C1604

TROUBLE DIAGNOSIS FOR SYSTEM


DTC C1604 TORQUE SENSOR


CONSULT-III REFERENCE VALUE IN DATA MONITOR MODE






TERMINALS AND REFERENCE VALUES FOR EPS CONTROL UNIT
Pinout Values and Diagnostic Parameters.

DIAGNOSTIC PROCEDURE
1.CHECK TORQUE SENSOR SIGNAL

With CONSULT-III
1. Start engine.
2. Select "DATA MONITOR" mode for "EPS" with CONSULT-III.
3. Check the value of "TORQUE SENSOR". Pinout Values and Diagnostic Parameters.

Without CONSULT-III
1. Start engine.
2. Check voltage between EPS control unit harness connector M87 terminals 11, 12, 13, 14 and ground. Pinout Values and Diagnostic Parameters.
OK or NG
OK - INSPECTION END
NG - GO TO 2.
2.CHECK EPS CONTROL UNIT
Check EPS control unit input/output signal. Pinout Values and Diagnostic Parameters.
OK or NG
OK - GO TO 3.
NG - Check EPS control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
3.CHECK DTC
Perform the self-diagnosis, after driving the vehicle for a while.
OK or NG
OK - INSPECTION END
NG - Torque sensor is malfunctioning. Replace steering column assembly. Service and Repair.