RAM 2500 Truck 2WD V8-5.7L VIN D (2004)
Test 3 - 4
SYMPTOM
HVAC SYSTEM TEST
POSSIBLE CAUSES
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Attempt to communicate with the PCM
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Check for HVAC related DTCs in the PCM
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Check for active HVAC DTCs and system test fault messages
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Check for HVAC related DTCs in the PCM
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Manual A/C system test
Horn
