P0232 Code: Fuel Pump Secondary Circuit High
🟠 Moderate severity · drivable
Drivable, but the pump circuit has an electrical fault that could damage the pump, so fix it soon.
What P0232 means
The voltage on the fuel pump's secondary circuit reads higher than expected. This usually means the wiring is shorted to power or the relay is stuck on, feeding the pump too much voltage.
Symptoms
- Check engine light is on
- Fuel pump running constantly
- Strong fuel smell
- Possible hard starting after the pump is damaged
Common causes
- most common: Wiring shorted to power in the pump circuit
- common: Fuel pump relay stuck closed
- less common: Faulty fuel pump driver or engine computer
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Repair wiring shorted to power | Mechanic | $50–150 |
| Replace the fuel pump relay | Yes | $20–60 |
| Replace a damaged fuel pump | Mechanic | $300–800 |
Frequently asked questions
Can I drive with a P0232 code?
Yes, but the pump circuit is faulty and could burn out the pump. Fix it soon.
What is the most common cause of P0232?
Wiring shorted to power, or a fuel pump relay stuck in the on position.
How much does it cost to fix a P0232?
Usually $20–60 for a new relay, $50–150 for wiring repairs, or $300–800 for a new pump.
Related codes
P0230
P0230 Code: Fuel Pump Primary Circuit Malfunction
P0231P0231 Code: Fuel Pump Secondary Circuit Low
P0233P0233 Code: Fuel Pump Secondary Circuit Intermittent
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.