Automatic climate control with filter (IHKR/F3)
Scheme 6450.5
|
A=X18155 | 26-pin, white |
B=X18156 | 26-pin, black |
C=X18157 | 26-pin, blue |
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Pin | Type | Description/Function | Connection |
1 | not used | ||
2 | E | Right heat exchanger temperature | Right heat exchanger sensor |
3 | E | Left heat exchanger temperature | Left heat exchanger sensor |
4 | E | Outside temperature | Outside temperature sensor |
5 | E | Evaporator temperature | Evaporator sensor |
6 | E | Setpoint, mixing air actuator | Mixing air actuator |
7 | E | Signal, independent ventilation | Relay box, independent heating/ventilation |
8 | E | Speedometer A signal | Instrument cluster |
9 | not used | ||
10 | E | Signal, independent heating | Relay box, independent heating/ventilation |
11 | not used | ||
12 | E | Terminal 58K | Light switch/lights |
13 | A | Supply voltage for function lights | IHKR/F3 push button unit |
14 | A | Supply voltage for mixing air actuator | Mixing air actuator |
15 | M | Ground for regulator in operating unit | IHKR/F3 operating unit |
16 | M | Ground for all sensors | All temperature sensors |
17 | M | Ground | Mixing air actuator |
18 | E | Push button unit lights | IHKR/F3 push button unit |
19 | not used | ||
20 | E | Signal, air condition ON | IHKR/F3 push button unit |
21 | E | Signal, recirculated air/AUC ON | IHKR/F3 push button unit |
22 | E | Signal, rear window defogger ON | IHKR/F3 push button unit |
23 | E | Function indicator, air conditioning ON | IHKR/F3 push button unit |
24 | E | Function indicator, rear window defogger ON | IHKR/F3 push button unit |
25 | E | Function indicator, AUC ON | IHKR/F3 push button unit |
26 | E | Function indicator, recirculated air ON | IHKR/F3 push button unit |
|
Pin | Type | Description/Function | Connection |
1 | M | Ground | Ground connection |
2 | not used | ||
3 | E | Interior temperature | Interior temperature sensor in IHKR/F3 operating unit |
4 | E | Setpoint, fresh air | IHKR/F3 operating unit |
5 | E | Setpoint, left blower | IHKR/F3 operating unit |
6 | E | Setpoint, right blower | IHKR/F3 operating unit |
7 | not used | ||
8 | E | Signal AUC ON | AUC control unit |
9 | A | Signal, air conditioning ON | Diode module |
10 | M | Ground | Ground connection |
11 | not used | ||
12 | E | Terminal 30 | Fuse |
13 | E | Terminal 30 | Fuse |
14 | not used | ||
15 | E | max. heating, right | IHKR/F3 operating unit |
16 | not used | ||
17 | not used | ||
18 | E | Signal | Relay box, independent heating/ventilation |
19 | not used | ||
20 | not used | ||
21 | not used | ||
22 | E | max. heating, left | IHKR/F3 operating unit |
23 | E | Terminal 15 | Fuse |
24 | not used | ||
25 | E | Terminal 61 | Unloader relay |
26 | E | Terminal 30 h | Generator |
|
Pin | Type | Description/Function | Connection |
1 | A | Voltage supply for actuators | all actuator motors |
2 | A | Voltage supply for actuators | all actuator motors |
3 | not used | ||
4 | not used | ||
5 | not used | ||
6 | A | Signal, recirculated air | Recirculated air flap motor |
7 | A | Signal, recirculated air | Recirculated air flap motor |
8 | A | Signal, recirculated air | Recirculated air flap motor |
9 | A | Signal, recirculated air | Recirculated air flap motor |
10 | A | Signal, fresh air | Fresh air flap motor |
11 | A | Signal, fresh air | Fresh air flap motor |
12 | A | Signal, fresh air | Fresh air flap motor |
13 | A | Signal, fresh air | Fresh air flap motor |
14 | A | Voltage supply for potentiometer | IHKR/F3 operating unit |
15 | A | RxD diagnosis line | Diagnostic connector |
16 | E/A | TxD diagnosis line | Diagnostic connector |
17 | not used | ||
18 | A | Signal, interior sensor blower | Interior sensor blower motor |
19 | A | Signal, auxiliary water pump | Auxiliary water pump relay |
20 | A | Signal, rear window defogger ON | Rear window defogger relay |
21 | not used | ||
22 | A | Signal, A/C compressor ON | Pressure switch B8y |
23 | A | Signal, air mixing | Mixing air flap motor |
24 | A | Signal, air mixing | Mixing air flap motor |
25 | A | Signal, air mixing | Mixing air flap motor |
26 | A | Signal, air mixing | Mixing air flap motor |