SPECIFICATIONS
| Description | Nm |
|---|---|
| Blower motor control module retaining bolts | 1 |
| Foot duct to cross car beam retaining bolt | 5 |
| Climate control assembly to cross car beam retaining bolts | 9 |
| Climate control module retaining bolts | 1 |
| Defrost vent/register blend door actuator retaining bolts | 1 |
| Evaporator pipe bracket retaining bolts | 1 |
| Evaporator housing retaining bolts | 1 |
| Footwell vent/duct blend door actuator retaining bolt | 1 |
| Heater core housing retaining bolts | 2 |
| Sunload sensor retaining bolt | 2 |
| Evaporator core pipes mounting bracket retaining bolts | 1 |
| Evaporator core pipes to thermostatic expansion valve retaining bolt | 5 |
| Thermostatic expansion valve retaining bolts | 3 |
A/C Compressor Torque
The automatic temperature control (ATC) module transmits refrigerant pressure and air conditioning (A/C) compressor current values to the engine control module (ECM) over the medium speed then high speed controller area network (CAN) bus, using the central junction box (CJB) as a gateway. The engine control module (ECM) uses these values to calculate the torque being used to drive the air conditioning (A/C) compressor. The engine control module (ECM) compares the calculated value with its allowable value and if necessary forces the automatic temperature control (ATC) module to inhibit the air conditioning (A/C) compressor by transmitting the 'ACClutchInhibit' controller area network (CAN) message. This forces the automatic temperature control (ATC) module to reduce the drive current to the air conditioning (A/C) compressor solenoid valve, which reduces refrigerant flow. This in turn reduces the torque required to drive the air conditioning (A/C) compressor.
By reducing the maximum air conditioning (A/C) compressor torque, the engine control module (ECM) is able to reduce the load on the engine when it needs to maintain vehicle performance or cooling system integrity.