GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2002
🢒
Impala
🢒
HVAC
🢒
HVAC Systems - Manual
🢒 HVAC Schematics
Figure
1:
Compressor Control
Master Electrical Component List
Air Temperature Description and Operation
Blower Control
A/C/CRUISE, A/C FAN, CRUISE, PCM/BCM/CLSTR, and PCM (CRANK) Fuses
A/C/CRUISE, A/C FAN, CRUISE, PCM/BCM/CLSTR, and PCM (CRANK) Fuses
B/U LP, DIC/RKE, PWR DROP, and RH HTD ST Fuses, PWR SEATS Circuit Breaker
FRT PARK LP and REAR PARK LP Fuses
Junction Block - Underhood (Bottom) Bussing
A/C RLY (CMPR), AIR PMP RLY, BCM, CIG/AUX, EXT LTS, IGN SW, PCM, and WSW Fuses
Junction Block-Underhood (Top) Bussing
G100, G111, G113 (1 of 2), G117, and G151
G201 (1 of 2)
G201 (2 of 2)
AUX PWR, BRK SW, C/LTR, DRL/EXT LTS, HAZ SW, HVAC BLO, RT I/P#2. Spot Lamp-Left, and Spot Lamp-Right Fuses, DRL RLY Relay Fuses
DLC Schematics
Figure
2:
Blower Control
Master Electrical Component List
Air Delivery Description and Operation
Temperature Control
Compressor Control
A/C/CRUISE, A/C FAN, CRUISE, PCM/BCM/CLSTR, and PCM (CRANK) Fuses
AUX PWR, BRK SW, C/LTR, DRL/EXT LTS, HAZ SW, HVAC BLO, RT I/P#2. Spot Lamp-Left, and Spot Lamp-Right Fuses, DRL RLY Relay Fuses
G202
Figure
3:
Temperature Control
Master Electrical Component List
Air Temperature Description and Operation
Blower Control
A/C/CRUISE, A/C FAN, CRUISE, PCM/BCM/CLSTR, and PCM (CRANK) Fuses
A/C/CRUISE, A/C FAN, CRUISE, PCM/BCM/CLSTR, and PCM (CRANK) Fuses
G202
Compressor Control
G202
