OBD Guide

P0357

Ignition Coil G Primary Control Circuit/Open

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Misfires
  • Unstable engine operation
  • Power Loss
  • Increased fuel consumption
  • Check Engine light comes on

Causes

  • Faulty ignition coil
  • Open/short circuit in wiring harness
  • Bad contacts in connectors
  • Engine control module (ECU) malfunction
  • Damaged fuses

How to Fix

  1. Check the condition of the ignition coil G (visual inspection, resistance check)
  2. Inspect the wiring harness and connectors for damage or oxidation.
  3. Check the integrity of the coil control circuit (with a multimeter)
  4. If necessary, replace the ignition coil or repair the wiring harness
  5. Reset errors and check engine operation

Related codes

Error P0357 by Vehicle Brand