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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1167 (Engine Control System - DTCS P1225 To P2A03) >> P2100, P2103 Throttle Control Motor Relay >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Disconnect IPDM E/R harness connector.
    4. Check the continuity between IPDM E/R harness connector and ECM harness connector.
      CONTINUITY CHART

      IPDM E/R ECM Continuity
      Connector Terminal Connector Terminal
      F10 70 F14 15 Existed
    5. Also check harness for short to ground and short to power.

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Repair open circuit, short to ground or short to power in harness or connectors.

  2. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II
    1. Check the continuity between IPDM E/R harness connector and ECM harness connector.
      CONTINUITY CHART

      IPDM E/R ECM Continuity
      Connector Terminal Connector Terminal
      F10 54 F14 2 Existed
    2. Also check harness for short to ground and short to power.

    Is the inspection result normal? 

    YES: GO TO 3.

    NO: Repair open circuit, short to ground or short to power in harness or connectors.

  3. CHECK FUSE
    1. Disconnect 15 A fuse (No. 43) from IPDM E/R.
    2. Check if 15 A fuse is blown.

    Is the inspection result normal? 

    YES: GO TO 4.

    NO: Replace 15 A fuse.

  4. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    Is the inspection result normal? 

    YES: Replace IPDM E/R.

    NO: Repair or replace harness or connectors.

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