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Heater Performance: Notes

WARNING: This page is about a different car, the 2010 Dodge Charger and 2010 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

See appropriate Cooling article before performing the following tests. Check the engine coolant level and flow, engine coolant reserve/recovery system operation, accessory drive belt condition and tension, radiator air flow and the fan drive operation. Perform the A/C System Performance Test, which is found within the HVAC System Test. Refer to DTC-Based Diagnostics/HVAC - Standard Procedure . If any Diagnostic Trouble Codes (DTCs) are found in the A/C-heater control or the Powertrain Control Module (PCM), repair as necessary.

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