Diagnostic Procedure

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.

Ignition on, engine not running.
With the DRBIII®, actuate the Condenser Fan Relay.

Is the Condenser Fan Relay operating?
1. Yes --> Refer to the SYMPTOM: INTERMITTENT CONDITION Symptom (Diagnostic Procedure).
  Perform POWERTRAIN VERIFICATION TEST VER - 5 .
2. No --> Go To 2
Turn the ignition off.
Remove the Condenser Fan Relay from the IPM.

Using a 12-volt test light connected to ground, probe the (A16) Fused B+ circuits in the IPM.

Is the voltage above 11.0 volts?
1. Yes --> Go To 3
2. No --> Repair the open or short to ground in the (A16) Fused B+ circuits. Inspect the related fuse and repair as necessary.
  Perform POWERTRAIN VERIFICATION TEST VER - 5 .
Measure the resistance of the Condenser Fan Relay Coil.
Is the resistance between 60 to 80 ohms?
1. Yes --> Go To 4
2. No --> Replace the Condenser Fan Relay.
  Perform POWERTRAIN VERIFICATION TEST VER - 5 .
Disconnect the PCM harness connectors.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMINALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.

Measure the resistance of the (K173) Condenser Fan Relay Control circuit from the IPM to the appropriate terminal of special tool #8815.

Is the resistance below 5.0 ohms?
1. Yes --> Go To 5
2. No --> Repair the open in the (K173) Condenser Fan Relay Control circuit.
  Perform POWERTRAIN VERIFICATION TEST VER - 5 .
Measure the resistance between ground and the (K173) Condenser Fan Relay Control circuit at the IPM.
Is the resistance below 100 ohms?
1. Yes --> Repair the short to ground in the (K173) Condenser Fan Relay Control circuit.
  Perform POWERTRAIN VERIFICATION TEST VER - 5 .
2. No --> Go To 6

NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.

Using the schematics as a guide, inspect the wire harness and connectors.
Pay particular attention to all Power and Ground circuits. If there are no possible causes remaining, view repair.
1. Repair
  1. Replace and program the Powertrain Control Module per Service Information.
  2. Perform POWERTRAIN VERIFICATION TEST VER - 5 .