P0232 code meaning
Fuel Pump Secondary Circuit High
Powertrain system Generic code P02xx codes Check engine light
What P0232 means
The fuel pump circuit has two sides: the primary circuit is the engine module's output to the fuel pump relay coil (or to a pump control module), the secondary circuit is the power circuit from relay contact or module to the pump itself. P0232 means there is voltage in the pump power circuit although the pump should be off – a welded relay contact or a power wire shorted to another supply. GM pump modules check this after switch-off or in the off phase of the PWM cycle; above about 4 V the code sets once per trip, with the warning light after two trips. Ford's relay systems see it through the pump monitor wire. Driving is usually unaffected, but the pump may keep running with the ignition off and drain the battery – and an emergency shutdown would not work.
P0232 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyEasy, DIY possible
- Typical labor0.3 to 2 hours
- Clears after repairAfter a drive cycle
Symptoms of P0232
- Fuel pump keeps running after switch-off
- Battery drained overnight
- Check engine light on (GM after two trips)
- Often nothing noticeable while driving
Common causes of P0232
- Most likelyRelay contact welded or sticking
- PossiblePump power wire shorted to another supply
- PossiblePump control module output stage shorted
- Less likelyMoisture or corrosion in the connector causing leakage current
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Fuel pump relayFuel pump control moduleFuel pump wiring
What each part of P0232 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 2 | Area: fuel and air metering (injector circuit). |
| 32 | The exact fault in that area. |
What to do next
- Note P0232 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0232
What does P0232 mean?
P0232 means "Fuel Pump Secondary Circuit High". The fuel pump circuit has two sides: the primary circuit is the engine module's output to the fuel pump relay coil (or to a pump control module), the secondary circuit is the power circuit from relay contact or module to the pump itself. It is a generic code, so it means the same on every make.
Is it safe to drive with P0232?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0232 fail an emissions test?
Yes, it can. P0232 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0232 to fix?
Difficulty: easy. A typical repair takes 0.3 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P0232 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.