P1246 – Fuel Pump Control Circuit Short to Ground
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Symptoms
- Blown fuse
- No start
- Pump inoperative
- Check engine light
- Possible wiring smoke or smell
Causes
- Chafed wiring
- Pinched harness
- Incorrect repair
- Shorted control module
- Relay internal short
Diagnosis
- Check fuse condition
- Inspect harness for damage
- Measure resistance to ground
- Isolate sections of circuit
- Scan for related codes
Repair
- Repair wiring
- Replace damaged harness
- Replace relay
- Replace control module if shorted
- Secure harness routing