Control module connection

WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Control Module Pinouts

Courtesy of SAAB-SCANIA OF AMERICA, INC.

=greater than; < = less than; ~ = alternating current (LP: LOGIC PROBE P = select pulse; p = visible pulses)

CONTROL MODULE PINOUTS REFERENCE

Pin No.	Cable colour	Component/function	In/Out	Test conditions	Across	Test reading	See
1	YE/WH	Right brake light, power supply from TWICE to bulb.	Out	Brake pedal pressed.	1-B	B+	LIGHTING AND SIGNALING SYSTEMS
2	GY	Central locking system motor for luggage compartment lock, relay.	Out	Not operated	2-B	B+	DOORS & LOCKS
				Activate function with diagnostic tool.	B+ -2	B+
3	BU/YE	Electrically adjustable passenger seat, relay ground.	Out	Ignition ON	3-B	approx. 1V	SEATS
				Ignition OFF. Front doors closed. Not operated	3-B	B+
4	BN	Starting relay	Out	Ignition key in position ST. Transponder not OK.	4-B	B+	Theft protection THEFT PROTECTION
				Ignition key in position ST. Transponder OK.	4-B-	<0.5V
5	BN/WH	Seat sensor, passenger seat.	In	Passenger seat occupied.	5--21	<4.2V	Seat belt system SEAT BELT SYSTEM
				Passenger seat unoccupied.	5--21	5V
6	YE/GY	Locking switch for central locking, centre console.	In	Ignition ON	6-B	B+ for approx. 0.5 sec.	Doors and locks DOORS & LOCKS
7	YE/BN	Unlocking switch for central locking, centre console.	In	Ignition ON	7-B	B+ for approx. 0.5 sec.	Doors and locks DOORS & LOCKS
8	BU/BN	Unlocking with key in passenger door.	In	Ignition ON	B+ -8	B+ for approx. 0.5 sec.	Doors and locks DOORS & LOCKS
9	BN	Heated rear seat, request.	In	Ignition ON: Heated seat button held down.	9-B	B+	Seats SEATS
10	RD	Glass breakage sensor and tilt sensor, power supply.	Out	Sensor not disconnected. Anti-theft alarm armed.	10-B	B+	Theft protection THEFT PROTECTION
11	RD/WH	Switch for unlocking tailgate/boot lid.	In	Ignition ON	11-B-	B+ for approx. 0.5 sec.	DOORS & LOCKS
12	BK/GN	Door switch, left rear door.	In	Ignition ON: Door closed.	12-B	B+ for approx. 0.5 sec.	LIGHTING AND SIGNALING SYSTEMS Theft protection THEFT PROTECTION
13	BK	Antenna for remote control, ground	In	Always	B+ -13	B+	Theft protection THEFT PROTECTION
					13-B-	<0.5V
14	BN	Antenna for remote control, signal.	In	Remote control not operated.	14-B	B+	Theft protection THEFT PROTECTION
				Press lock button.	14-B	approx. 6V for approx. 0.2 sec.
15	WH	I-bus ( -)	In/Out	Ignition ON: Bus active	15-B-	2-3V	FUSES & CIRCUIT BREAKERS
16	YE/GY	Ignition +15, logic.	In	Ignition ON	16-B	B+	FUSES & CIRCUIT BREAKERS
17	3D/5D: BN/RD CONV: RD/BN	Ignition +B, logic	In	Ignition ON: Key in ignition switch	17-B	B+	FUSES & CIRCUIT BREAKERS
18	LHD: BU/RD LHD/CONV: RD/BK RHD: RD/BK	Seat belt switch, driver's side.	In	Ignition ON: Seat belt on driver's side not buckled	18-B-	<0.5V	Seat belt system SEAT BELT SYSTEM
				Seat belt buckled	18-B	B+
19	BU/RD	Tilt sensor signal.	In	Ignition ON	19-B-	1.0V	Theft protection THEFT PROTECTION
20	VT/WH	Central locking motors rear doors, operating current for theft security locking	Out	Not operated	B+ -20	B+	Doors and locks DOORS & LOCKS
				Lock the car. Then activate function with diagnostic tool.	20-B	B+
					B+ -20	<1V
21	BN/OG	Seat sensor passenger seat, ground.	Out	Ignition ON	B+ -21	B+	Seat belt system SEAT BELT SYSTEM
22	OG	Central locking motors doors, operating current for locking	Out	Not operated	B+ -22	B+	Doors and locks DOORS & LOCKS
				Car must be unlocked. Then activate function with diagnostic tool.	22-B	B+
					B+ -22	<1V
23	BU/WH	Parking light left rear, power supply from switch.	In	Light switch in position for parking light (pos 1).	23-B	B+	Lighting and signalling systems LIGHTING AND SIGNALING SYSTEMS
24	YE/GN	High-level brake light, power supply from TWICE to bulb.	Out	Brake pedal pressed.	24-B	B+	Lighting and signalling systems LIGHTING AND SIGNALING SYSTEMS
25	BU/OG	Left brake light, power supply from TWICE to bulb.	Out	Brake pedal pressed.	25-B	B+	Lighting and signalling systems LIGHTING AND SIGNALING SYSTEMS
