C1606

DTC C1606 EPS MOTOR

CONSULT-III REFERENCE VALUE IN DATA MONITOR MODE:

TERMINALS AND REFERENCE VALUES FOR EPS CONTROL UNIT
Refer to STC-10, "EPS Terminal and Reference Value". Pinout Values and Diagnostic Parameters

DIAGNOSTIC PROCEDURE

1. CHECK EPS MOTOR SIGNAL

With CONSULT-III
1. Start engine.
2. Select "DATA MONITOR" mode for "EPS" with CONSULT-III.
3. Check the values of "MOTOR SIG" and "MOTOR CURRENT". Refer to STC-9, "EPS Control Unit Input/Output Signal Reference Value". EPS Control Unit Input/Output Signal Reference Value
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.

2. CHECK EPS MOTOR
1. Turn ignition switch "OFF".
2. Disconnect EPS control unit harness connector.








3. Check resistance between EPS control unit harness connector (A) terminals.
4. Connect EPS control unit harness connector.
OK or NG
OK >> GO TO 3.
NG >> EPS motor is malfunctioning. Replace steering column assembly.

3. CHECK EPS CONTROL UNIT
Check EPS control unit input/output signal. Refer to STC-9, "EPS Control Unit Input/Output Signal Reference Value". EPS Control Unit Input/Output Signal Reference Value
OK or NG
OK >> GO TO 4.
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.

4. CHECK DTC
Perform the self-diagnosis, after driving the vehicle for a while.
OK or NG
OK >> INSPECTION END
NG >> GO TO 3.