■ 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 “B” TERMINAL CIRCUIT

1. Turn ignition switch OFF.
2. Check that starter motor “B” terminal connection is clean and tight.
3. Check voltage between starter motor “B” terminal and ground.

   Terminals | Voltage (Approx.)
   (+) | (–)
   Starter motor “B” terminal | Terminal
   E205 | 2 | Ground | Battery voltage

Is the inspection result normal?
YES>>GO TO 2.
NO>>Check harness between battery and starter motor for open circuit.
2.CHECK BATTERY CABLE CONNECTION STATUS (VOLTAGE DROP TEST)

1. Shift the shiftt lever to “P” or “N” position.
2. Check voltage between battery positive terminal and starter motor “B” terminal.

Terminals | Condition | Voltage (Approx.)
(+) | (–)
Starter motor “B” terminal | Terminal
Battery positive terminal | E205 | 2 | When the ignition switch is in START position | Less than 0.5 V

Is the inspection result normal?
YES>>GO TO 3.
NO>>Check harness between the battery and the starter motor for poor continuity.
3.CHECK GROUND CIRCUIT STATUS (VOLTAGE DROP TEST)

1. Shift the shiftt lever to “P” or “N” position.
2. Check voltage between starter motor case and battery negative terminal.

Terminals | Condition | Voltage (Approx.)
(+) | (–)
Starter motor case | Battery negative terminal | When the ignition switch is in START position | Less than 0.2 V

Is the inspection result normal?
YES>>“B” terminal circuit is OK. Further inspection is necessary. Refer to Work Flow (GT-R certified NISSAN dealer).
NO>>Check the starter motor case and ground for poor continuity.