Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSDODGE AND RAM2010CHARGER SE, 5.7 TREPAIR AND DIAGNOSISHEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMS(HVAC SYSTEMS (ATC) - ELECTRICAL DIAGNOSTICS)STANDARD PROCEDUREHVAC SYSTEM TEST (ATC)DIAGNOSTIC TEST

2010 Dodge and Ram Charger SE, 5.7 T

Diagnostic Test

2010 Dodge and Ram Charger SE, 5.7 TSECTION Diagnostic Test

HVAC SYSTEM TEST
NOTE: Diagnose and repair all active DTCs before diagnosing and repairing stored DTCs.

Make a selection based on the symptom, condition, or DTC that you want to diagnose.

For Any Active DTC
- Refer to DIAGNOSTIC CODE INDEX for a complete list of all HVAC related DTCs.
Scan Tool Indicates HVAC Not Active On Bus
- Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing
Complete HVAC System Test
- Go to step 2
A/C System Performance Test
- Go to step 2
General System Operation AND Function Test
- Go to step 3
Actuator Calibration Test
- Go to step 4
A/C SYSTEM PERFORMANCE TEST
NOTE:
The following are prerequisites of the Cooldown Test. Verify each of the following before running the test:
- If active, diagnose and repair DTC B1031 or B1032 before proceeding. Refer to DIAGNOSTIC CODE INDEX for a complete list of HVAC related DTCs.
- Verify that the refrigerant system has an adequate charge. Check and repair as necessary before proceeding. Refer to Heating and Air Conditioning/Plumbing - Diagnosis and Testing .
- Verify that the blower motor operates correctly in all speeds. Diagnose and repair all blower related faults before proceeding.
- Verify that the work area ambient temperature is above 18.3°C (65°F) before proceeding. Move the vehicle to a warmer work area if necessary.
- Verify that the evaporator temperature is above 18.3°C (65°F) before proceeding.
- Verify that the A/C compressor is not running. If the A/C compressor is running, turn the A/C off and allow the evaporator to warm up before proceeding.
1. Once all of the prerequisites have been met, actuate the Cooldown Test by performing the following:
2. Start the engine.
3. With the scan tool in HVAC, select System Tests and then select Cooldown test.
  NOTE:
  The Cooldown Test can take up to two minutes to run. While the test is running, the A/C status indicator will flash. If the test passes, the A/C status indicator will stop flashing. However, if the test fails, both the A/C and EBL status indicators will flash alternately and an active DTC B10B2 will set. The status indicators will continue to flash until either a successful Cooldown Test is executed or until the vehicle is driven a specified number of miles or after 5 ignition cycles. In addition, DTC B10B2 will remain active until a successful Cooldown Test is executed. The test will stop running if any of the following occurs:
  - The ignition is turned off.
  - The A/C compressor is requested off.
  - DTC B1031 or B1032 sets during the test.
4. Allow the test to run to completion before proceeding.
5. With the scan tool, select View DTCs.
  Does the scan tool display any DTCs?
  
  Yes
  - Diagnose and Repair the DTC(s). Refer to DIAGNOSTIC CODE INDEX for a complete list of HVAC related symptoms. Run the Cooldown Test again after the repair is complete.
  No
  - As necessary, either Go to step 3, or 4, or Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
GENERAL SYSTEM OPERATION AND FUNCTION TEST
NOTE: If at anytime a DTC becomes active during this test, proceed to the conclusion question.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.