Check Battery Circuit

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

CHECK BATTERY CIRCUIT CONNECTION
1. Turn the ignition switch OFF.
2. Check to see if terminal 1 is clean and tight.
OK or NG
- OK: GO TO 2.
- NG: Repair terminal 1 connection. Confirm repair by performing complete Battery/Starting/Charging system test.
CHECK BATTERY CIRCUIT
Check voltage between generator connector E206 terminal 1 (B/R) and ground using a digital circuit tester.
- Battery voltage should exist.
OK or NG
- OK: GO TO 3.
- NG: Check the following.
  - 140A fusible link (letter a , located in fusible link box)
  - Harness for open or short between generator and fusible link
Fig 1: Checking Voltage Between Generator Connector E206 Terminal 1 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK VOLTAGE DROP ON BATTERY CIRCUIT
1. Start the engine.
2. Check voltage between generator connector E206 terminal 1 (B/R) and battery positive terminal using a digital circuit tester.
  - With engine running: Less than 0.2V at idle and warm.
OK or NG
- OK: GO TO 4.
- NG: Check harness between the battery and the generator for poor continuity.
Fig 2: Checking Voltage Between Generator Connector E206 Terminal 1 And Battery Positive Terminal
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK GENERATOR DRIVE BELT TENSION
1. Turn the ignition switch OFF.
2. Check generator drive belt tension. Refer to "DRIVE BELTS ".
OK or NG
- OK: Replace the generator. Refer to "REMOVAL AND INSTALLATION ". Confirm repair by performing complete battery/starting/charging system test.
- NG: Readjust drive belt tension. Refer to "TENSION ADJUSTMENT ".