Nissan Sentra manuals

Nissan Sentra Service Manual: C1606 EPS Motor

DTC Logic

DTC DETECTION LOGIC

Dtc Display item Malfunction detected condition Possible cause
C1606 EPS MOTOR When the motor driver malfunction of EPS control unit or EPS motor malfunction is detected.
  • Harness or connector
  • EPS motor
  • Eps control unit

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 “C1606” detected? Yes >> proceed to diagnosis procedure. Refer to stc-27, "diagnosis procedure".

No >> inspection end.

Diagnosis Procedure

1.Check terminals and harness connectors

Check eps control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace the malfunctioning parts.

Is the inspection result normal? Yes >> go to 2.

No >> repair or replace the malfunctioning parts.

2.PERFORM SELF-DIAGNOSIS

With consult


  1. Erase self-diagnostic results for eps.

  2. Turn the ignition switch OFF, and then wait 10 seconds and more.

  3. Perform self-diagnosis for EPS.

Is DTC C1606 detected? YES >> Replace EPS control unit. Refer to STC-39, "Removal and Installation".

NO >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".

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Other materials:

Preparation
Special Service Tool The actual shape of the tools may differ from those illustrated here. Commercial Service Tool Clip list Descriptions for Clips Replace any clips which are damaged during removal or installation. ...

System
Warning chime system Warning chime system : system diagram Warning chime system : system description Description The buzzer for warning chime system is installed in the combination meter. The buzzer sounds when the combination meter receives a buzzer output signal from the bcm. Th ...

Push-button ignition switch positions
LOCK (Normal parking position): The ignition switch can only be locked in this position. The ignition switch will be unlocked when it is pushed to the ACC position while carrying the Intelligent Key or with the Intelligent Key inserted in the port. The ignition switch will lock when any d ...

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