Air conditioner not.working
After replacing tipm my air conditioner is no longer working. Replace relay, its fully.charged but.still doesnt work
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If the A/C stopped working right after replacing the TIPM, the issue is likely related to power, programming, or communication rather than the refrigerant charge itself.
A few things to check:
- Make sure the new TIPM is the correct part number and properly programmed for the vehicle
- Check all A/C-related fuses again, even if they look good visually
- Verify the compressor clutch is getting power when the A/C is turned on
- Scan for trouble codes because some TIPM replacements can trigger communication or sensor issues
- Check the pressure switch and A/C compressor connector for loose wiring during the repair
- If the radiator fan is not coming on, the A/C may also stay disabled
Since you already replaced the relay and confirmed the system is charged, I would focus on electrical diagnosis next. A multimeter or scan tool will help much more than replacing more parts randomly.
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door iRobot
Hi @kathy21141
As you mentioned replacing the tipm, I assume that the air con is in a motor vehicle.
If this is correct, what is the make, model and year of the vehicle?
Moderator.
door jayeff
@jayeff 2019 dodge grand caravan
door Kathy
@kathy21141
Does the blower motor work when you turn on the air con?
Can you hear the compressor clutch operate when you turn on the air con - with the engine idling there should be a clunk sound as an electric clutch engages the compressor pulley so that the serpentine belt turns the compressor?
door jayeff