P2402: EVAP System Leak Detection Pump Control Circuit High
A generic powertrain (engine and transmission) trouble code, same meaning on every brand.
Yes - no effect on engine operation.
Symptoms
- Check engine light
- Emissions monitors not completing
- No driveability change
Likely causes, most common first
- Leak detection pump circuit open or shorted to voltage
- Failed pump
- Broken wire
- Blown fuse
Read P2402 yourself before paying for diagnosis
A basic Bluetooth OBD-II scanner ($20-40) plugs into the port under the dashboard and shows this code with live sensor data on your phone - useful both for confirming the fix and for talking to a shop from an informed position.
What is going on and how it gets diagnosed
P2402 is the high-voltage counterpart of P2401 in the leak detection pump circuit. As with all paired low and high circuit codes, the pair tells you where to look rather than what to buy: high usually means an open circuit or a short to power, low usually means a short to ground.
On several designs the pump, its filter and the vent valve come as one assembly, so the practical repair replaces all three whether or not all three have failed. Ask what the quoted part actually includes before comparing prices.
Repair options and cost
Typical US independent-shop ranges, parts and labor. Dealers run higher; regional labor rates vary.
Owner reports mentioning P2402
“Check Engine light illuminated, code: P2402 #07E8 EVAP SYSTEM LEAK DETECTION PUMP CONTROL CIRCUIT HIGH. Checked online and same year, same model have recall for same issue.”2022 Volkswagen Tiguan · Apr 2026
“The contact owns a 2014 BMW X1. The contact stated while driving at an undisclosed speed, the service brake warning light and the air bag warning light illuminated. The vehicle was taken to Pep Boys where it was diagnosed and produced code: P2402 indicating that the (EVAP) module failed and needed to be replaced. The vehicle was not repaired. Neither the dealer nor the manufacturer was notified of the failure. The failure mileage was approximately 125,000.”2014 BMW X1 · Oct 2023 · 125,000 mi
“Started car this morning and the check engine light came on. Took to parts store and hooked it up to the computer and found codes (p2401, p043e, p043f, p2402, p2419) everything I have researched comes back to evap canister failure, and possible wiring failure. More research shows these issues causing people getting stranded and others with no problem other then light, and others with a strong gas smell. If this causes a gas smell, then a potential fire hazard is formed.”2007 Toyota Corolla · Jan 2021 · 130,000 mi
Cars that report P2402 most often
Based on mentions of this code in NHTSA owner complaints.
Frequently asked questions
Can I drive with P2402?
Yes - no effect on engine operation.
How much does it cost to fix P2402?
Typical US repair costs range from $20 for the simplest fix (leak detection pump) to $700 in the worst case. The right number depends on which cause your car has - see the causes list.
Related codes
The codes closest to P2402. They often appear together, and telling them apart is usually what narrows the diagnosis.
Definition per SAE J2012 standard nomenclature. Symptoms, causes and costs are editorial guidance - always confirm with a diagnosis of your specific vehicle.