Hvac Control Unit Connector For Inputs and Outputs
| Connector Index |
|---|
| HVAC Control Unit Connector A (32P) |
| HVAC Control Unit Connector C (12P) |
HVAC Control Unit Connector A (32P)
| Cavity | Terminal name | Description | Signal |
|---|---|---|---|
| 1 | IG2 A/C | IG2 power source | With vehicle in ON mode: battery voltage |
| 2 | ILLUMI+ | Power source for illumination | With combination light switch ON: battery voltage |
| 3 | Not used | ------ | ------ |
| 4 | Not used | ------ | ------ |
| 5 | SENSOR 5V | Outputs sensor 5 V | With vehicle in ON mode: about 5.0 V |
| 6 | Not used | ------ | ------ |
| 7 | Not used | ------ | ------ |
| 8 | Not used | ------ | ------ |
| 9 | M COOL AS | Outputs to drive front air mix control motor to COOL side | With vehicle in ON mode and front air mix control motor moving to COOL: battery voltage |
| 10 | M HOT AS | Outputs to drive front air mix control motor to HOT side | With vehicle in ON mode and front air mix control motor moving to HOT: battery voltage |
| 11 | MDEF FR | Outputs to mode control motor A to HEAT side | With vehicle in ON mode and mode control motor A moving to HEAT: battery voltage |
| 12 | MVENT FR | Outputs to mode control motor A to VENT side | With vehicle in ON mode and mode control motor A moving to VENT: battery voltage |
| 13 | M-HEAT HD | Outputs to mode control motor B to HEAT side | With vehicle in ON mode and mode control motor B moving to HEAT: battery voltage |
| 14 | M-DEF HD | Outputs to mode control motor B to DEF side | With vehicle in ON mode and mode control motor B moving to DEF: battery voltage |
| 15 | M REC | Outputs to drive recirculation control motor to RECIRCULATE side | With vehicle in ON mode and recirculation control motor moving to RECIRCULATE: battery voltage |
| 16 | M FRS | Outputs to drive recirculation control motor to FRESH side | With vehicle in ON mode and recirculation control motor moving to FRESH: battery voltage |
| 17 | GND | Ground for HVAC control unit (G405) | With vehicle in ON mode: less than 0.2 V |
| 18 | SENSOR (COM) | Sensor ground | With vehicle in ON mode: less than 0.2 V |
| 19 | ILLUMI- (LED) | Detects illumination control signal | With combination light switch ON: changed voltage (depending on dashlights brightness controller) |
| 20 | PD SENSOR | A/C Pressure sensor signal | With A/C switch ON: about 0.7-4.6 V (depending on A/C pressure) |
| 21 | Not used | ------ | ------ |
| 22 | Not used | ------ | ------ |
| 23 | B-CAN_H | B-CAN_H communication signal | With vehicle in ON mode: pulses |
| Cavity | Terminal name | Description | Signal |
|---|---|---|---|
| 24 | B-CAN_L | B-CAN_L communication signal | With vehicle in ON mode: pulses |
| 25 | M HOT RR | Outputs to drive rear air mix control motor to HOT side | With vehicle in ON mode and rear air mix control motor moving to HOT: battery voltage |
| 26 | M COOL RR | Outputs to drive rear air mix control motor to COOL side | With vehicle in ON mode and rear air mix control motor moving to COOL: battery voltage |
| 27 | M-HEAT RR | Outputs to rear mode control motor to HEAT side | With vehicle in ON mode and rear mode control motor moving to HEAT: battery voltage |
| 28 | M-VENT RR | Outputs to rear mode control motor to VENT side | With vehicle in ON mode and rear mode control motor moving to VENT: battery voltage |
| 29 | R-BLW-V | Feedback signal of rear blower power transistor drain voltage | With vehicle in ON mode: about 0 V - battery voltage (depending on rear blower motor speed) |
| 30 | R-BLW-G | Outputs rear blower power transistor gate voltage | With vehicle in ON mode, and rear fan control button OFF: less than 0.2 VWith vehicle in ON mode, and rear fan control button ON: about 4.0 V - battery voltage (depending on rear blower motor control) |
| 31 | BLOWER (V) | Feedback signal of front blower power transistor drain voltage | With vehicle in ON mode: about 0 V - battery voltage (depending on front blower motor speed) |
| 32 | BLOWER (G) | Outputs front blower power transistor gate voltage | With vehicle in ON mode, and front fan control button OFF: less than 0.2 VWith vehicle in ON mode, and front fan control button ON: about 4.0 V - battery voltage (depending on front blower motor control) |
HVAC Control Unit Connector C (12P)
| Cavity | Terminal name | Description | Signal |
| 1 | Not used | ------ | ------ |
| 2 | AMDP AS | Detects potentiometer signal of front air mix control motor (door position) | With vehicle in ON mode: about 1.0-4.0 V (depending on front air mix control motor position) |
| 3 | MOD-P FR | Detects potentiometer signal of mode control motor A (door position) | With vehicle in ON mode: about 1.0-4.0 V (depending on mode control motor A position) |
| 4 | MOD-P HD | Detects potentiometer signal of mode control motor B (door position) | With vehicle in ON mode: about 1.74-4.0 V (depending on mode control motor B position) |
| 5 | FRS REC-P | Detects potentiometer signal of recirculation control motor (door position) | With vehicle in ON mode: about 1.0-4.0 V (depending on recirculation control motor position) |
| 6 | AMDP RR | Detects potentiometer signal of rear air mix control motor (door position) | With vehicle in ON mode: about 1.0-4.0 V (depending on rear air mix control motor position) |
| 7 | MOD-P RR | Detects potentiometer signal of rear mode control motor (door position) | With vehicle in ON mode: about 1.0-4.0 V (depending on rear mode control motor position) |
| 8 | Not used | ------ | ------ |
| 9 | Not used | ------ | ------ |
| 10 | Not used | ------ | ------ |
| 11 | TEVA | Inputs front evaporator temperature sensor signal | ------ |
| 12 | Not used | ------ | ------ |