P0230 on Chevrolet
Fuel Pump Primary Circuit Malfunction
P0230 on Chevrolet vehicles indicates fuel pump primary circuit malfunction. Au7o has documented this code across 3 Chevrolet models — most commonly on Silverado, Silverado 1500, Tahoe. P0230 means the engine computer detected a fault in the fuel pump primary circuit — the control side that switches the fuel pump (or its relay) on and off. The PCM energizes this circuit to run the electric fuel pump that delivers fuel to the engine; if it sees voltage that is too high, too low, or out of expected range, it sets this code. Because the pump may not run correctly, the engine can crank without starting, stall, lose power, or hesitate. This is a circuit/control fault rather than a direct measurement of fuel pressure. Typical repair costs on Chevrolet range from $250 to $1,000, depending on the specific model and root cause.
Common Causes of P0230
- •Faulty fuel pump relay
- •Damaged wiring or connectors in the fuel pump control circuit
- •Corroded or loose ground/power connection
- •Failed fuel pump or fuel pump driver module
- •Blown fuse or fusible link
- •Open or short in the primary control wiring
- •Faulty PCM driver output (rare)
P0230 on Chevrolet by Model
Chevrolet Silverado(1 issue)
- Fuel Pump Control Module (FPCM/FSCM) Corrosion — Crank, No-Start2007-2013
GMT900 Silverados (and the late GMT800) mount the fuel pump control module / fuel-system control module on an exposed frame-rail bracket where it is constantly hit with road salt, water and debris. The module's connector and internals corrode, and the FPCM then fails to drive the in-tank pump — producing extended cranking, intermittent stalling, and ultimately a crank-but-no-start with no fuel pressure. Because the pump itself is often fine, owners frequently mis-diagnose and replace the in-tank pump first. A common, well-documented salt-belt failure with steady search demand.
Chevrolet Silverado 1500(1 issue)
- Fuel Pump Module Failure2019-2022
The fuel pump module can fail, causing hard starting, stalling, or no-start conditions. GM issued a recall for certain vehicles due to fuel pump issues. The fuel tank assembly design may contribute to pump failures.
Chevrolet Tahoe(2 issues)
- In-Tank Fuel Pump Module Failure (Long Crank / No-Start)2000-2006
The GMT800 Tahoe's in-tank electric fuel pump module is a common high-mileage failure. As the pump wears it struggles to build and hold the ~58-62 PSI these returnless systems need, producing extended cranking (worst after the truck sits overnight), stalling, hesitation under load, and eventually a crank-but-no-start with no pump 'prime' hum at key-on. Tank contamination/rust and heat accelerate the failure.
- In-tank fuel pump failure and pigtail connector meltdown1995-1999
The in-tank electric fuel pump on the GMT400 Tahoe is a common wear-out item, often failing around/after 100,000 miles. Continuous-duty operation, chronic low-fuel driving (which reduces pump cooling), and tank sediment clogging the sock filter all shorten pump life. A frequently overlooked contributor is the fuel pump wiring harness pigtail/ground connection ahead of the rear axle, which corrodes and melts, causing intermittent power loss to the pump. Skipping the recommended 30,000-mile fuel filter interval accelerates pump failure.
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View P0230 across all makes →Frequently Asked Questions
What does P0230 mean on Chevrolet?▼
P0230 stands for "Fuel Pump Primary Circuit Malfunction." P0230 means the engine computer detected a fault in the fuel pump primary circuit — the control side that switches the fuel pump (or its relay) on and off. The PCM energizes this circuit to run the electric fuel pump that delivers fuel to the engine; if it sees voltage that is too high, too low, or out of expected range, it sets this code. Because the pump may not run correctly, the engine can crank without starting, stall, lose power, or hesitate. This is a circuit/control fault rather than a direct measurement of fuel pressure. On Chevrolet specifically, this code is documented across 3 models.
What causes P0230 on Chevrolet vehicles?▼
Common causes on Chevrolet: Faulty fuel pump relay, Damaged wiring or connectors in the fuel pump control circuit, Corroded or loose ground/power connection, Failed fuel pump or fuel pump driver module, Blown fuse or fusible link. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0230 on a Chevrolet?▼
Repair costs on Chevrolet range from $250 to $1,000, depending on the specific model and root cause.
Which Chevrolet models have P0230 documented?▼
Au7o has documented P0230 on 3 Chevrolet models: Silverado, Silverado 1500, Tahoe.