FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Fuel Pump Relay Circuit Shorted to Ground

Test 1 - Test 2:




Test 3 - Test 6:






SYMPTOM
P2100-FUEL PUMP RELAY CIRCUIT SHORTED TO GROUND

TEST NOTE
This symptom is diagnosed using the test P2100-FUEL PUMP RELAY CIRCUIT OPEN CIRCUIT.

POSSIBLE CAUSES
- Intermittent condition
- Engine control relay output circuit open
- Fuel lift pump relay
- Fuel lift pump relay control circuit shorted to ground
- Fuel lift pump relay control circuit open
- Engine control module