C1296

UF1AE TRANSFER: FOUR WHEEL DRIVE CONTROL SYSTEM: C1296/96: ABS Malfunction

DTC C1296/96 - ABS Malfunction

DESCRIPTION

If a malfunction in the speed sensor signal circuit occurs, the 4WD control ECU will output this DTC. When slip is detected based on signals sent from the 4 wheel speed sensors, the 4WD control ECU controls torque distribution between front and rear wheels according to the amount of slip.






WIRING DIAGRAM





INSPECTION PROCEDURE
HINT:
Check the condition of each related circuit connector before troubleshooting Electronic Circuit Inspection Procedure.

PROCEDURE

1. CHECK DTC
(a) Clear the DTC .
(b) Start the engine.
(c) Drive the vehicle, accelerating to a speed of 12 mph (20 km/h) or more and check if the speed sensor DTC (brake control system DTC) is output Reading and Clearing Diagnostic Trouble Codes.
Result:





HINT:
When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding sensor.

C -- REPAIR CIRCUIT INDICATOR BY OUTPUT DTCS (BRAKE CONTROL SYSTEM)
B -- REPAIR CIRCUIT INDICATOR BY OUTPUT DTCS (CAN COMMUNICATION SYSTEM)
A -- Continue to next step.
2. CHECK OPERATION OF 4WD CONTROL ECU
(a) Replace the 4WD control ECU with a normally functioning or new one.
(b) Reconfirm DTC.
OK:
DTC is output.
NG -- GO TO BRAKE CONTROL SYSTEM
OK -- REPLACE 4WD CONTROL ECU