Nissan Versa (N17): C1609 Vehicle speed signal

Description

EPS control unit receives the vehicle speed signal from ABS actuator and electric unit (control unit) via CAN communication line.

DTC Logic

DTC DETECTION LOGIC       

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

1. Turn the ignition switch OFF to ON.
2. Perform "EPS" self-diagnosis.

Is DTC "C1609" detected?

YES >> Proceed to diagnosis procedure. Refer to STC "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

1.PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS

With CONSULT

1. Turn the ignition switch OFF to ON.
2. Perform "ABS" self-diagnosis.

Is any DTC detected?

YES >> Check the DTC.

NO >> GO TO 2.

2.PERFORM SELF-DIAGNOSIS

With CONSULT

Perform "EPS" self-diagnosis.

Is DTC "C1609" detected?

YES >> Replace EPS control unit. Refer to STC "Removal and Installation".

NO >> Check EPS control unit pin terminals for damage or loose connection with harness connector. If any item are damaged, repair or replace malfunctioning component.