Engine-Codes - Generic - C1838

C1838 Code - Charging System Fault

- Code Popularity: 3,635 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 C1838?

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 Alternator
  • Alternator harness is open or shorted
  • Alternator circuit poor electrical connection
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How to Fix the DTC C1838?

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 C1838 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 C1838 Code Mean?

The Anti-Lock Brake System (ABS) Module monitors the Charging System. The ABS Module sets the OBDII code when the Charging System is not to factory specifications.

C1838 Code - Charging System Fault

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