Disconnected the battery Now air won’t blow cold. This light comes on blinks three times then goes off.
Jun 19, 2019 at 2:58 PM
Air conditioner not working after disconnecting the battery
2013 GMC ACADIA
LISAKAYE
- MEMBER
- 11 POSTS
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ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Good afternoon,
Why did you disconnect the battery?
Was the AC working prior to this?
I attached a wiring diagram for you to view. Check the two fuses listed for power on both sides with a test light or voltmeter.
Roy
Why did you disconnect the battery?
Was the AC working prior to this?
I attached a wiring diagram for you to view. Check the two fuses listed for power on both sides with a test light or voltmeter.
Roy
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
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Click here to log in and view diagram.
Jun 19, 2019 at 3:08 PM
Replaced the starter after that the battery wasn’t charged enough to crank. So has to charge the battery and it started with no issues. Yes, the air conditioned worked prior to this. Just after disconnect the battery and connected back the air blows but not cold.
Jun 19, 2019 at 3:44 PM
ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Does the compressor engage?
Roy
Roy
Jun 19, 2019 at 3:49 PM
No.
Jun 19, 2019 at 4:04 PM
ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Do you have a scan tool to check for codes in the A/C system?
Roy
Roy
Jun 19, 2019 at 4:08 PM
On the A/C compressor clutch relay 87 is hot. do I jump power from there to 30 to make clutch engage?
Jun 19, 2019 at 4:16 PM
Sorry my husband corrected me on that 30 is hot not 87.
Jun 19, 2019 at 4:18 PM
ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
30 is the hot wire and 87 goes to the compressor. You can jump it with a wire to test to see if the compressor works.
The control side, 86 and 85 are what controls the relay.
Roy
The control side, 86 and 85 are what controls the relay.
Roy
Jun 19, 2019 at 4:26 PM
When the jumper is put between the 2 it activates and shuts off the motor immediately.
Jun 19, 2019 at 4:35 PM
ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Between which 2 terminals?
Roy
Roy
Jun 19, 2019 at 4:47 PM
30 and 87.
Jun 19, 2019 at 5:16 PM
Could the battery have something to do with this? Because after we change the starter it would only crank in neutral. Then my husband charge the battery and and it crank in park like normal. Prior to this our air was putting out cold.It was when we hook battery back up is when it wouldn’t blow cold. So not sure if battery might not strong enough so the compressor can't kick on
Jun 19, 2019 at 5:22 PM
ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
If the motor shuts off then maybe the compressor is locked up.
If you jump 30 and 87 with the key on and engine off can you hear the compressor engage?
Roy
If you jump 30 and 87 with the key on and engine off can you hear the compressor engage?
Roy
Jun 19, 2019 at 5:41 PM
I got it scanned and the code is p0465.
Jun 19, 2019 at 5:53 PM
P0645, sorry.
Jun 19, 2019 at 5:54 PM
ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Possible issue posted below.
Roy
Roy
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Jun 20, 2019 at 3:41 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.