C0364 GMC Code - Front Axle System
Quick Answer
The front axle control circuit consists of an electric motor actuator that engages and disengages the front axle. Common causes include Faulty Front Axle Engagement Actuator, Front Axle Engagement Actuator harness is open or shorted, Front Axle Engagement Actuator circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C0364 GMC indicates Front Axle System.
- Common causes
- Common causes include Faulty Front Axle Engagement Actuator, Front Axle Engagement Actuator harness is open or shorted, Front Axle Engagement Actuator circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C0364 GMC Description
The front axle engagement actuator contains the following circuits: A Run/Crank Ignition 1 Voltage circuit, a Four-Wheel Drive Wheel Lock Indicator circuit, a Front Axle Actuator Control circuit, and a ground circuit.
When a shift to 4WD Auto, 4WD High, or 4WD Low is requested, the Transfer Case Control Module engages the front axle by grounding the front axle actuator control circuit through a current limiting driver.
This Diagnostic Trouble Code (DTC) will be set when a short to ground, short to voltage, or open circuit is detected.
What are the Possible Causes of the DTC C0364 GMC?
- Faulty Front Axle Engagement Actuator
- Front Axle Engagement Actuator harness is open or shorted
- Front Axle Engagement Actuator circuit poor electrical connection
- Faulty Transfer Case Control Module
How to Fix the DTC C0364 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C0364 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the C0364 GMC code?
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Information for Specific GMC Models
- C0364 2014 GMC Sierra — Front Axle System
- C0364 2015 GMC Sierra — Front Axle System
- C0364 2016 GMC Sierra — Front Axle System
- C0364 2017 GMC Sierra — Front Axle System
- C0364 2018 GMC Sierra — Front Axle System
Frequently Asked Questions about C0364 GMC Code
1. What does the OBDII code C0364 mean on a GMC vehicle?
The code C0364 indicates an issue with the front axle system, specifically related to the front axle actuator control circuit.
2. What are the common symptoms of the C0364 code on a GMC?
Common symptoms include the front axle failing to engage properly, the Service 4WD light illuminating, and potential issues with shifting into or out of four-wheel drive.
3. What causes the C0364 code on a GMC?
The code can be caused by a malfunctioning front axle actuator, damaged wiring or connectors, a faulty transfer case control module (TCCM), or corrosion in the electrical circuit.
4. How do you diagnose the C0364 code on a GMC?
Diagnosis involves scanning the vehicle for stored codes, inspecting the front axle actuator and wiring for damage or corrosion, and testing the actuator's electrical circuit for proper voltage and continuity.
5. Can I drive my GMC with the C0364 code?
While the vehicle may still be drivable, four-wheel-drive functionality could be compromised, which may affect performance in off-road or slippery conditions.
6. How do you fix the C0364 code on a GMC?
Repairs may include replacing the front axle actuator, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming or replacing the transfer case control module.
7. How much does it cost to repair the C0364 code on a GMC?
Repair costs vary depending on the issue but typically range from $150 to $500, including parts and labor.
8. Can a weak battery trigger the C0364 code on a GMC?
Yes, a weak or failing battery can cause electrical issues that may trigger this code. Always ensure the battery and charging system are functioning properly.
9. Does the C0364 code affect only four-wheel-drive GMC vehicles?
Yes, this code is specific to vehicles equipped with a four-wheel-drive system and relates to the front axle engagement.
10. Do I need specialized tools to repair the C0364 code on a GMC?
You may need a diagnostic scan tool to read and clear codes, a multimeter to test electrical circuits, and basic tools to access the front axle actuator and wiring.
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