Cooling Fan Control Circuit Low

P0480 - COOLING FAN CONTROL CIRCUIT LOW





When Monitored and Set Condition

- When Monitored: With the engine running.
- Set Condition: When Engine Coolant temperature is less than 70° C (158° F) and the Powertrain Control Module (PCM) senses voltage less than 2.0 volts above 85° C (185° F).







Diagnostic Test

1. CHECK FOR CURRENT DTC





Turn the ignition on.

With the DRB III(R), read PCM DTCs.

Is this DTC present?

Yes

- For complete diagnosis of this DTC, refer to (P0480) COOLING FAN CONTROL CIRCUIT.

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. 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.