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AutoCodes - Generic - P1AC9

P1AC9 Code - HCM Service Calibration Fault

- Code Popularity: 1,582 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1AC9?

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 Hybrid Control Module (HCM)
  • Hybrid Control Module (HCM) harness is open or shorted
  • Hybrid Control Module (HCM) circuit poor electrical connection
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How to Fix the DTC P1AC9?

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.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1AC9 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 P1AC9 Description

Hybrid Control Module (HCM) The internal fault detection is handled inside the control module. No external circuits are involved.

OBDII Code P1AC9 - HCM Service Calibration Fault - AutoCodes.com
P1AC9 Code - HCM Service Calibration Fault

Need More Information on the Code?

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Information for Specific Makes

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Code P1AC9 comments

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