Inspection Procedure

Check the self-diagnostic results.

Is above displayed in the self-diagnosis item? 

YES: GO TO 2.

NO: INSPECTION END

1. Turn ignition switch OFF and disconnect VDC/TCS/ABS control unit connector. Then reconnect it securely.
2. Perform self-diagnosis.

Do any self-diagnosis items appear? 

YES: GO TO 3.

NO: Poor connection. Repair or replace connector.

1. Turn ignition switch OFF and disconnect VDC/TCS/ABS control unit connector.
2. Turn ignition switch ON (but do not start engine). Check voltage between VDC/TCS/ABS control unit harness connector M93 and ground.
   VDC/TCS/ABS CONTROL UNIT POWER SYSTEM (1)
   
   

   VDC/TCS/ABS control unit	Ground	Voltage
   1	-	Battery voltage (Approx. 12V)

   Fig 1: Checking VDC/TCS/ABS Control Unit Power System (1)

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: GO TO 4.

NG: GO TO  5.

Turn ignition switch OFF and check VDC/TCS/ABS control unit ground circuit.

Fig 2: Checking VDC/TCS/ABS Control Unit Ground Circuit

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: Perform VDC/TCS/ABS control unit self-diagnosis again.

NG: Poor installation of VDC/TCS/ABS control unit, or harness malfunction

1. Check fuse 10 A.
2. Check continuity between battery positive terminal and VDC/TCS/ABS control unit harness connector M93.
   VDC/TCS/ABS CONTROL UNIT POWER SYSTEM (2)
   
   

   VDC/TCS/ABS control unit	Battery positive terminal	Continuity
   1	-	Yes

   Fig 3: Checking VDC/TCS/ABS Control Unit Power System (2)

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: Check for non-standard conditions in battery (terminal looseness, low voltage, etc.) and alternator.

NG:

• Replace 10 A fuse.
• Open or short in harness.