TEMPERATURE CONTROL
If the heater outlet air temperature cannot be adjusted with the temperature control on the A/C-heater control, the following could require service
- Inoperative A/C-heater control
- Inoperative blend door actuator
- Inoperative, obstructed or improperly installed blend-air door
- Improper engine coolant temperature
| Item | Description | Notes |
|---|---|---|
| A/C Compressor | Denso 6SEU16 | ND-8 PAG oil |
| Freeze-up Control | Evaporator temperature sensor | Input to A/C-heater control, HVAC housing mounted, sets compressor to destroke 2° C (36° F) below evaporator target temperature (minimum 5° C (41° F)) and activates compressor when within 1° C (34° F) of evaporator target temperature |
| Low psi Control | A/C pressure transducer | Input to PCM/ECM, discharge line mounted, sets compressor to destroke below 200 kPa (29 psi), activates compressor above 234 -262 kPa (34 - 38 psi) |
| High psi Control | A/C pressure transducer | Input to PCM/ECM, discharge line mounted - compressor to destroke above 3130 kPa (454 psi) and below 200 kPa (29 psi) |
| R-134a Refrigerant Charge Capacity | 0.454 kg (1.0 lbs.) | Also see A/C Underhood Specification Label located in the engine compartment |