Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

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

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

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.
  With ignition switch in START
  
  S - ground Battery voltage
Is battery voltage present?

YES: "S" circuit is OK. Further inspection necessary. Refer to "WORK FLOW ".

NO: GO TO 2

Fig 1: Checking Voltage Between Starter Motor Harness Connector F28 Terminal S And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
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
Is the inspection result normal?

YES: GO TO 3

NO: Repair the terminal and connector.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the following harness connectors.
  - IPDM E/R connector F10
  - Starter motor connector F28
2. Check continuity between starter motor harness connector F28 terminal S and IPDM E/R harness connector F10 terminal 80.
  S - 80 Continuity exists
Is there proper continuity between the two pins?

YES: Further inspection necessary. Refer to "WORK FLOW ".

NO: Repair the harness.

Fig 2: Checking Continuity Between Connector F28 Terminals And IPDM E/R Harness Connector F10 Terminal 80
Courtesy of NISSAN MOTOR CO., U.S.A.