Engine-Codes - Generic - C1109

C1109 Code - Power And Ground System

- Code Popularity: 46,433 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC C1109?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Anti-Lock Brake System (ABS) Module Actuator (Electrical / Control Unit)
  • ABS Module harness is open or shorted
  • ABS Module circuit poor electrical connection
  • Blown ABS Module fuse
  • Low battery voltage
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How to Fix the DTC C1109?

Check 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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the C1109 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the C1109 Code Mean?

The Anti-Lock Brake System (ABS) Module Actuator (Electrical / Control Unit) monitors the power supplies. The C1109 OBDII code is set when the ABS Module power supply voltage is lower than normal.

C1109 Code - Power And Ground System

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Code C1109 Information for Specific Makes

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