OBD code C1109 indicates a fault in the AntiLock Brake System (ABS) Module Actuator.
Symptoms include the ABS Warning Light and Engine Light being illuminated.
Causes may include a faulty ABS Module Actuator, open/shorted ABS Module harness, poor electrical connections, blown fuse, or low battery voltage.
This issue should be addressed promptly to ensure safe braking operation.
A possible fix involves inspecting and repairing any damaged wiring or connectors related to the ABS Module Actuator.
| 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 c1109 OBD Code
The vehicle displays an ABS warning light on the dashboard.
- When OBD code C1109 occurs, symptoms may include: AntiLock Brake System (ABS) Warning Light ON.
- Engine Light ON (or Service Engine Soon Warning Light).
- Possible loss of ABS functionality.
- Brake pedal may feel different during braking.
- Unusual noises coming from the ABS system.
Causes of the c1109 OBD Code
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Possible triggers for fault code C1109 include issues with the ABS pump motor circuit.
- C1109 can be caused by a faulty AntiLock Brake System (ABS) Module Actuator (Electrical / Control Unit).
- An open or shorted ABS Module harness.
- Poor electrical connection in the ABS Module circuit.
- A blown ABS Module fuse.
- Low battery voltage.
Fixing Error Code c1109 Step By Step
To address fault code C1109, inspect the ABS wheel speed sensor for potential issues.
- To fix OBDII code C1109, first, review the possible causes related to this code.
- Visually examine the wiring harness and connectors associated with the ABS system.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Ensure all connections are secure and free of corrosion.
- Test the ABS module for proper operation and communication.
- Reset the ABS module if necessary.
- Replace the ABS module if it fails testing or communication is not restored after a reset.
Cost Of Fixing c1109 Fault Code
Diagnosing and repairing fault code C1109 may involve inspecting and replacing the ABS pump motor circuit.
The cost to diagnose and fix OBD code C1109 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour, so the general cost could be between $75 and $150. Factors like shop rates and complexity can affect the final cost.
Details of the c1109 OBD Code
C1109 indicates a fault with the ABS pump motor circuit.
OBD code C1109 means ABS Power Supply Voltage Failure.
This code is triggered by the Antilock Braking System (ABS) module when it detects a voltage supply issue within the ABS system.
The ABS module monitors the voltage supply to ensure proper operation of the ABS components and sensors.
When a voltage failure is detected, the C1109 code is set to indicate the problem with the power supply to the ABS system.
Mechanic’s Tech Notes
Code C1109 relates to a fault in the ABS pump motor circuit.
To diagnose OBDII code C1109, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.
Verify TCM communication over the Controller Area Network (CAN) using a scan tool.
If the TCM does not respond, reprogramming or reflashing may be necessary.
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 any issues causing the C1109 fault code.
FAQ
OBD code C1109 indicates a fault in the AntiLock Brake System (ABS) Module Actuator. Check wiring, connectors, and components for damage or poor connection.
Common symptoms of OBD code C1109 include ABS Warning Light and Engine Light ON. Causes may be a faulty ABS module actuator or wiring issues. Fix: Inspect and repair affected components.
Diagnose and repair OBD code C1109 by checking ABS module actuator, harness, connections, fuse, and battery voltage. Inspect wiring for damage or corrosion.
Wrap Up
If your ABS warning light is illuminated and you retrieve OBDII code c1109, it may indicate a fault in the ABS hydraulic unit motor relay circuit.
This could be caused by a defective ABS hydraulic unit motor relay, damaged wiring, or poor electrical connections.
To address OBDII code c1109, start by inspecting the wiring harness and connectors related to the ABS hydraulic unit motor relay circuit.
Look for any signs of damage, corrosion, or loose connections.
Test the ABS hydraulic unit motor relay and replace it if necessary to resolve the issue.
