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 the engine cannot start by the following procedure.

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

CHECK TERMINAL B POWER SUPPLY VOLTAGE
1. Turn ignition switch OFF.
2. Make sure that starter motor connector F27 terminal B connection is clean and tight.
3. Check voltage between starter motor connector F27 terminal B and ground.
  B - ground Battery voltage
Is there battery voltage present?

YES: GO TO 2

NO: Check harness between battery and starter motor for open circuit.

Fig 1: Checking Voltage Between Starter Motor Connector F27 Terminal B And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK BATTERY CABLE (VOLTAGE DROP TEST)
1. Shift CVT selector lever to "P" or "N" position.
2. Check voltage between battery positive terminal and starter motor connector F27 terminal B while cranking the engine.
  While cranking the engine
  
  Terminal B - B+ terminal Less than 0.5 V
Is the voltage drop less than 0.5 V?

YES: GO TO 3

NO: Check harness between the battery and the starter motor for high resistance.

Fig 2: Checking Voltage Between Starter Motor Connector F27 Terminal B And Battery Positive Terminal
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK GROUND CIRCUIT STATUS (VOLTAGE DROP TEST)
1. Shift CVT selector lever to "P" or "N" position.
2. Check voltage between starter motor case and battery negative terminal while cranking the engine.
  While cranking the engine
  
  Starter case - B- terminal Less than 0.2 V
Is the voltage drop less than 0.2 V?

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

NO: Check the starter motor case to engine mounting for high resistance.

Fig 3: Checking Voltage Between Starter Motor Case And Battery Negative Terminal
Courtesy of NISSAN MOTOR CO., U.S.A.