OBD code C0550 indicates a problem with the Transfer Case Shift Control Module (TCCM) in the AntiLock Brake System (ABS).
Symptoms include the ABS warning light and engine light being illuminated.
The issue is commonly caused by a faulty TCCM or related wiring harness issues.
It is a moderate concern.
To fix, inspect the TCCM module, wiring harness, and connectors for any damage or poor connections.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the c0550 OBD Code
The vehicle displays an illuminated ABS warning light on the dashboard.
- Symptoms: AntiLock Brake System (ABS) Warning Light ON.
- Engine Light ON (or Service Engine Soon Warning Light).
- Possible loss of communication with the Electronic Brake Control Module (EBCM).
- Difficulty engaging or disengaging the ABS system.
- Strange noises coming from the ABS pump or module.
- Brake pedal may feel spongy or hard to press.
Causes of the c0550 OBD Code
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Possible issues related to fault code C0550 include problems with the electronic brake control module.
- C0550 can be caused by a faulty Transfer Case Shift Control Module (TCCM).
- A Transfer Case Shift Control Module (TCCM) harness that is open or shorted.
- A Transfer Case Shift Control Module (TCCM) circuit with a poor electrical connection.
Fixing Error Code c0550 Step By Step
Address the issue by diagnosing and repairing the Electronic Control Unit (ECU) communication circuit.
- To fix OBDII code C0550, first, review the possible causes related to this code.
- Visually examine the wiring harness and connectors associated with the Electronic Control Unit (ECU) and the Electronic Brake Control Module (EBCM).
- 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, consider reprogramming the ECU and EBCM to ensure they are communicating correctly.
- If the problem persists, replacement of the ECU or EBCM may be necessary to resolve the C0550 fault code.
Cost Of Fixing c0550 Fault Code
Diagnosing and repairing fault code C0550 may involve inspecting and servicing the vehicle’s electronic brake control module.
The cost to diagnose and fix OBD code C0550 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour.
The total cost will vary based on shop rates, complexity of the issue, and any additional parts or services needed.
Details of the c0550 OBD Code
C0550 indicates a problem with the Electronic Control Unit (ECU) programming or configuration.
OBD code C0550 indicates a problem with the Electronic Control Unit (ECU) or the Body Control Module (BCM).
This code is often associated with a malfunction in the vehicle’s internal communication network, such as the Controller Area Network (CAN) bus.
The ECU or BCM triggers this code when it detects a communication fault within the network, leading to issues with various vehicle systems and components.
Mechanic’s Tech Notes
This section provides detailed information on diagnosing and repairing code C0550.
OBDII code C0550 indicates a problem with the Electronic Control Unit (ECU) or Transmission Control Module (TCM) communication circuit.
To diagnose, check TCM power and ground using a multimeter.
Use a scan tool to confirm TCM communication over the Controller Area Network (CAN) network.
Visually inspect wiring harnesses and connectors for damage, and check connector pins for corrosion or other issues.
Reflashing the TCM may be necessary to resolve the communication fault.
FAQ
OBD code C0550 indicates an issue with the Transfer Case Shift Control Module (TCCM). Symptoms include ABS and Engine warning lights. Check wiring and connectors for faults.
Common symptoms of OBD code C0550 include ABS warning light on, engine light on, caused by faulty TCCM or related wiring issues. Inspect and repair as needed.
Diagnose and repair OBD code C0550 by checking TCCM module, harness, and connections for faults. Inspect wiring for damage, corrosion, or poor connections.
Wrap Up
If your ABS warning light is illuminated and you retrieve OBDII code C0550, it may indicate a malfunction in the Electronic Control Unit (ECU) or a communication issue between the ECU and the ABS control module.
This could be caused by a faulty ECU, damaged wiring harness, or poor connections at the ECU or ABS module.
To address OBDII code C0550, start by inspecting the wiring harness for any visible damage or corrosion.
Check the connectors at the ECU and ABS module for tightness and cleanliness.
If no issues are found, consider testing the
