02-22-2016, 11:33 AM
Join Date: Jul 2004
Location: WESTERN CANADA
CONDENSER FAN RELAY OPERATION
INTERNAL FUSED B+ CIRCUITS
CONDENSER FAN RELAY RESISTANCE
(Y145) CONDENSER FAN RELAY CONTROL CIRCUIT OPEN
(Y145) CONDENSER FAN RELAY CONTROL CIRCUIT SHORTED TO GROUND
Ignition on, engine not running.
With the DRBIIIt, actuate the Condenser Fan Relay.
Is the Condenser Fan Relay operating?
Yes → Refer to the INTERMITTENT CONDITION Symptom (Diagnostic
No → Go To 2
2 Turn the ignition off.
Remove the Condenser Fan Relay from the IPM.
Using a 12-volt test light connected to ground the Fused B+ circuits in the IPM.
Is the voltage above 11.0 volts?
Yes → Go To 3
No → Repair the Fused B+ circuits for an open or short to ground.
Inspect the related fuse and repair as necessary.
3 Measure the resistance of the Condenser Fan Relay Coil.
Is the resistance between 60 to 80 ohms?
Yes → Go To 4
No → Replace the Condenser Fan Relay.
4 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 (Y145) Condenser Fan Relay Control circuit from the
IPM to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
Yes → Go To 5
No → Repair the open in the (Y145) Condenser Fan Relay Control
5 Measure the resistance between ground and the (Y145) Condenser Fan Relay Control
circuit at the IPM.
Is the resistance below 100 ohms?
Yes → Repair the short to ground in the (Y145) Condenser Fan Relay
No → Go To 6
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, Replace and program the Powertrain Control Module per Service Information.
Stroked 397ci Hemi, Custom grind Ray Barton cam, Eagle heads, Functional Shaker hood, MM 87mm throttle body, Motive Gear 4:56 gears, Dynomax VT, Edge 3200 converter, Updated ignition coil conversion, Mopar side skirts, SRT 10 front fascia, Custom roll pan. 180 stat, JBA longtube headers, Rear 2" drop shackles, Custom Katzkin leather seats, many more interior and exterior touches...