Connector Locations

Instrument Cluster Multi-Pin Connector Assignments

32 pin multi-connector -T32a-, blue







1 - Terminal 15 - positive (ignition on)
2 - Indicator lamp for turn signal, right
3 - Output signal 1 from electronic speedometer
4 - Open
5 - Fuel gauge
6 - Airbag Malfunction Indicator Lamp (MIL)
7 - Terminal 31 - sensor/sender Ground (GND)
8 - Engine Coolant Temperature (ECT) gauge
9 - Terminal 31 - Ground (GND)
10 - Oil pressure warning lamp
11 - Open
12 - Terminal 61 - warning lamp for Generator (GEN).
13 - Open
14 - Open
15 - Open
16 - Warning lamp for rear hatch/trunk lid open
17 - Terminal 56a - indicator lamp for high beam headlight
18 - Indicator lamp for turn signal, left
19 - Warning lamp for Anti-lock Brake System (ABS)
20 - Terminal 58b - instrument cluster illumination
21 - Driver's door open warning buzzer
22 - Warning lamp for low Engine Coolant Level (ECL)
23 - Terminal 30 - positive (B+)
24 - Terminal 31 - Ground (GND)
25 - Data Link Connector (DLC) K-wire
26 - Parking lights, right (signal for "lights on" warning buzzer)
27 - Parking lights, left, (signal for "lights on" warning buzzer)
28 - Input signal - Speedometer Vehicle Speed Sensor (VSS)
29 - Brake fluid level warning lamp
30 - Terminal 86s - Ignition key warning buzzer
31 - Seat belt warning lamp/buzzer
32 - Open

32 pin multi-connector -T32b-, green







1 - Open
2 - Reading coil for immobilizer 1*
3 - Open
4 - CAN Data Bus, shielded input*
5 - W-wire*
6 - Indicator lamp for low windshield washer fluid
7 - Brake pad wear indicator
8 - Open
9 - Open
10 - Low fuel level warning
11 - Signal for vehicle stationary
12 - A/C clutch cut-off - Engine Coolant Temperature (ECT) signal
13 - Warning lamp for dual circuit brake system and handbrake
14 - Indicator lamp for traction control/ESP*
15-16 - Open
17 - Reading coil for immobilizer 2*
18 - Oil level thermal sensor*
19 - Interface - CAN Data Hi-Bus
20 - Interface - CAN Data Lo-Bus
21 - Open
22 - Hood alarm switch*
23 - Multi Function Trip Computer (MFI) - top row (forwards)
24 - MFI - bottom row (backwards)
25 - MFI - memory switch: reset
26 - MFI - ambient temperature display
27 - On Board Diagnostic (OBD) Interface - CAN Data Hi-Bus
27 - On Board Diagnostic (OBD) Interface - CAN Data Lo-Bus
29-32 - Open

20 pin multi-connector -T20a-, red*







1-4 - Open
5 - Shielded Ground (GND) for Telematik*
6-11 - Open
12 - Radio/Navigation - Clock
13 - Radio/Navigation - Data
14 - Open
15 - Radio/Navigation - Enable
16-20 - Open

*) Where applicable