Cooling Fan Control Circuit High

COOLING FAN CONTROL CIRCUIT HIGH






When Monitored and Set Condition
^ When Monitored: With the ignition on.
^ Set Condition: When Engine Coolant temperature is less than 70 °C (158 °F) and the Powertrain Control Module (PCM) senses voltage greater than 2.5 volts on the Radiator Fan Control circuit.

POSSIBLE CAUSES
RADIATOR FAN CONTROL CIRCUIT SHORTED TO VOLTAGE
RADIATOR FAN CONTROL MODULE
POWERTRAIN CONTROL MODULE

Diagnostic Test
1. CHECK FOR CURRENT DTC





Turn the ignition on.
With the DRB III, read the PCM DTCs.
Is this DTC preset?
Yes>> For complete diagnosis of this DTC, Cooling Fan Control Circuit Open
No>> Go To 2

2. INTERMITTENT WIRING AND CONNECTORS
The conditions necessary to set this DTC are not present at this time.
Note: Check connectors-Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits.

Note: Check for any Technical Service Bulletins that may apply.

Were there any problems found?
Yes>> Repair as necessary.
Perform Powertrain Verification Test - Ver 2
No>> The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.