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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 892 (LAN System (Can)) >> DTC/Circuit Diagnosis >> IPDM-E Branch Line Circuit >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CONNECTOR 
    1. Turn the ignition switch OFF.
    2. Disconnect the battery cable from the negative terminal.
    3. Check the terminals and connectors of the IPDM E/R for damage, bend and loose connection (unit side and connector side).

      Is the inspection result normal? 

      YES: GO TO 2.

      NO: Repair the terminal and connector.

  2. CHECK HARNESS FOR OPEN CIRCUIT 
    1. Disconnect the connector of IPDM E/R.
    2. Check the resistance between the IPDM E/R harness connector terminals.
      IPDM E/R harness connector Resistance (Ω)
      Connector No. Terminal No.
      E122 39 40 Approx. 108 - 132

      Is the measurement value within the specification? 

      YES: GO TO 3.

      NO: Repair the IPDM E/R branch line.

  3. CHECK POWER SUPPLY AND GROUND CIRCUIT 

    Check the power supply and the ground circuit of the IPDM E/R. Refer to "DIAGNOSIS PROCEDURE ".

    Is the inspection result normal? 

    YES (Present error): Replace the IPDM E/R. Refer to "REMOVAL AND INSTALLATION OF IPDM E/R ".

    YES (Past error): Error was detected in the IPDM E/R branch line.

    NO: Repair the power supply and the ground circuit.

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