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Home >> Jeep >> 2005 >> Wrangler X, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 627 (Powertrain Diagnostic Procedures - DRIVEABILITY - Gas - Symptom & Diagnostic Tests (DTCS P0031 To P1899)) >> DRIVEABILITY - Gas - Symptoms >> Symptom: *CHECKING CONDENSER FAN OPERATION (GAS - EXCEPT NGC) >> Diagnostics Procedures

Diagnostics Procedures

WARNING: This page is about a different car, the 2004 Dodge Pickup and 2004 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to VERIFICATION TESTS for appropriate verification test procedures.
  1. Ignition on, engine not running.

    With the DRBIII®, actuate the Condenser Fan Relay.

    Does the Condenser Fan Motor cycle on and off?

    1. Yes --> Test Complete.
    2. No --> Go To 2
  2. Turn the ignition off.

    Remove the Condenser Fan Relay.

    Using a 12-volt test light connected to ground, probe the Fused B+ circuit in the Condenser Fan Relay connector.

    Did the light illuminate brightly?

    1. Yes --> Go To 3
    2. No --> Repair the open or short to ground in the Internal Fused B+ circuits. Inspect the related fuse and repair as necessary.

      Perform POWERTRAIN VERIFICATION TEST VER - 2 .

  3. Install a known good Relay.

    With the DRBIII®, actuate the Condenser Fan Relay.

    Does the Fan actuate?

    1. Yes --> Replace the Condenser Fan Relay.

      Perform POWERTRAIN VERIFICATION TEST VER - 2 .

    2. No --> Go To 4
  4. Turn the ignition off.

    Disconnect the PCM harness connectors.

    Measure the resistance of the (Y145) Condenser Fan Relay Control circuit from the Condenser Fan Relay to the PCM harness connectors.

    Is the resistance below 5.0 ohms?

    1. Yes --> Go To 5
    2. No --> Repair the short to ground in the (Y145) Condenser Fan Relay Control circuit.

      Perform POWERTRAIN VERIFICATION TEST VER - 2 .

  5. Measure the resistance of the (Y145) Condenser Fan Relay Output circuit between the Condenser Fan Motor harness connector and the Condenser Fan Relay connector.

    Is the resistance below 5.0 ohms?

    1. Yes --> Go To 6
    2. No --> Repair the open in the (Y145) Condenser Fan Relay Control circuit.

      Perform POWERTRAIN VERIFICATION TEST VER - 2 .

  6. Disconnect the Condenser Fan Motor harness connector.

    Measure the resistance between ground and the (Z212) Condenser Fan Motor ground circuit.

    Is the resistance below 5.0 ohms?

    1. Yes --> Go To 7
    2. No --> Repair the open in the (Z212) Condenser Fan ground circuit.

      Perform POWERTRAIN VERIFICATION TEST VER - 2 .

  7. If there are no possible causes remaining, view repair.
    1. Repair
      1. Replace the Condenser Fan Motor.
      2. Perform POWERTRAIN VERIFICATION TEST VER - 2 .
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