Connection K78

Fig 1: Identifying Control Module Outputs Connector Pinouts

Courtesy of SAAB-SCANIA OF AMERICA, INC.

NOTE: All units connected to the I and P-buses send out signals.

CONTROL MODULE OUTPUTS CONNECTOR SPECIFICATION

Control module pin	Component/function	IN/OUT	Test conditions		Across	Test reading
1	Ultrasound sensor, signal	IN	Ignition ON		1-6	B+
2	Seat sensor, signal	IN	Ignition ON	Unoccupied seat Occupied seat	2-6 2-6	5V Approx. 1V
3	Electrically heated rear window, indicator	UT	Ignition ON	Electrically heated rear window ON	3-6	B+
4	Seat sensor, ground	IN	Ignition ON		4-B+	B+
5	LED, alarm	UT	Ignition ON	Activate with T2	5-6	8V for 5 secs.
6	Power ground	IN	Ignition ON		6-B-	<0.1V
7	Rear fog light	UT	Ignition ON		7-6	B+
8	Not connected	IN
9	Door switch RR	IN	Ignition ON	Open door Closed door	9-21 9-21	4.1V 7.3V
10	Door switch RL	IN	Ignition ON	Open door Closed door	10-21 10-21	4.1V 7.3V
11	Door switch FR	IN	Ignition ON	Open door Closed door	11-21 11-21	4.1V 7.3V
12	Door switch FL	IN	Ignition ON	Open door Closed door	12-21 12-21	4.1V 7.3V
13	Coolant level switch,	IN		Open switch Closed switch	13-21 13-21	B+ <0.1V
14	Instrument illumination, bulbs	UT	Ignition ON	Rheostat MAX Rheostat MIN	14-21 14-21	B+ 1.6V
15	Not connected
16	Instrument illumination, LED	UT	Ignition ON	Rheostat MAX Rheostat MIN	16-21 16-21	B+ 3.3V
17	Indicator, hazard warning lights	UT	Ignition ON	Hazard warning lights ON	17-21	B+/0V
18	Interior lighting PWM	UT	Ignition ON		18-21	<0.5
19	Interior lighting	UT	Ignition ON		19-21	B+
20	Solenoid, fuel filler flap	IN/OUT	Ignition ON	Hazard warning lights ON	20-21	B+ for 0.5 s
21	Power ground	IN	Ignition ON		21-B-	<0.1V
22-27	Not connected
28	Front fog lights	UT	Ignition ON		28-21	6V
29	Headlamps pos 1	UT	Ignition ON		29-21	6V
30	Headlamps pos 2	UT	Ignition ON		30-21	5.5V
31	Not connected
32	Luggage compartment switch	IN	Ignition ON	Open boot lid Closed boot lid	32-21 32-21	4.1V 7.3V
33	Not connected
34	Brake fluid level switch	IN	Ignition ON	Open switch Closed switch	34-21 34-21	B+ <0.1
35	AC	UT	Ignition ON	Button not actuated Button depressed	35-21 35-21	B+ <0.5
36-39	Not connected
40	I-bus	IN/OUT	Ignition ON	Connect 86 11 857 Test lamp, red/green	40-21	The test lamp should flash
41	I-bus	IN/OUT	Connect 86 11 857 Test lamp, red/green	ON	4--21	The test lamp should flash
42-43	Not connected
44	Outside temperature sensor	IN	Ignition ON		44-B+	B+
45	Siren	UT	Ignition ON		45-21	B+
46	Not connected
47	Outside temperature sensor		Ignition ON	20 degrees Sensor disconnected	47-21 47-21	2.2V 5V
48-50	Not connected
51	Parking heater	UT	Ignition ON	Relay activated	51-21	<0.5V
52	Not connected
53	Block heater	UT	Ignition ON	Relay activated	53-21	<0.5V
54	Not connected
55	Handbrake switch	IN	Ignition ON	Handbrake applied Handbrake not applied	55-21 55-21	<0.1 B+
56	Not connected
57	Electrically heated rear window	UT	Ignition ON		57-21	B+
58	Boot lid lock microswitch	IN	Ignition ON	ON Unactuated handle Depressed handle	58-21 58-21	10V <0.5V
59	Not connected
60	Bonnet switch	IN	Ignition ON	Open bonnet Closed bonnet	60-21 60-21	<0.5V 10V
61	Hazard warning lights	UT	Ignition ON		61-21	B+
62	Ultrasound sensor, ground	IN		Always	62-B+	B+
63-77	Not connected
78	Solenoid, fuel filler flap	IN/OUT	Ignition ON		78-21	B+ for 0.5 s

(*) All connected control modules send out voltage.