P0232 on Chevrolet
Fuel Pump Secondary Circuit - High
P0232 on Chevrolet vehicles indicates fuel pump secondary circuit - high. Au7o has documented this code across 2 Chevrolet models — most commonly on Equinox, Silverado 1500. This code means the engine computer has detected a high voltage signal in the fuel pump secondary (control) circuit, indicating the circuit that drives or monitors the fuel pump relay is reading higher than it should. The computer controls fuel pump power delivery through a relay and/or driver module, and a high reading suggests a short to voltage, a stuck relay, or a wiring fault in that control circuit. Depending on the fault, it can cause hard starting, stalling, or a no-start because fuel delivery is disrupted. The problem is typically electrical, in the relay, driver, or wiring, rather than the pump motor itself. Typical repair costs on Chevrolet range from $400 to $1,000, depending on the specific model and root cause.
Common Causes of P0232
- •Faulty fuel pump relay (stuck or shorted)
- •Short to voltage in the fuel pump control wiring
- •Failed fuel pump driver module
- •Corroded or damaged connectors in the circuit
- •Faulty fuel pump (internal short)
- •Wiring chafed against the body or harness short
- •Faulty PCM/ECM (rare)
P0232 on Chevrolet by Model
Chevrolet Equinox(1 issue)
- Fuel Pump Module Failure Causing Engine Stall2021-2022
The fuel pump module fails to consistently provide adequate fuel flow to the engine, causing potential stalling while driving. This creates a significant safety hazard as the engine can stall unexpectedly in traffic. GM issued recall N222372310 affecting 23,164 vehicles.
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.
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View P0232 across all makes →Frequently Asked Questions
What does P0232 mean on Chevrolet?▼
P0232 stands for "Fuel Pump Secondary Circuit - High." This code means the engine computer has detected a high voltage signal in the fuel pump secondary (control) circuit, indicating the circuit that drives or monitors the fuel pump relay is reading higher than it should. The computer controls fuel pump power delivery through a relay and/or driver module, and a high reading suggests a short to voltage, a stuck relay, or a wiring fault in that control circuit. Depending on the fault, it can cause hard starting, stalling, or a no-start because fuel delivery is disrupted. The problem is typically electrical, in the relay, driver, or wiring, rather than the pump motor itself. On Chevrolet specifically, this code is documented across 2 models.
What causes P0232 on Chevrolet vehicles?▼
Common causes on Chevrolet: Faulty fuel pump relay (stuck or shorted), Short to voltage in the fuel pump control wiring, Failed fuel pump driver module, Corroded or damaged connectors in the circuit, Faulty fuel pump (internal short). Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0232 on a Chevrolet?▼
Repair costs on Chevrolet range from $400 to $1,000, depending on the specific model and root cause.
Which Chevrolet models have P0232 documented?▼
Au7o has documented P0232 on 2 Chevrolet models: Equinox, Silverado 1500.