P2632 on Chevrolet
Fuel Pump "B" Control Circuit/Open
P2632 on Chevrolet vehicles indicates fuel pump "b" control circuit/open. Au7o has documented this code across 1 Chevrolet model — most commonly on Corvette. The PCM/FCM commands fuel pump 'B' (e.g., a secondary or auxiliary fuel pump) but detects an open in its control circuit — no continuity, so the pump cannot be driven.
Common Causes of P2632
- •Open/broken wiring in the fuel pump 'B' control circuit
- •Faulty fuel pump relay or blown fuse
- •Corroded or disconnected connector
- •Failed fuel pump (open winding)
- •PCM/FCM driver fault
P2632 on Chevrolet by Model
Chevrolet Corvette(1 issue)
- ZR1 LT7 Incidental DTCs P2632 and P2634 Found During a Scan2025
GM released Bulletin #25-NA-284, 'Information on DTCs P2632 and/or P2634 Found During a GDS 2 Scan for Another Concern,' with fitment limited to 2025 model year Corvettes equipped with the 5.5L twin-turbo LT7 - the ZR1. The bulletin's framing matters: these codes turn up as stored history codes while a technician is scanning for an unrelated complaint, which is exactly the situation where an aftermarket shop tends to sell an unnecessary repair. This is a diagnostic-information bulletin for the LT7 fuel/pump control DTC block, not a repair authorization.
Looking for P2632 on a different make?
View P2632 across all makes →Frequently Asked Questions
What does P2632 mean on Chevrolet?▼
P2632 stands for "Fuel Pump "B" Control Circuit/Open." The PCM/FCM commands fuel pump 'B' (e.g., a secondary or auxiliary fuel pump) but detects an open in its control circuit — no continuity, so the pump cannot be driven. On Chevrolet specifically, this code is documented across 1 model.
What causes P2632 on Chevrolet vehicles?▼
Common causes on Chevrolet: Open/broken wiring in the fuel pump 'B' control circuit, Faulty fuel pump relay or blown fuse, Corroded or disconnected connector, Failed fuel pump (open winding), PCM/FCM driver fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P2632 on a Chevrolet?▼
Repair costs vary widely depending on the root cause and specific Chevrolet model.
Which Chevrolet models have P2632 documented?▼
Au7o has documented P2632 on 1 Chevrolet model: Corvette.