DTC C1120, C1121, C1122, C1123, C1124, C1125, C1126, C1127, C1164, C1165, C1166, C1167: Solenoid and VDC Change-Over Valve System Inspection

INSPECTION PROCEDURE

1. SELF-DIAGNOSIS RESULT CHECK 

   Check self-diagnosis results.

   Fig 1: Solenoid And VDC Change-Over Valve System Self-Diagnosis Results Chart

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

   Is the above displayed in the self-diagnosis display items?

   1. Yes: GO TO 2.
   2. No: Inspection End.
2. CONNECTOR INSPECTION 
   1. Disconnect ABS actuator and electric unit (control unit) connector E125.
   2. Check the terminals for deformation, disconnection, looseness or damage.

   OK or NG

   1. OK: GO TO 3.
   2. NG: Repair or replace as necessary.
3. CHECKING SOLENOID POWER AND GROUND 
   1. Check voltage between ABS actuator and electric unit (control unit) harness connector E125 and body ground.
   Fig 2: Checking Connector Voltage
   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 3: Checking Voltage Between ABS Actuator And Electric Unit (Control Unit) And Body Ground
   Courtesy of NISSAN MOTOR CO., U.S.A.
   2. Check resistance between ABS actuator and electric unit (control unit) harness connector E125 and body ground.
   Fig 4: Checking Connector Resistance

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 5: Checking Resistance Between ABS Actuator And Electric Unit (Control Unit) And Body Ground

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

   OK or NG

   1. OK: Perform self-diagnosis again. If the same results appear, replace ABS actuator and electric unit (control unit). Refer to REMOVAL AND INSTALLATION .
   2. NG: Repair the circuit.