Nissan Maxima Service and Repair Manual: S connector circuit 

Nissan Maxima Service and Repair Manual / Engine / Starting system / DTC/circuit diagnosis  / S connector circuit 

Description 

The starter motor magnetic switch is supplied with power when the ignition switch is turned to the START position while the selector lever is in the P or N position.

Diagnosis Procedure 

CAUTION: Perform diagnosis under the condition that engine cannot start by the following procedure.

  1.  Remove fuel pump fuse.
  2.  Crank or start the engine (where possible) until the fuel pressure is released 

1.CHECK "S" CONNECTOR CIRCUIT

  1.  Turn ignition switch OFF.
  2.  Disconnect starter motor connector F28.
  3.  Shift CVT selector lever to "P" or "N" position.
  4.  Check voltage between starter motor harness connector F28 terminal S and ground with the ignition in START. 

Nissan Maxima. CHECK  

With ignition switch in START S - ground Battery voltage 

2.CHECK CONNECTOR

  1.  Turn ignition switch OFF.
  2. Check the following terminals and connectors for damage, bent pins and loose connections.
  •  IPDM E/R harness connector F10
  •  Starter motor harness connector F28 

3.CHECK HARNESS CONTINUITY (OPEN/SHORT CIRCUIT)

  1.  Disconnect the following harness connectors.
  •  IPDM E/R connector F10
  • Starter motor connector F28
  1.  Check continuity between starter motor harness connector F28 terminal S and IPDM E/R harness connector F10 terminal 80. 

S - 80 Continuity ex 

  1. Check continuity between starter motor harness connector F28 terminal S and ground. 

S - ground Continuity does not exist 

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