Inspection 11 VDC/TCS/ABS Control Unit Power and Ground Systems

INSPECTION PROCEDURE

1. SELF-DIAGNOSIS RESULT CHECK 

   Check self-diagnosis results.

   Self-diagnosis results

   LOW POWER VOLTAGE

   Is the above displayed in the self-diagnosis item? 

   1. YES : GO TO 2.
   2. NO : Inspection End
2. CONNECTOR INSPECTION 
   1. Disconnect the VDC/TCS/ABS control unit connector and check the terminal for deformation, disconnection, looseness, and so on. If there is an error, repair or replace the terminal.
   2. Securely reconnect the connector and Re-conduct self-diagnosis.

   OK or NG 

   1. OK : The connector terminal contact is loose, damaged, open or shorted.
   2. NG : GO TO 3.
3. VDC/TCS/ABS CONTROL UNIT POWER AND GROUND CIRCUIT INSPECTION 
   1. Disconnect VDC/TCS/ABS control unit connector.
   2. With the ignition switch turned on and off, check the voltage and continuity between the VDC/TCS/ABS control unit connector E118 and the ground.
      Fig 1: Checking Voltage Between VDC/TCS/ABS Control Unit Connector E118 Terminal 1 & Ground

      Courtesy of NISSAN MOTOR CO., U.S.A.
      VOLTAGE REFERENCE DATA - VDC/TCS/ABS CONTROL UNIT CONNECTOR E118 TERMINAL 1
      
      

      Signal name	VDC/TCS/ABS control unit (Harness connector E118)	Ground	Measured value
      Power supply	1 (G/R)	-	Battery voltage (Approx. 12V)

      Fig 2: Checking Continuity Between VDC/TCS/ABS Control Unit Connector E118 Terminals 28, 29 & Ground

      Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 3: VDC/TCS/ABS Control Unit Connector E118 Terminals 28, 29 & Ground Continuity Specification Table

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

   OK or NG 

   1. OK : Check the battery (terminal looseness, low voltage, etc.) For any non-standard condition. If any non-standard condition exists, recharge or replace the battery as necessary.
   2. NG : The corresponding harness circuit is open or shorted. Repair the circuit.