P0483

Test 1 - 2:

Test 3 - 7:

Test 8 - 9:

SYMPTOM
P0483-FAN SPEED

WHEN MONITORED
While the engine is running.

SET CONDITION
The actual fan speed is less than 75 rpm or more than 4000 rpm.

POSSIBLE CAUSES
- Other DTC'S
- (Y5) signal circuit short to 5-volt supply (Y3) circuit
- (Y5) signal circuit open from ECM to fan clutch assembly
- (Y3) supply CKT open from ECM harness connector to fan clutch harness connector
- Intermittent condition
- (Y5) signal circuit shorted to return in the harness
- (Y5) signal circuit shorted to voltage
- (Y5) signal circuit in ECM shorted to ground inside ECM
- (Y5) signal circuit shorted to voltage in the ECM
- (Y3) 5-volt supply circuit in ECM