A/C Control Module Requested MIL Illumination

Where it lives

For P2561, start at the module the description names.

Check these first

• The A/C control module is requesting the lamp for a fault it detected
• A fault in the A/C system wiring or connectors
• A low refrigerant charge
• A failed A/C pressure sensor

What to do next

1. Scan the A/C control module for its own codes
2. Check the A/C system for a low refrigerant charge
3. Check the A/C pressure sensor signal
4. Inspect the A/C system wiring and connectors for damage
5. Replace the A/C control module if the wiring and sensors test good
6. Clear the code and retest

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