Engine-Codes - Oldsmobile - C0379 OLDSMOBILE

C0379 OLDSMOBILE Code - Front Axle System Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|C0379 OLDSMOBILE code possible causes

  • Faulty Front Axle Motor Actuator
  • Front Axle Motor Actuator harness is open or shorted
  • Front Axle Motor Actuator circuit poor electrical connection

|How is the C0379 OLDSMOBILE 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 C0379 OLDSMOBILE code

Labor: 1.0

The cost to diagnose the C0379 OLDSMOBILE code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are C0379 OLDSMOBILE code possible symptoms?

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

|What is C0379 OLDSMOBILE code meaning?

The front axle control circuit consists of an electric motor actuator, which engages and disengages the front axle. The front axle actuator motor consists of a permanent magnetic motor, a worm gear controlled plunger, a front axle switch and an electronic control circuit, all within the actuator assembly.
The front axle actuator consists of the following circuits:
- The front axle control circuit, which is also connected to the transfer case shift control module
- The front axle switch circuit, which is also connected to the transfer case shift control module
- An ignition 3 voltage circuit
- A ground circuit
When a shift to AUTO 4WD, 4HI or 4LO is requested, the transfer case shift control module engages the front axle by grounding the front axle control circuit through a current limiting driver.
This DTC detects a short to ground, short to voltage or an open circuit.

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