Ignition Knob Switch Check
- CHECK IGNITION KNOB SWITCH
With CONSULT-III
Display "PUSH SW" on DATA MONITOR screen, and check if ON/OFF display is linked to ignition switch operation.
VOLTAGE AND CONTINUITY SPECIFICATIONSMonitor item Condition PUSH SW Ignition switch is pushed: ON Ignition switch is released: OFF Without CONSULT-III
- Turn ignition switch OFF.
- Disconnect Intelligent Key unit connector.
- Check voltage between Intelligent Key unit harness connector M42 terminal 27 and ground.VOLTAGE AND CONTINUITY SPECIFICATIONS
Connector Terminals Condition Voltage (V) (Approx.) (+) (-) M42 27 Ground Ignition switch is pushed Battery voltage Ignition switch is released 0 Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
OK: Ignition knob switch is OK.
NG: GO TO 2.
- CHECK IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect key switch and ignition knob switch connector.
- Check voltage between key switch and ignition knob switch harness connector M49 terminal 4 and ground.
4 - Ground : Battery voltage
Fig 2: Checking Voltage Between Key Switch And Ignition Knob Switch Harness Connector M49 Terminal 4 And GroundCourtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
OK: GO TO 3.
NG: Repair or replace key switch and ignition knob switch power supply circuit.
- CHECK IGNITION KNOB SWITCH OPERATION
Check continuity between key switch and ignition knob switch terminals 3 and 4.
VOLTAGE AND CONTINUITY SPECIFICATIONSComponent Terminals Condition Continuity Ignition knob switch 3 4 Ignition switch is pushed Yes Ignition switch is released No Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
OK: GO TO 4.
NG: Replace key switch and ignition knob switch.
- CHECK IGNITION KNOB SWITCH CIRCUIT
- Check continuity between Intelligent Key unit harness connector M42 (A) terminal 27 and key switch and ignition knob switch harness connector M49 (B) terminal 3.
27 - 3 : Continuity should exist.
- Check continuity between Intelligent Key unit harness connector M42 terminal 27 and ground.
27 - Ground : Continuity should not exist.
Fig 4: Checking Continuity Between Intelligent Key Unit Harness Connector M42 Terminal 27 And GroundCourtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
OK: Check the condition of harness and harness connector.
NG: Repair or replace harness between Intelligent Key unit and key switch and ignition knob switch.
- Check continuity between Intelligent Key unit harness connector M42 (A) terminal 27 and key switch and ignition knob switch harness connector M49 (B) terminal 3.