OBD Guide
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P124F

Cylinder 8 Injector High Control Circuit Shorted to Control Circuit

P124F is an OBD-II diagnostic trouble code meaning: Cylinder 8 Injector High Control Circuit Shorted to Control Circuit. Common causes: damage to the injector wiring harness, cylinder 8 injector malfunction. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Power Loss
  • Misfire in cylinder 8
  • Check Engine light comes on

Causes

  • Damage to the injector wiring harness
  • Cylinder 8 injector malfunction
  • Problems with the engine control unit (ECU)
  • Short circuit in control circuit

How to Fix

  1. Check the integrity of the injector wiring harness
  2. Check the resistance of the injector of cylinder 8
  3. Inspect connectors and contacts for corrosion
  4. Replace the injector if necessary
  5. Check the operation of the engine control unit (ECU)

Related codes

P124EP1250P1251

FAQ

What does the P124F code mean?

P124F is an OBD-II diagnostic trouble code that indicates: Cylinder 8 Injector High Control Circuit Shorted to Control Circuit

What causes a P124F error code?

The most common causes of P124F include: Damage to the injector wiring harness; Cylinder 8 injector malfunction; Problems with the engine control unit (ECU); Short circuit in control circuit.

How do I fix a P124F diagnostic trouble code?

To fix P124F: Check the integrity of the injector wiring harness. Check the resistance of the injector of cylinder 8. Inspect connectors and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P124F?

Yes, but get it checked soon

How much does it cost to fix P124F?

The estimated repair cost for P124F is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat