Control module connection

CONTROL MODULE REFERENCE CHART

Pin	Component/Function	In/Out	Test conditions		Across	Test reading
1	Battery voltage +30	In			1-3	B+
2	Parking heater, indication	In			2-3
				Activated		<0.5 V
				Not activated		B+
3	Ground	In	Ignition ON		1-3	B+
4	No connection
5	No connection
6	No connection
7	No connection
8	No connection
9	No connection
10	No connection
11	No connection
12	No connection
13	No connection
14	No connection
15	Ground, Sensor ground, fuel level sensor	Out	Ignition ON		15-3	<0.1 V
16	Xenon lamp system indicator	In	Ignition ON	On	16-B-	0 V
16	Xenon lamp system indicator	In	Ignition ON	Out	16-B-	9 V
17	Battery voltage +15	In	Ignition ON		17-3	B+
18	I-bus (-)	In/Out	Ignition ON		18-3	2.5 V
19	I-bus (+)	In/Out	Ignition ON		19-3	2.5 V
20	P bus (-)	In/Out	Ignition ON		20-3	2.5 V
21	P bus (+)	In/Out	Ignition ON		21-3	2.5 V
22	No connection
23	Lights-on indicator lamp	In	Ignition ON	On	23-B-	B+
23	Lights-on indicator lamp	In	Ignition ON	Out	23-B-	0 V
24	Main beam indicator lamp	In	Ignition ON	On	24-B-	B+
24	Main beam indicator lamp	In	Ignition ON	Out	24-B-	0 V
25	Engine oil pressure warning lamp	In	Ignition ON	On	25-B-	0 V
25	Engine oil pressure warning lamp	In	Ignition ON	Out	25-B-	B+
26	No connection
27	Warning lamp, brake fluid level	In	Ignition ON	On	27-B-	0 V
27	Warning lamp, brake fluid level	In	Ignition ON	Out	27-B-	B+
28	Warning lamp, handbrake	In	Ignition ON	On	28-B-	0 V
28	Warning lamp, handbrake	In	Ignition ON	Out	28-B-	B+
29	No connection
30	Warning lamp, charging	In	Ignition ON	On	30-B-	0 V
30	Warning lamp, charging	In	Ignition ON	Out	30-B-	B+
31	Sensor, fuel level	In	Ignition ON		31-3	0.5-3.7 V
32	No connection
> = greater than; < = less than; ~ = alternating current (LP: LOGIC PROBE P = select pulse; p = visible pulse)