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Home >> Nissan-Datsun >> 2004 >> Quest SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> DTC P1706: PNP Switch >> Diagnostic Procedure >> Procedure A
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Procedure A

  1. CHECK STARTING SYSTEM 

    Turn ignition switch OFF, then turn it to START.

    Does starter motor operate? 

    Yes or No 

    1. Yes: GO TO 2.
    2. No: Refer to STARTING SYSTEM .
  2. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I 
    1. Turn ignition switch OFF.
    2. Disconnect combination meter harness connector M23.
    3. Turn ignition switch ON.
    4. Check voltage between combination meter terminals 35, 36 and ground with CONSULT-II or tester under the following conditions.
      Fig 1: Checking Voltage Between Combination Meter Terminals 35, 36 And Ground
      G00775926Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 2: Displaying Conditions For Testing
      G00775925Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO  5 .
    2. NG: GO TO 3.
  3. CHECK PNP SWITCH POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect PNP switch harness connector.
      Fig 3: Disconnecting PNP Switch Harness Connector
      G00775927Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Turn ignition switch ON.
    4. Check voltage between PNP switch terminal 3 and ground with CONSULT-II or tester.
      Fig 4: Checking Voltage Between PNP Switch Terminal 3 And Ground
      G00775928Courtesy of NISSAN MOTOR CO., U.S.A.
      1. Voltage: Battery voltage 

    OK or NG 

    1. OK: GO TO  5 .
    2. NG: GO TO 4.
  4. DETECT MALFUNCTIONING PART 

    Check the following.

    • Harness connectors E8, F17
    • Harness connectors E25, M90
    • Fuse block (J/B) connector M4
    • Harness for open or short between PNP switch and fuse
      1. Repair open circuit or short to ground or short to power in harness or connectors.
  5. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I 
    1. Check harness continuity between PNP switch terminal 7 and combination meter terminal 35, PNP switch terminal 9 and combination meter terminal 36.

      Refer to WIRING DIAGRAM  .

      1. Continuity should exist. 
    2. Also check harness for short to ground and short to power.

    OK or NG 

    1. OK: GO TO 7.
    2. NG: GO TO 6.
  6. DETECT MALFUNCTIONING PART 

    Check the following.

    • Harness connectors E2, F32
    • Harness connectors E25, M90
    • Harness for open or short between PNP switch and combination meter
      1. Repair open circuit or short to ground or short to power in harness or connectors.
  7. CHECK PNP SWITCH 

    Refer to DTC P0705 PARK/NEUTRAL POSITION SWITCH .

    OK or NG 

    1. OK: GO TO 8.
    2. NG: Replace PNP switch.
  8. CHECK INTERMITTENT INCIDENT 

    Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT  .

    1. INSPECTION END 
  9. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-II 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check harness continuity between ECM terminal 102 and combination meter terminal 12. Refer to WIRING DIAGRAM  .
      1. Continuity should exist. 
    4. Also check harness for short to ground and short to power.

    OK or NG 

    1. OK: GO TO  11 .
    2. NG: GO TO 10.
  10. DETECT MALFUNCTIONING PART 

    Check the following.

    • Harness connectors E134, M83
    • Harness for open or short between ECM and combination meter
      1. Repair open circuit or short to ground or short to power in harness or connectors.
  11. 11. REPLACE COMBINATION METER 

    Refer to COMBINATION METERS .

    OK or NG 

    1. OK: GO TO 12.
    2. NG: Replace combination meter
  12. CHECK INTERMITTENT INCIDENT 

    Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT  .

    1. INSPECTION END 
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