Check Magnetic Switch Circuit

WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK POWER SUPPLY FOR MAGNETIC SWITCH
1. Remove the fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
3. Turn the ignition switch OFF.
4. Disconnect starter motor connector F28.
5. Check voltage between starter motor connector F28 terminal S and ground using a digital circuit tester.
  
  Fig 1: Checking Voltage Between Starter Motor Connector F28 Terminal S And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Ignition switch in START: Battery voltage
OK or NG

OK: GO TO 2.

NG: Check the following:
- 40A fusible link (letter m , located in fuse and fusible link box)
- 15A fuses [Nos. 34 and 41, located in the intelligent power distribution module engine room (IPDM E/R)]
- Ignition switch
- Starter relay [within the intelligent power distribution module engine room (IPDM E/R)]
- Starter relay request ON signal
- Harness for open or short
CHECK VOLTAGE DROP ON MAGNETIC SWITCH CIRCUIT
1. Connect starter motor connector F28.
2. Check voltage between starter motor connector F28 terminal S and battery positive terminal using a digital tester.
  
  Fig 2: Checking Voltage Between Starter Motor Connector F28 Terminal S And Battery Positive Terminal
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Ignition switch in START: Less than 1V
OK or NG

OK: Magnetic switch circuit is OK. Further inspection is necessary. Refer to "WORK FLOW ".

NG: Check harness between the battery and the starter motor "S" terminal for poor continuity.