OBD Guide

P1376

Ignition Ground Circuit

P1376 is an OBD-II diagnostic trouble code meaning: Ignition Ground Circuit. Common causes: poor connection in the ground circuit, corroded ground terminals. Estimated repair cost: ~$56.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
~$56 (est.)

Symptoms

  • Misfires
  • Difficulty starting the engine
  • Unstable engine operation
  • Power Loss
  • Check Engine light comes on

Causes

  • Poor connection in the ground circuit
  • Corroded ground terminals
  • Broken or damaged ground wires
  • Ignition coil malfunction
  • Problems with the ignition module

How to Fix

  1. Check motor ground connections
  2. Inspect and clean ground terminals
  3. Check the integrity of the ground wires
  4. Test ignition coil(s)
  5. Check the ignition module

Related codes

Error P1376 by Vehicle Brand

FAQ

What does the P1376 code mean?

P1376 is an OBD-II diagnostic trouble code that indicates: Ignition Ground Circuit

What causes a P1376 error code?

The most common causes of P1376 include: Poor connection in the ground circuit; Corroded ground terminals; Broken or damaged ground wires; Ignition coil malfunction.

How do I fix a P1376 diagnostic trouble code?

To fix P1376: Check motor ground connections. Inspect and clean ground terminals. Check the integrity of the ground wires. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1376?

Do not drive — repair immediately

How much does it cost to fix P1376?

The estimated repair cost for P1376 is ~$56. Actual cost depends on your vehicle, location, and labor rates.

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