in
ABS Motor Relay Circuit
DESCRIPTION
The ABS motor relay supplies power to the ABS pump motor. While the ABS is activated, the ECU turns the motor relay on and operates the ABS
pump motor.
If the voltage supplied to the motor relay (+BM) is below the DTCs detection threshold due to low voltage from the battery or alternator, these
DTCs may be stored.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
When replacing the brake actuator assembly, perform zero point calibration and store system information See: Brakes and
Traction Control/Antilock Brakes / Traction Control Systems/Testing and Inspection/Programming and Relearning.
HINT
When DTC C1241 and/or C1417 is output together with DTC C0273, C0274 and/or C1361, inspect and repair the trouble areas
indicated by DTC C1241 and/or C1417 first See: C1241, or See: C1417).
PROCEDURE
1. PERFORM ACTIVE TEST USING TECHSTREAM (ABS MOTOR RELAY)
(a) Connect the Techstream to the DLC3.
No comments:
Post a Comment