Fuel Pump Relay Circuit Open Circuit

Test 1 - Test 2:

Test 3 - Test 6:

SYMPTOM
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