Engine-Codes - Generic - C1201

C1201 Code - Engine Control System Malfunction

- Code Popularity: 118,395 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 C1201?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Sequential Multiport Fuel Injection (SFI) System Problems
  • Check for other codes
  • Faulty Engine Control Module (ECM)

Code Tech Notes

If the C1201 code is combined with an Oxygen (O2) Sensor or Air Fuel (A/F) Ratio Sensor code, repair the O2 Sensor or A/F Sensor code first and clear the codes.

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How to Fix the DTC C1201?

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 C1201 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?

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

What Does the C1201 Code Mean?

If a malfunction in the engine control system is detected through the Control Area Network (CAN), the operations of Vehicle Stability Control (VSC) and Traction Control (TRAC) are prohibited by the fail-safe function. When the signals from the engine are input normally, the fail-safe is canceled, and the Diagnostic Trouble Code (DTC) is stored. The DTC will be set when the engine control system malfunction signal continues for 1 second or more.

C1201 Code - Engine Control System Malfunction

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Code C1201 Information for Specific Makes

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