The OBD code U0422 for Chevrolet indicates a communication error between the Body Control Module (BCM) and the rest of the vehicle’s network.
Symptoms include the Engine Light being ON.
This issue is commonly caused by a faulty BCM, open or shorted BCM harness, or poor electrical connections.
It is important to visually inspect the wiring harness and connectors for any damage or corrosion to resolve this problem.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
Symptoms of the Chevrolet u0422 OBD Code
The Chevrolet U0422 fault code indicates a communication problem with the body control module.
- Symptoms: Service StabiliTrak warning light may illuminate.
- Service Traction Control warning light may come on.
- Loss of communication with the body control module.
- Erratic shifting from the transmission.
- Difficulty starting the vehicle.
Causes of the Chevrolet u0422 OBD Code
Possible triggers for Chevrolet U0422 include communication issues within the body control module network.
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- U0422 can be caused by a faulty Body Control Module (BCM).
- A Body Control Module harness that is open or shorted.
- A Body Control Module circuit with a poor electrical connection.
Fixing Chevrolet Error Code u0422 Step By Step
Resolve Chevrolet U0422 by inspecting and repairing the communication network between modules.
- To fix the Chevrolet OBDII code U0422, start by reviewing the possible causes mentioned above.
- Visually examine the wiring harness and connectors related to the ABS control module.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If no visible issues are found, proceed to test the ABS control module for proper operation.
- Consider reprogramming or replacing the module if necessary to resolve the U0422 fault code.
Cost Of Fixing Chevrolet u0422 Fault Code
The repair for Chevrolet U0422 may involve diagnosing and fixing issues with the communication network.
The cost to diagnose and fix Chevrolet OBD code U0422 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour, so the total cost could be between $75 and $150. The final cost may vary based on shop rates and the complexity of the diagnostic and repair process.
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Details of the Chevrolet u0422 OBD Code
The Chevrolet U0422 code indicates a communication problem with the body control module.
Chevrolet OBD code U0422 means Invalid Data Received From Body Control Module.
This code is triggered by the Engine Control Module (ECM) when it detects that the data received from the Body Control Module (BCM) is invalid or not within the expected range.
The BCM is responsible for controlling various body functions such as interior lighting, power windows, and door locks.
When the ECM receives incorrect data from the BCM, it sets code U0422 to indicate a communication issue between the two modules.
Mechanic’s Tech Notes
For Chevrolet code U0422, check for communication issues with the body control module.
To diagnose and fix OBDII code U0422 in a Chevrolet, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.
Verify TCM communication over the Controller Area Network (CAN) network with a scan tool.
If communication issues are detected, reprogramming or reflashing the TCM may be necessary.
Additionally, visually inspect the wiring harness and connectors for any damage, and ensure connector pins are not broken, bent, pushed out, or corroded.
This thorough inspection will help identify and address the root cause of the U0422 fault code.
FAQ
OBD code U0422 in a Chevrolet indicates a fault with the Body Control Module (BCM). Check BCM, harness, and connections for issues.
To diagnose code U0422 in a Chevrolet, check for Engine Light ON. Possible causes include faulty BCM, open/shorted harness, poor electrical connection. Inspect wiring and connectors for damage.
Inspect Body Control Module (BCM), harness, and connectors for U0422 code in Chevrolet. Check for faults, poor connections, or damage. Repair as needed.
Wrap Up
If your Chevrolet is displaying OBD code U0422 along with ABS or traction control warning lights, it may indicate a communication error between the vehicle control modules.
This could be caused by faulty wheel speed sensors, damaged wiring harnesses, or a malfunctioning electronic brake control module.
To address Chevrolet U0422, start by inspecting the wheel speed sensor connectors and wiring for any signs of damage or corrosion.
Test the wheel speed sensors for proper operation using a multimeter and replace any faulty components.
Additionally, ensure all control module connections are secure and free of debris.
