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AutoCodes - Generic - B13C3

B13C3 Code - LF Control Unit

- Code Popularity: 1,731 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B13C3?

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 LF Control Unit
  • LF Control Unit harness is open or shorted
  • LF Control Unit circuit poor electrical connection
  • Faulty Start Stop Unit
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How to Fix the DTC B13C3?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

DTC B13C3-04: LF CONTROL UNIT INTERNAL MALFUNCTION
DTC B13C3-09: LF CONTROL UNIT MALFUNCTION
DTC B13C3-16: LF CONTROL UNIT POWER SUPPLY VOLTAGE LOW INPUT
DTC B13C3-29: COMMUNICATION ERROR BETWEEN STRAT STOP UNIT AND LF CONTROL UNIT

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B13C3 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code B13C3 Description

With the communication between the start stop unit and LF control unit being performed normally, there is no response from the LF control unit even though there is the signal transmission request from the start stop unit to the LF control unit, and the LF state signal becomes low.

OBDII Code B13C3 - LF Control Unit - AutoCodes.com
B13C3 Code - LF Control Unit

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Code B13C3 comments

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