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Pin Voltage Charts

INSTRUMENT CLUSTER PIN ASSIGNMENTS (WHITE 26-PIN CONNECTOR)

Pin No. (1) Description/Function Signal Type
1 High Beam Indicator Control Input Signal
2 Instrument Cluster Illumination Control (Dimmer Switch) Input Signal
3 Right Turn Signal Indicator Control Input Signal
4 Left Turn Signal Indicator Control Input Signal
5 Warning Light Control (Transmission Oil Temperature) Input Signal
10 (2)(3) Roll Over Signal (Convertible) Input Signal
11 (2)(3) Data Link Connector (RxD) Output Signal
12 (2)(4) Data Link Connector (TxD) Input/Output Signal
13 (2)(3) Oil Temperature (M3) Input Signal
14 Warning Light Control (Air Bag) Input Signal
16 Warning Light Control (Check Engine Light) Input Signal
17 Warning Light Control (Parking Brake) Input Signal
18 Warning Light Control (Brake Fluid) Input Signal
19 Warning Light Control (Brake Pad Wear) Input Signal
20 Crankshaft RPM Signal Input Signal
21 (2)(3) Fuel Consumption Signal Input Signal
22 Voltage Supply (Fuse No. 31) Input Signal
23 Voltage Supply (Fuse No. 27) Input Signal
24 Ground Circuit (Instrument Cluster Electronics) Ground Signal
(1) Pins that are not listed are not used.
(2) Not used on 318ti.
(3) Not used on 1997-98 Z3.
(4) Not used on 1997 Z3.
INSTRUMENT CLUSTER PIN ASSIGNMENTS (BLUE 26-PIN CONNECTOR)

Pin No. (1) Description/Function Signal Type
1 Trailer Turn Signal Indicator Control Input Signal
2 Vehicle Speed Signal Output Signal
3 Ground Circuit (Warning Lights) Ground Signal
4 Voltage Supply (Fuse No. 23) Input Signal
5 Voltage Supply (Ignition Switch Terminal No. 15) Input Signal
6 Warning Light Control (Generator) Input Signal
8 Fog Light Indicator Control Input Signal
9 Sound Tone Signal Output Signal
10 (2)(3) Information Signal (Fuel Level) Output Signal
11 (4) Warning Light Control (ABS) Input Signal
12 ASC Signal Input Signal
13 Information Signal (Fuel Consumption) Output Signal
14 Warning Light Control (Seat Belt) Input Signal
15 Service Interval Reset Circuit Input Signal
16 Voltage Supply (Fuse No. 46) Input Signal
17 Coolant Temperature Sensor Output Signal
18 Coolant Temperature Sensor Input Signal
19 Warning Light Control (Oil Pressure) Input Signal
21 (5) Ground Circuit Input Signal
22 Ignition Key Warning Input Signal
23 Warning Light Control (Driver's Door Open) Input Signal
24 (2)(3) Information Signal (Dimmer Signal) Output Signal
26 (2)(3) Central Indicator Light/Check Control Input Signal
(1) Pins that are not listed are not used.
(2) Not used on 1997-98 318ti.
(3) Not used on Z3.
(4) Not used on 1998 318ti.
(5) Warning light control (ABS) on M3 models.
INSTRUMENT CLUSTER PIN ASSIGNMENTS (BLACK 12-PIN CONNECTOR)

Pin No. (1) Description/Function Signal Type
1 Fuel Level Sensor Output Signal
3 Ground Supply To Fuel Tank & Vehicle Speed Sensor Output Signal
4 Position Signal (TW) Input Signal
(1) Pins that are not listed are not used.
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