P1232 – Fuel Pump Secondary Circuit High
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Symptoms
- Check engine light
- Possible pump noise
- Drivability issues
- Surging
- Hard starting
Causes
- Short to power
- Faulty control module
- Incorrect wiring repair
- Relay stuck on
- Ground reference issue
Diagnosis
- Measure circuit voltage
- Inspect wiring for shorts
- Check relay operation
- Check control module outputs
- Scan live data
Repair
- Repair wiring
- Replace relay
- Repair control module
- Correct previous repairs
- Secure grounds