Code result
P2561
A/C Control Module Requested MIL Illumination
Moderate severity
What it means
The A/C / HVAC control module has requested the ECM to illuminate the malfunction indicator (MIL) because of an emissions-relevant fault on its side. The original fault is stored in the HVAC module — this code only signals that the ECM has honoured the request.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Internal fault in the HVAC module — read its DTCs
highOne of the most commonly reported causes for this code — check this first.
Related help
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