AC not cooling, warning light on your vehicle? P2613 means A‑side refrigerant valve control circuit high—fix to avoid AC loss. Scan, replace or reprogram.

A/C blowing warm on your vehicle? Low signal from the refrigerant distribution valve reduces cooling and can damage the system. Scan and replace the valve.

A/C blows warm on your car? P2611 means the A refrigerant valve control circuit is open, losing cooling. Scan and replace or reprogram the valve.

Engine off timer performance warning on your vehicle? It can disrupt shutdown sequencing and safety functions. Scan the ECM/PCM, diagnose and reprogram ...

Intake Air Heater System Performance loss reduces heat and can overheat the engine in your vehicle. Scan P2609, test heater module, reprogram or replace.

Intake Air Heater B Circuit High on your vehicle? Overheating can damage the heater and cut cabin heat—scan P2608, test the circuit, and reprogram.

Intake Air Heater B circuit low on your vehicle cuts cabin heat and may trigger HVAC warnings—scan P2607, test the heater circuit, or replace module.

Your vehicle cabin stays cold—P2606 means the Intake Air Heater B circuit is out of range, risking heater loss. Scan, reprogram or replace module.

P2605 (Intake Air Heater B circuit/open) causes air warning in your vehicle, risking heater loss. Scan, test the heater circuit, then repair or replace.

Your vehicle’s intake air heater A circuit is out of range—cabin heat drops and engine load rises. Scan, test the heater and reprogram or replace the mo...