A/CCM Connections
| Pin # | Input / Output | Function | Specification |
|---|---|---|---|
| 1 (22-way) | Input | Ignition positive supply | With ign ON |
| 2 (22-way) | Input | Battery isolate supply | Activated when IGN ON and for 30 seconds after IGN OFF |
| 3 (22-way) | Input | Auxiliary ground | Auxiliary switch closed to ground |
| 4 (22-way) | Output | Auxiliary ground | Direct line to pin #3 |
| 5 (22-way) | Input | B+ | |
| 6 (22-way) | Input | Engine speed input | Open collector, 3 pulses per rev. |
| 7 (22-way) | Input | Electrical load drive inhibit | Active low signal from EMS |
| 8 (22-way) | Output | Sensor +5V | |
| 9 (22-way) | Output | Clutch request | Open collector R = 1KOHM, connected to IGN, activated high |
| 10 (22-way) | Input | Diagnostic L line | |
| 11 (22-way) | n/a | Not used | n/a |
| 12 (22-way) | Output | Ignition (+VE) to control panel | |
| 13 (22-way) | System ground | ||
| 14 (22-way) | Output | Ground to control panel | |
| 15 (22-way) | Output | Isolation relay | Activated when IGN ON and for 30 seconds after IGN OFF |
| 16 (22-way) | Input | Vehicle speed input | |
| 17 (22-way) | Input | Pressure switch | Ground for normal pressure. IGN+ for abnormal pressure |
| 18 (22-way) | Output | Aspirator motor (Motorized In-car Aspirator) | 0.05A at 12V, activated high during ON mode only |
| 19 (22-way) | Input | Sensor ground | |
| 20 (22-way) | Logic ground for diagnostic lines | ||
| 21 (22-way) | Output | Diagnostic K line | |
| 22 (22-way) | Output | Water pump ground | Sensing CCT current signal |
| 23 (12-way) | Output | Screen request to ECM | Open collector R = 57OHM, connected to IGN, activated low |
| 24 (12-way) | Output | CLOCK signal to control panel | Open collector R = 1KOHM, connected to IGN, activated high |
| 25 (12-way) | Output | DATA OUT signal to control panel | Open collector R = 1KOHM, connected to IGN, activated high |
| 26 (12-way) | Input | Compressor lock signal | |
| 27 (12-way) | Input | Ambient air temperature sensor | Voltage / temperature values |
| 28 (12-way) | Input | Heater matrix temperature sensor | Voltage / temperature values |
| 29 (12-way) | Input | DATA IN signal from control panel | |
| 30 (12-way) | Output | START signal to control panel | Open collector R = 1KOHM, connected to IGN, activated high |
| 31 (12-way) | Not used | ||
| 32 (12-way) | Input | Compressor lock select | Ign. voltage |
| 33 (12-way) | Input | In-car temperature sensor (Motorized In-car Aspirator) | Voltage / temperature values |
| 34 (12-way) | Input | Evaporator temperature sensor | Voltage / temperature values |
| 35 (16-way) | Input | Solar sensor | Voltage / temperature values |
| 36 (16-way) | Input | Centre vent servo motor feedback potentiometer | Resistance 6KOHM ±10% 0% closed - 1V, 100% open - 4V |
| 37 (16-way) | Input | RH air intake servo motor feedback potentiometer | Resistance 6KOHM ±10% 0% closed - 1V, 100% open - 4V |
| 38 (16-way) | Not used | ||
| 39 (16-way) | Input | Cool air bypass servo motor feedback potentiometer | Resistance 6KOHM ±10% 0% closed - 1V, 100% open - 4V |
| 40 (16-way) | Input | Coolant temperature signal | PWM signal |
| 41 (16-way) | Input | RH blower motor voltage feedback | |
| 42 (16-way) | Output | RH blower motor drive signal | 0V to 3V max. |
| 43 (16-way) | Input | Differential potentiometer | Resistance 10KOHM ±10%. Min. 1V, Max. 4V |
| 44 (16-way) | Input | Defrost servo motor feedback potentiometer | Resistance 6KOHM. ±10%. 0% closed - 1V, 100% open - 4V |
| 45 (16-way) | Input | LH air intake servo motor feedback potentiometer | Resistance 6KOHM ±10%. 0% closed - 1V, 100% open - 4V |
| 46 (16-way) | Not used | ||
| 47 (16-way) | Input | Foot servo motor feedback potentiometer | Resistance 6KOHM ±10%. 0% closed - 1V, 100% open - 4V |
| 48 (16-way) | Not used | ||
| 49 (16-way) | Input | LH blower motor voltage feedback | |
| 50 (16-way) | Output | LH blower motor drive signal | 0V to 3V max. |
| 51 (26-way) | Input | Compressor ON signal | B+ @ compressor ON |
| 52 (26-way) | Output | Water valve | 1amp at 12 volts |
| 53 (26-way) | Output | RH Blower motor relay | Load 105OHM at 12V IGN, activated low |
| 54 (26-way) | Output | Heated windshield relays | Load 36OHM at 12V IGN, activated low |
| 55 (26-way) | Output | Heated door mirror relay | Load 105OHM at 12V IGN, activated low |
| 56 (26-way) | Output | Defrost servo motor (+VE) | B+ when operated |
| 57 (26-way) | Output | Centre vent servo motor (+VE) | B+ when operated |
| 58 (26-way) | Output | LH air intake servo motor (+VE) | B+ when operated |
| 59 (26-way) | Output | RH air intake servo motor (+VE) | B+ when operated |
| 60 (26-way) | Not used | ||
| 61 (26-way) | Not used | ||
| 62 (26-way) | Output | Foot servo motor (+VE) | B+ when operated |
| 63 (26-way) | Output | Cool air bypass servo motor (+VE) | B+ when operated |
| 64 (26-way) | Output | RH High speed relay | Load 105OHM at 12V IGN, activated low |
| 65 (26-way) | Output | LH High speed relay | Load 105OHM at 12V IGN, activated low |
| 66 (26-way) | Output | LH Blower motor relay | Load 105OHM at 12V IGN, activated low |
| 67 (26-way) | Output | Water pump motor relay | Load 105OHM at 12V IGN, activated low |
| 68 (26-way) | Output | Heated backlight relay | Load 72OHM at 12V IGN, activated low |
| 69 (26-way) | Output | Defrost servo motor (-VE) | B+ when operated |
| 70 (26-way) | Output | Centre vent servo motor (-VE) | B+ when operated |
| 71 (26-way) | Output | LH air intake servo motor (-VE) | B+ when operated |
| 72 (26-way) | Output | RH air intake servo motor (-VE) | B+ when operated |
| 73 (26-way) | Not used | ||
| 74 (26-way) | Not used | ||
| 75 (26-way) | Output | Foot servo motor (-VE) | B+ when operated |
| 76 (26-way) | Output | Cool air bypass servo motor (-VE) | B+ when operated |