C1296

DIFFERENTIAL: ACTIVE TORQUE CONTROL 4WD SYSTEM: C1296/96: ABS Malfunction
C1296/96 - ABS Malfunction

DESCRIPTION

If a malfunction in the speed sensor signal circuit yaw rate sensor circuit occurs, the 4WD control ECU will output this DTC.





INSPECTION PROCEDURE

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

PROCEDURE

1. CHECK FOR DTC

(a) Clear the DTC .

(b) Turn the ignition switch off.

(c) Turn the ignition switch ON again and check that CAN communication system DTC(s) is not output.

(d) Drive the vehicle, accelerate to a speed of 20 km/h (12 mph) or more, and check if the speed sensor DTC (brake control system DTC) is output Vehicle Stability Control System.

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 CODE (BRAKE CONTROL SYSTEM)

B -- REPAIR CIRCUIT INDICATOR BY OUTPUT CODE (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.

NOTICE:
When performing inspections after replacing the 4WD control ECU with a normal one from another vehicle, be sure to perform zero point calibration of the yaw rate sensor by connecting terminals TS and CG of the DLC3 .

HINT
Calibrate the 4WD control ECU by performing calibration of the vehicle stability control system.

(b) Reconfirm DTC.

OK:

DTC is output.

OK -- REPLACE 4WD CONTROL ECU

NG -- GO TO BRAKE CONTROL SYSTEM (ANTI-LOCK BRAKE SYSTEM OR VEHICLE STABILITY CONTROL SYSTEM)