Climate Control Unit Inputs and Outputs
CONNECTOR A
| Cavity | Wire color | Terminal name | Description | Signal | ||
|---|---|---|---|---|---|---|
| 1 | WHT | + B BACK UP | Battery back up power supply | Battery voltage | ||
| 2(1) | YEL | AC-SI | Outputs audio-navigation communication data | - | ||
| 3 | PNK | IG2 | IG2 Power supply | With ignition switch ON (II): battery voltage | ||
| 4 | LT GRN | B-CAN | B-CAN communication line | - | ||
| 5 | LT BLU | Tr | Inputs in-car temperature sensor signal | - | ||
| 6 | BLU | S5V | Power source for humidity sensor, A/C pressure sensor, and air mix control motor (driver's, passenger's, and rear) | With ignition switch ON (II): about 5 V | ||
| 8 | GRN | S-COM | Ground exclusive for sensor | Less than 0.2 V at all times | ||
| 9 | BLU | BLW-V (F) | Feedback signal of front power transistor drain voltage | With ignition switch ON (II): battery voltage (depending on blower motor speed) | ||
| 10 | RED | BLW-G (F) | Outputs front power transistor gate voltage | Fan switch to MAX: about 12 V Fan switch to MIN: about 4 V |
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| 11 | PUR | AMD-P (D) | Outputs driver's air mix control motor potentiometer signal | Drive on COOL side: about 1.5 V Drive on HOT side: about 4.5 V |
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| 12 | PNK | M-HOT (D) | Drives driver's air mix control motor on the HOT side | Drive on HOT side: battery voltage | ||
| 13 | LT BLU | M-COOL (D) | Drives driver's air mix control motor on the COOL side | Drive on COOL side: battery voltage | ||
| 14 | LT GRN | M-HOT (P) | Drives passenger's air mix control motor on the HOT side | Drive on HOT side: battery voltage | ||
| 15 | YEL | M-COOL (P) | Drives passenger's air mix control motor on the COOL side | Drive on COOL side: battery voltage | ||
| 16 | GRN | M-DEF (F) | Front mode control motor on the DEF side | Drive on DEF side: battery voltage | ||
| 17 | ORN | M-VENT(F) | Front mode control motor on the VENT side | Drive on VENT side: battery voltage | ||
| 18 | YEL | FRS | Recirculation control motor on the FRESH side | Drive on FRESH side: battery voltage | ||
| 19 | ORN | REC | Recirculation control motor on the RECIRCULATE side | Drive on RECIRCULATE side: battery voltage | ||
| 21(1) | BLU | AC-CLK | Audio-navigation communication data clock | - | ||
| 22(1) | RED | AC-SO | Inputs audio-navigation communication data | - | ||
| 23 | LT BLU | ILL+ | Power source for illumination | With lighting switch ON: battery voltage | ||
| 24 | BRN | Teva (F) | Inputs front evaporator temperature sensor signal | - | ||
| 25 | PUR | ACC | ACC power supply | With ignition switch ACC (I): battery voltage | ||
| 26 | LT GRN | Pd | A/C Pressure sensor signal | With A/C switch ON: about 0.4- 4.8 V (depending on A/C pressure) | ||
| 27 | YEL | Hum | Inputs humidity sensor signal | - | ||
| 28 | PNK | Tarn | Inputs outside air temperature sensor signal | - | ||
| 29 | PUR | Tsun | Inputs sunlight sensor signal | - | ||
| 30 | BLU | AMD-P (P) | Outputs passenger's air mix control motor potentiometer signal | Drive on COOL side: about 1.5 V Drive on HOT side: about 4.5 V |
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| 31 | WHT | MODE 1 | Inputs front mode control motor signal | - | ||
| 32 | LT GRN | MODE 2 | Inputs front mode control motor signal | - | ||
| 33 | PUR | MODE 3 | Inputs front mode control motor signal | - | ||
| 34 | BLU | MODE 4 | Inputs front mode control motor signal | - | ||
| 35 | WHT | MODE 1 | Recirculation control motor position feedback | - | ||
| 36 | BLK | MODE 2 | Recirculation control motor position feedback | - | ||
| 37 | BLK | GND | Climate control unit ground (G506) | Less than 0.2 V at all times | ||
| 38 | GRN | MODE 3 | Recirculation control motor position feedback | - | ||
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CONNECTOR B
| Cavity | Wire color | Terminal name | Description | Signal |
|---|---|---|---|---|
| 1 | GRN | M-COOL (R) | Rear air mix control motor on the COOL side | Drive on COOL side: battery voltage |
| 2 | PNK | M-HOT (R) | Rear air mix control motor on the HOT side | Drive on HOT side: battery voltage |
| 3 | YEL | M-HEAT (R) | Rear mode control motor on the HEAT side | Drive on HEAT side: battery voltage |
| 4 | BLK | M-VENT (R) | Rear mode control motor on the VENT side | Drive on VENT side; battery voltage |
| 5 | PUR | AMD-P (R) | Outputs rear air mix control motor potentiometer signal | Drive on COOL side: about 0.5 V Drive on HOT side: about 4.5 V |
| 6 | LT BLU | Teva(R) | Inputs rear evaporator temperature sensor signal | - |
| 8 | BLU | AUDIO DATA | Communication to audio unit (audio display data) | - |
| 11 | ORN | AC BUS RX | Communication to rear panel | - |
| 12 | GRN | AC BUS TX | Communication to rear panel | - |
| 13 | RED | BLW-V (R) | Feedback signal of rear power transistor drain voltage | With ignition switch ON (II): battery voltage (depending on blower motor speed) |
| 14 | BLU | BLW-G (R) | Outputs rear power transistor gate voltage | Fan switch to MAX: about 10 V Fan switch to MIN: about 2 V |