P023F on Chevrolet
Fuel Pump Secondary Circuit/Open
P023F on Chevrolet vehicles indicates fuel pump secondary circuit/open. Au7o has documented this code across 1 Chevrolet model — most commonly on Silverado. The PCM detected an open or malfunction in the fuel pump secondary (power/high-side) circuit between the fuel pump control module and the fuel pump. This circuit supplies operating voltage to the pump. Typical repair costs on Chevrolet range from $250 to $600, depending on the specific model and root cause.
Common Causes of P023F
- •Open or corroded wiring/connector in the secondary fuel pump circuit
- •Failed fuel pump
- •Failed fuel pump control (driver) module
- •Blown fuse or failed relay
- •PCM fault
P023F 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.
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View P023F across all makes →Frequently Asked Questions
What does P023F mean on Chevrolet?▼
P023F stands for "Fuel Pump Secondary Circuit/Open." The PCM detected an open or malfunction in the fuel pump secondary (power/high-side) circuit between the fuel pump control module and the fuel pump. This circuit supplies operating voltage to the pump. On Chevrolet specifically, this code is documented across 1 model.
What causes P023F on Chevrolet vehicles?▼
Common causes on Chevrolet: Open or corroded wiring/connector in the secondary fuel pump circuit, Failed fuel pump, Failed fuel pump control (driver) module, Blown fuse or failed relay, PCM fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P023F on a Chevrolet?▼
Repair costs on Chevrolet range from $250 to $600, depending on the specific model and root cause.
Which Chevrolet models have P023F documented?▼
Au7o has documented P023F on 1 Chevrolet model: Silverado.