AC Climate Control Not Working
Thread Starter
1st Gear
Joined: Jul 2017
Posts: 1
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AC Climate Control Not Working
My AC isn't functioning in my 2005 Acura TL. When I turn on the AC the compressor isn't kicking on. I ran the self diagnostic on the system and can up with the "Q" code. Can anyone shoot me in the right direction with this and let me know what this signifies? Thanks.
-DRated.
-DRated.
Three Wheelin'
Joined: Apr 2016
Posts: 1,552
Likes: 498
Q code should be unrelated to compressor not running.
Some info in the spoiler, in case if you don't have service manual :
Why compressor might not run, what to check :
1. System low on charge : ac will be on in car, compressor and both radiator fans are not running
2. Fan is running, compressor not : clutch/coil in compressor bad, or wire giving power to it
3. Relay, fuse. Check fuse, switch relay with different one.
If you can recharge it for low/no charge then do it (proper vacuum way, correct amount of refrigerant etc.)
You can manually jump compressors relay to test if clutch is working. Only for a second tho, as you can damage the system.
Some info in the spoiler, in case if you don't have service manual :
Spoiler
1. System low on charge : ac will be on in car, compressor and both radiator fans are not running
2. Fan is running, compressor not : clutch/coil in compressor bad, or wire giving power to it
3. Relay, fuse. Check fuse, switch relay with different one.
If you can recharge it for low/no charge then do it (proper vacuum way, correct amount of refrigerant etc.)
You can manually jump compressors relay to test if clutch is working. Only for a second tho, as you can damage the system.
Intermediate
Joined: Feb 2012
Posts: 44
Likes: 6
From: NOVA
DTC (Temperature Indicator Segment)
Detection Item
A
An open in the in-car temperature sensor circuit
B
A short in the in-car temperature sensor circuit
C
An open in the outside air temperature sensor circuit
D
A short in the outside air temperature sensor circuit
E
An open in the sunlight sensor circuit
F
A short in the sunlight sensor circuit
G
An open in the evaporator temperature sensor circuit
H
A short in the evaporator temperature sensor circuit
I
An open in the driver's air mix control motor circuit
J
A short in the driver's air mix control motor circuit
K
A problem in the driver's air mix control linkage, door, or motor
L
An open in the passenger's air mix control motor circuit
M
A short in the passenger's air mix control motor circuit
N
A problem in the passenger's air mix control linkage, door, or motor
O
An open or short in the driver's mode control motor circuit
P
A problem in the driver's mode control linkage, doors, or motor
Q
An open or short in the passenger's mode control motor circuit
R
A problem in the passenger's mode control linkage, doors, or motor
S
A problem in the blower motor circuit
Detection Item
A
An open in the in-car temperature sensor circuit
B
A short in the in-car temperature sensor circuit
C
An open in the outside air temperature sensor circuit
D
A short in the outside air temperature sensor circuit
E
An open in the sunlight sensor circuit
F
A short in the sunlight sensor circuit
G
An open in the evaporator temperature sensor circuit
H
A short in the evaporator temperature sensor circuit
I
An open in the driver's air mix control motor circuit
J
A short in the driver's air mix control motor circuit
K
A problem in the driver's air mix control linkage, door, or motor
L
An open in the passenger's air mix control motor circuit
M
A short in the passenger's air mix control motor circuit
N
A problem in the passenger's air mix control linkage, door, or motor
O
An open or short in the driver's mode control motor circuit
P
A problem in the driver's mode control linkage, doors, or motor
Q
An open or short in the passenger's mode control motor circuit
R
A problem in the passenger's mode control linkage, doors, or motor
S
A problem in the blower motor circuit