System Testing: 300ZX
Start engine. Warm engine to operating temperature. Cooling fan should run. If not, check power supplies, grounds, relays, radiator fan switches and motors. If no faults are found, check component wiring.
Start engine. Warm engine to operating temperature. Cooling fan should run. If not, check power supplies, grounds, relays, radiator fan switches and motors. If no faults are found, check component wiring.