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P0629

P0629 - Fuel Pump A Control Circuit High

Bosch · OBD1000

What does P0629 mean?

This code indicates a high voltage reading in the fuel pump 'A' control circuit, typically a short to voltage.

Common Causes

  • Short to voltage in the fuel pump control circuit
  • Damaged wiring harness
  • Faulty fuel pump relay

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check wiring for contact with a voltage source.

  2. 2

    Test the fuel pump circuit for voltage issues.

  3. 3

    Ensure all electrical connectors are properly seated.

  4. 4

    Seek expert advice for further troubleshooting.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

NO LINKNO LINK message displayed — Unable to communicate with the vehicleP0217P0217 — Engine Overtemp ConditionP0298P0298 — Engine Oil Temperature Too High
Source: OBD1000
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