Climate Control Unit Inputs and Outputs
WARNING: This page is about a different car, the 2011 Honda CR-V, 2010 Honda CR-V, 2009 Honda CR-V, 2008 Honda CR-V, and 2007 Honda CR-V. However, it is still accessible from the selected car via links, so may be relevant.
CLIMATE CONTROL UNIT 36P CONNECTOR TERMINALS REFERENCE CHART
| Cavity | Wire color | Terminal name | Description | Signal | ||
|---|---|---|---|---|---|---|
| 1 | RED | Blower Transistor Control | Outputs blower power resistor gate voltage | With ignition switch ON (II) and blower OFF: 0 V. Voltage increases as blower speed increases | ||
| 2 | BLU | Blower Feedback | Feedback signal from blower power resistor | With ignition switch ON (II), or vehicle in ON mode, and fan switch at MIN: about 4 V. Voltage increases to about 12 V with fan switch at MAX | ||
| 3(1) | BLU | Audio-navigation Unit (CLK) | Inputs clock signal from NAVI | With ignition switch ON (II), or vehicle in ON mode: pulses (about 2.5 V) | ||
| 4(1) | RED | Audio-navigation Unit (SO) | Inputs NAVI communication data | With ignition switch ON (II), or vehicle in ON mode: pulses (about 2.5 V) | ||
| 5(1) | YEL | Audio-navigation Unit (SI) | Outputs NAVI communication data | With ignition switch ON (II), or vehicle in ON mode: pulses (about 2.5 V) | ||
| 6 | WHT | ACS | A/C Signal | |||
| 7 | BRN | Evaporator Temperature Sensor | Detects evaporator temperature sensor signal | With ignition switch ON (II): about 1.0-4.0 V (depending on evaporator temperature) | ||
| 9 | PUR | Sunlight Sensor | Detects sunlight sensor signal | With ignition switch ON (II) and sensor out of direct sunlight: 3 6V or more With ignition switch ON (II) and sensor in direct sunlight: 3.3 V or less | ||
| 10 | YEL | Outside Air Temperature Sensor | Detects outside air temperature sensor signal | With ignition switch ON (II): about 1.0-4.0 V (depending on outside air temperature). | ||
| 11 | LTBLU | In-car Temperature Sensor | Detects in-car temperature sensor signal | With ignition switch ON (II): about 1 0-4.0 V (depending on in-car temperature). | ||
| 12 | BLU | Mode control motor 4 | Mode control motor position feedback | With ignition switch ON (II), or vehicle in ON mode: about 0 V or about 5 V (depending on motor position) | ||
| 13 | LTBLU | S5V | Power source for sensors | With ignition switch ON (II): about 5.0 V | ||
| 14 | PUR | Mode control motor 3 | Mode control motor position feedback | With ignition switch ON (II), or vehicle in ON mode: about 0 V or about 5 V (depending on motor position) | ||
| 15 | LT GRN | Mode control motor 2 | Mode control motor position feedback | With ignition switch ON (II), or vehicle in ON mode: about 0 V or about 5 V (depending on motor position) | ||
| 16 | ORN | Mode control motor 1 | Mode control motor position feedback | With ignition switch ON (II), or vehicle in ON mode about 0 V or about 5 V (depending on motor position) | ||
| 18 | GRN | Illumination (-) | Detects illumination control signal | With combination light switch ON: voltage varies as dash lights brightness varies | ||
| 19 | ORN | Recirculation control motor | Outputs recirculation control motor potentiometer signal | |||
| 20 | WHT | Passenger's air mix control motor | Passenger's air mix control motor position feedback | With ignition switch ON (II), or vehicle in ON mode: between 0 5 V and 4.5 V (depending on motor position) | ||
| 21 | GRY | Driver's air mix control motor | Driver's air mix control motor position feedback | With ignition switch ON (II), or vehicle in ON mode: between 0.5 V and 4.5 V (depending on motor position) | ||
| 22 | LT GRN | Sensor ground | Common ground for sensors | Less than 0 5 V at all times | ||
| 24 | LT GRN | Rear window defogger relay | Input rear window defogger relay | |||
| 25 | BLK | Ground for climate control unit (G503) | Ground for control unit | Less than 0 5 V at all times | ||
| 26 | PNK | B-CAN | B-CAN communication line | With ignition switch ON (II), or vehicle in ON mode pulses (about 2 5V) | ||
| 27 | LT GRN | Mode control motor (VENT) | Drives mode control motor to VENT | With ignition switch ON (II), or vehicle in ON mode, and motor moving to VENT: battery voltage | ||
| 28 | GRN | Mode control motor (DEF) | Drives mode control motor to DEF | With ignition switch ON (II), or vehicle in ON mode, and motor moving to DEF: battery voltage | ||
| 29 | BRN | IG2 (Power) | IG2 Power source | With ignition switch ON (II): battery voltage | ||
| 30 | LTBLU | Driver's air mix control motor (COOL) | Drives driver's air mix control motor to COOL | With ignition switch ON (II), or vehicle in ON mode, and motor moving to COOL: battery voltage | ||
| 31 | PNK | Driver's air mix control motor (HOT) | Drives driver's air mix control motor to HOT | With ignition switch ON (II), or vehicle in ON mode, and motor moving to HOT battery voltage | ||
| 32 | WHT | Recirculation control motor (FRS) | Drives recirculation control motor to FRESH | With ignition switch ON (II), or vehicle in ON mode, and motor moving to FRESH: battery voltage | ||
| 33 | GRN | Recirculation control motor (REC) | Drives recirculation control motor to RECIRCULATE. | With ignition switch ON (II), or vehicle in ON mode, and motor moving to RECIRCULATE: battery voltage | ||
| 34 | BRN | Passenger's air mix control motor (COOL) | Drives passenger's air mix control motor to COOL | With ignition switch ON (II), or vehicle in ON mode, and motor moving to COOL: battery voltage | ||
| 35 | PUR | Passenger's air mix control motor (HOT) | Drives passenger's air mix control motor to HOT | With ignition switch ON (II), or vehicle in ON mode, and motor moving to HOT: battery voltage | ||
| 36 | GRY | Illumination (+) | Input voltage for illumination | With combination light switch ON. battery voltage | ||
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