Checking the Cooling Fan Operation

Test 1 - 4:

Test 5 - 9:

SYMPTOM
CHECKING ELECTRIC RADIATOR FAN OPERATION WITH NO DTCS

POSSIBLE CAUSES
- (A16) fused B+ circuit
- (K173) cooling fan relay control circuit
- (C23) radiator fan relay output circuit open
- (C23) radiator fan relay output circuit shorted to ground
- RAD fan motor
- Radiator fan relay
- (Z4) radiator fan ground circuit open