Error code

OBD2 P2634

OBD2P2634
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Fuel Pump 'B' Control Circuit High.

Severity

highDriving may be possible but could lead to further damage or safety issues.

Summary

P2634 indicates that there is an issue with the control circuit of fuel pump B, which could be due to wiring problems or issues with the relay or ECM.

Common Causes

  • Wiring short to positive
  • Fuel pump relay failure
  • Engine Control Module (ECM) malfunction

Fixes

FAQ

What does P2634 mean?

P2634 indicates a high voltage issue in the control circuit of fuel pump B.

How serious is this code?

This code is considered serious as it can affect engine performance and safety. It should be addressed promptly to avoid further damage or issues.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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