Error code

OBD2 P0232

OBD2P0232
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Fuel Pump Secondary Circuit High.

Severity

highThe vehicle may be drivable but could experience stalling or no-start conditions.

Summary

P0232 indicates an abnormal current or voltage in the fuel pump relay circuit, which is part of the electrical system that controls the fuel pump.

Symptoms

  • Stored trouble code and possibly an illuminated warning light
  • Engine may stall or shut off unexpectedly at all engine speeds
  • No-start condition may be present
  • Fuel pump failure if the fuel filter is clogged or dirty
  • Mechanical noises from the fuel pump such as whining or grinding sounds

Common Causes

  • Damaged, burnt, shorted, or corroded wiring and/or electrical connectors in the fuel pump's control circuits
  • Defective fuel pump relay
  • Use of a substandard aftermarket fuel pump relay
  • Clogged or dirty fuel filter
  • Pinched or restricted fuel line(s)
  • Failed or failing PCM (rare)

Diagnosis

  1. Check for damaged, burnt, shorted, or corroded wiring and connectors in the fuel pump's control circuits.
  2. Inspect the fuel pump relay for damage or defects.
  3. Verify that a substandard aftermarket fuel pump relay is not being used.
  4. Clean or replace the fuel filter if it is clogged or dirty.

Fixes

  • Replace damaged wiring, connectors, and relays as needed.

FAQ

Can I drive with P0232?

The vehicle may be drivable but could experience stalling or no-start conditions. It's recommended to address the issue promptly.

What causes P0232?

Common causes include damaged wiring, a defective fuel pump relay, clogged fuel filter, and other electrical issues in the fuel system.

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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