Engine-Codes - Generic - B11D3

B11D3 - A/C Cooldown Test Performance Compressor Not Engaged

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

B11D3 Possible Causes

  • A/C System Leak
  • Faulty A/C Heater Module
  • A/C Heater Module lost communication with Powertrain Control Module (PCM)

How is the B11D3 code repair?

Start by checking 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's pins.

What is the cost to diagnose the B11D3 code

Labor: 1.0

The cost to diagnose the B11D3 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

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

B11D3 Meaning

The A/C Heater Module receives a BUS message from the Powertrain Control Module (PCM) that the compressor is not engaged when it is requested.

More Information

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Information for specific makes

  • B11D3 CHRYSLER A/C Cooldown Test Performance Compressor Not Engaged
  • B11D3 DODGE A/C Cooldown Test Performance Compressor Not Engaged
  • B11D3 JEEP A/C Cooldown Test Performance Compressor Not Engaged
  • B11D3 RAM A/C Cooldown Test Performance Compressor Not Engaged

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