Engine-Codes - Gmc - P124C GMC

P124C GMC - Injector 5 Positive Voltage Control Circuit Shorted to Control Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P124C GMC Possible Causes

  • Faulty Fuel Injector
  • Fuel Injector harness is open or shorted
  • Fuel Injector circuit poor electrical connection

How is the P124C GMC code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P124C GMC code

Labor: 1.0

The cost to diagnose the P124C GMC code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P124C GMC Meaning

The Engine Control Module (ECM) supplies voltage to each fuel injector on the injector high voltage supply circuits. The ECM energizes each fuel injector by grounding the high voltage control circuit of the fuel injector. The ECM monitors the status of the injector high voltage supply circuits and the fuel injector high voltage control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled.

More Information

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