OBD Guide

P124E

Cylinder 7 Injector High Control Circuit Shorted to Control Circuit

P124E is an OBD-II diagnostic trouble code meaning: Cylinder 7 Injector High Control Circuit Shorted to Control Circuit. Common causes: short circuit in injector control circuit, malfunction of the fuel injector of cylinder 7. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Misfire in cylinder 7
  • Check Engine light comes on
  • Reduced engine power

Causes

  • Short circuit in injector control circuit
  • Malfunction of the fuel injector of cylinder 7
  • Wiring harness damage
  • Problems in the engine control unit (ECU)
  • Corrosion of contacts or connectors

How to Fix

  1. Check the integrity of the injector control circuit
  2. Test the resistance of the cylinder 7 injector
  3. Inspect the wiring harness for damage
  4. Check connectors and contacts for corrosion
  5. If necessary, replace the nozzle or repair the wiring

Related codes

FAQ

What does the P124E code mean?

P124E is an OBD-II diagnostic trouble code that indicates: Cylinder 7 Injector High Control Circuit Shorted to Control Circuit

What causes a P124E error code?

The most common causes of P124E include: Short circuit in injector control circuit; Malfunction of the fuel injector of cylinder 7; Wiring harness damage; Problems in the engine control unit (ECU).

How do I fix a P124E diagnostic trouble code?

To fix P124E: Check the integrity of the injector control circuit. Test the resistance of the cylinder 7 injector. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P124E?

Yes, but get it checked soon

How much does it cost to fix P124E?

The estimated repair cost for P124E is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat