P1230
Fuel Pump Control Unit Malfunction
Severity
🔴 HighCan you drive?
Do not drive — repair immediately
Approx. repair cost
$33–167 (est.)
Symptoms
- Engine won't start
- Unstable engine operation
- Power Loss
- Stalls at idle
- Check Engine light comes on
Causes
- Malfunction of the fuel pump control unit
- Open or short circuit in control circuit
- Poor contact in connectors
- Fuel pump relay malfunction
- Problems with the fuel pump circuit fuse
How to Fix
- Check the fuel pump fuse
- Check fuel pump relay
- Inspect the connectors and wiring of the control unit
- Check control circuit resistance
- If necessary, replace the fuel pump control unit