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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1019 (Charging System) >> Component Diagnosis >> B Terminal Circuit >> Diagnosis Procedure

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.
  1. CHECK TERMINAL "1" CONNECTION
    1. Turn ignition switch OFF.
    2. Check if terminal "1" is clean and tight.

    Is the inspection result normal? 

    YES: GO TO 2

    NO: Repair terminal "1" connection. Confirm repair by performing complete Starting/Charging system test. Refer to diagnostic station instruction manual.

  2. CHECK TERMINAL "1" CIRCUIT

    Check voltage between generator connector F6 terminal 1 and ground.

    1 - ground: Battery voltage 

    Is the inspection result normal? 

    YES: GO TO 3

    NO: Check harness for open between generator and fusible link.

    Fig 1: Checking Voltage Between Generator Connector F6 Terminal 1 And Ground
    G05692390Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK TERMINAL "1" CONNECTION (VOLTAGE DROP TEST)
  1. Start engine, then engine running at idle and warm.
  2. Check voltage between battery positive terminal and generator connector F6 terminal 1.

1 - B+: Less than 0.2 V 

Is the inspection result normal? 

YES: Terminal "1" circuit is normal. Refer to "WORK FLOW ".

NO: Check harness between battery and generator for high resistance.

Fig 2: Checking Voltage Between Battery Positive Terminal And Generator Connector F6 Terminal 1
G05692391Courtesy of NISSAN MOTOR CO., U.S.A.