Engine-Codes - Generic - P1654

P1654 Code - Instrumentation Control Module System Malfunction

- Code Popularity: 55,979 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 P1654?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Check engine oil level
  • Faulty Coolant Temperature Sensor
  • Coolant Temperature Sensor harness is open or shorted
  • Coolant Temperature Sensor circuit poor electrical connection
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How to Fix the DTC P1654?

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 P1654 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 P1654 Code Mean?

The Diagnostic Trouble Code (DTC) P1654 means that the Instrumentation Control Module must be check for codes. Check codes in the Instrumentation Control Module and perform the repairs for each code. Common problems are the Engine Oil Level and Coolant Temperature Sensor.

P1654 Code - Instrumentation Control Module System Malfunction

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Code P1654 Information for Specific Makes

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