Engine-Codes - Generic - C2312

C2312 Code - Power Source Control ECU Communication Line Malfunction

- Code Popularity: 7,838 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC C2312?

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 Transmission Control ECU Assembly
  • Faulty Power Source Control ECU
  • Transmission Control ECU harness is open or shorted
  • Transmission Control ECU circuit poor electrical connection
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How to Fix the DTC C2312?

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 C2312 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 C2312 Code Mean?

The Transmission Control ECU Assembly receives power switch condition signals (OFF / ACC / IG) from the Power Source Control ECU. The Transmission Control ECU Assembly outputs this Diagnostic Trouble Code (DTC) when it does not receive the signals.

C2312 Code - Power Source Control ECU Communication Line Malfunction

Need more Information on the Code?

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Code C2312 Information for Specific Makes

  • C2312 Hyundai Front Left Outlet Valve Malfunction
  • C2312 KIA Front Left Outlet Valve Malfunction
  • C2312 Lexus Power Source Control ECU Communication Line Malfunction
  • C2312 Toyota Power Source Control ECU Communication Line Malfunction

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