Operation CHARM: Car repair manuals for everyone.

Climate Control Components, Engine Compartment

Automatic climate control
- After completing climate control system repair work, erase Diagnostic Trouble Code (DTC) memory and perform basic setting Repair Group 01
- Refrigerant system components, Description and Operation
- Vacuum hose layout, Vacuum and Vapor Hose Diagrams
- Cooling system performance, Testing and Inspection
- For electrical checks of all components marked with 1), Description and Operation
- Components marked with a 2) are triggered during output Diagnostic Test Mode (DTM), Testing and Inspection








1 - Heater box
2 - Evaporator
- Discharge A/C refrigerant system before removing
3 - Condenser
- Discharge A/C refrigerant system before removing
- For improved accessibility to ribbed belt, swing condenser and radiator forward.
4 - Compressor
- Discharge A/C refrigerant system before removing
5 - Auxiliary relay panel I with Data Link Connectors (DLC)
6 - Fresh air/recirculating flap two-way valve -N63- 21
7 - Fresh air flap 21
8 - Fresh air intake duct temperature sensor -G89- 1)
9 - A/C refrigerant low pressure switch -F73-
10 - Control module for fresh air blower -J126- 2)
11 - a/c Engine Coolant Temperature (ECT) sensor-G110- 1)
- Installed on 2.22 liter 5-cylinder (S4/S6) engine only; not installed on 2.8 liter V6 engine
- Before removing, loosen cap on coolant expansion tank to release cooling system pressure
12 - Not shown
13 - Evaporator water drain hose with valve

- Route nose straight (vertical) and kink-free
- Ensure hose connections are tight and sealed
- Valve must be clean and free of dirt, wax, or undercoating
14 - Engine coolant two-way vacuum valve -N147- 2)
15 - Fresh air blower ambient temperature sensor -G109- 1)
16 - A/C refrigerant high pressure switch -F118-
17 - A/C refrigerant high pressure switch -F23-
18 - Outside air temperature sensor -G17- 1)
19 - A/C compressor speed sensor -G111-
- Discharge A/C refrigerant system before removing
20 - A/C clutch -N25- 2)
21 - Fresh air blower -V2- 2)
22 - Vacuum check valve and reservoir
23 - Engine coolant shutoff valve 2)
- Closes when vacuum is applied
24 - Temperature regulator flap motor -V68-2) with position sensor -G92-
- Air flap locking clip must be installed correctly.