LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 2239 (Transfer Case (ATX14B)) >> DTC/Circuit Diagnosis >> DTC P1807: Vehicle Speed Sensor (A/T) >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC WITH TCM

    Perform self-diagnosis with TCM. Refer to "CONSULT FUNCTION (TRANSMISSION) ".

    Is any malfunction detected by self-diagnosis? 

    YES: Check the malfunctioning system.

    NO: GO TO 2.

  2. CHECK TRANSFER CONTROL UNIT

    Check transfer control unit input/output signal. Refer to "REFERENCE VALUE ".

    Are the inspection results normal? 

    YES: GO TO 3.

    NO: Check transfer 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

    Drive the vehicle and then perform self-diagnosis.

    Are the inspection results normal? 

    YES: Inspection End.

    NO: Perform self-diagnosis with TCM again.

scientia non olet · About LEMON Manuals