26	BU/YE	Central locking motor driver's door, operating current for unlock	Out	Not operated	B+ -26	B+	Doors and locks DOORS & LOCKS
				Car must be unlocked. Then activate function with diagnostic tool.	26-B	B+
					B+ -26	<1V
27	GY/WH	LED, theft security.	Out	Activate function with diagnostic tool	B+ -27	approx. 1.95 V	Theft protection THEFT PROTECTION
28	RD/WH	Seat belt warning lamp, ground.	Out	Ignition ON	28-B-	<1 V for 6 sec	Seat belt system SEAT BELT SYSTEM
				Seat belt buckled more than 6 seconds since ignition ON.	28-B	B+
29	YE	Siren, communication	Out	Ignition ON	29-B	B+	Theft protection THEFT PROTECTION
30		No connection
31		No connection
32	RD/VT	Locking with key in passenger door.	In	Ignition ON	B+ -32	B+ for approx. 0.5 sec.	Doors and locks DOORS & LOCKS
33	BU/BN	Unlock with key in driver's door.	In	Ignition ON	B+ -33	B+ for 0.5 sec.	Doors and locks DOORS & LOCKS
34	BK	Tilt sensor, ground	In	Always	B+ -34	B+	Theft protection THEFT PROTECTION
					34-B-	<0.5V
35	BK	Luggage compartment switch	In	Ignition ON: Tailgate closed.	35-B	B+ for approx. 0.5 sec.	Lighting and signalling systems LIGHTING AND SIGNALING SYSTEMS Theft protection THEFT PROTECTION
				Tailgate open.	35-B-	<0.1V
36	BK/GN	Door switch; right rear door.	In	Ignition ON: Door closed.	36-B	B+ for approx. 0.5 sec.	Lighting and signalling systems LIGHTING AND SIGNALING SYSTEMS Theft protection THEFT PROTECTION
				Door open.	36-B-	<0.1V
37	BK	Signal ground	In	Always	B+ -37	B+	FUSES & CIRCUIT BREAKERS
					37-B-	<0.5V
38	GN	I-bus (+)	In/Out	Ignition ON: Bus active	38-B-	2--3V	FUSES & CIRCUIT BREAKERS
39	OG/BK	Immobilizer; code from antenna unit by the ignition lock.	In	Ignition ON	39-B	B+	Theft protection THEFT PROTECTION
				Ignition OFF.	B+ -39	<0.1V
40		No connection
41	RD/WH	Bonnet switch	In	Ignition ON: Bonnet closed.	41-B	B+ for approx. 0.5 sec.	Theft protection THEFT PROTECTION
				Bonnet open.	41-B-	<0.1V
42	VT	Central locking motor driver's side, operating current for theft prevention locking. Car must be locked.	Out	Not operated	B+ -42	B+	Doors and locks
				Activate function with diagnostic tool	42-B	B+
					B+ -42	<1V
43	RD	TWICE, power supply +30.	In	Always +30	43-B	B+	FUSES & CIRCUIT BREAKERS
					B+ -43	<0.5V
44	VT/WH	Central locking system motor luggage compartment, operating current for theft security locking. Car must be locked.	Out	Not operated	B+ -44	B+	Doors and locks DOORS & LOCKS
				Activate function with diagnostic tool	44-B	B+
					B+ -44	<1V
45	GN/YE	Parking light left rear, power supply from TWICE to bulb.	Out	Light switch in position for parking light (pos 1).	45-B	B+	Lighting and signalling systems LIGHTING AND SIGNALING SYSTEMS
46	GN/WH	Parking light right rear, power supply from TWICE to bulb.	In	Light switch in position for parking light (pos 1).	46-B	B+	Lighting and signalling systems LIGHTING AND SIGNALING SYSTEMS
47	RD	Central locking system, power supply from fuse.	In	Always +30.	47-B	B+	Doors and locks DOORS & LOCKS
				Activate any central locking function.	B+ -47	<1V
48	VT	Brake light, power supply from brake light switch.	In	Brake pedal pressed.	48-B	B+	Lighting and signalling systems LIGHTING AND SIGNALING SYSTEMS
49	BU/YE	Central locking motors rear doors, operating current for unlocking.	Out	Not operated	B+ -49	B+	Doors and locks DOORS & LOCKS
				Activate function with diagnostic tool	49 - ground	B+
					B+ -49	<1V
50	BK	Antenna unit for immobilizer; power supply.	Out	Ignition ON: Without transponder	50-B	B+ for approx. 10 sec.	Theft protection THEFT PROTECTION
				Ignition ON: With transponder	50-B	B+ for approx. 0.1 sec.
51	YE	Luggage compartment opening, relay.	Out	Not operated	51-B	B+	Doors and locks DOORS & LOCKS
				Activate function with diagnostic tool.	B+ -51	<0.5V
52	BU/RD	Heated rear seat, relay.	Out	Activate with diagnostic tool.	52-B	approx. 1V	Seats SEATS
				Not operated	52-B	B+
53		No connection
54		No connection
55	BU/WH	Locking button, driver's door.	In	Ignition ON: Locking button up.	55-B-	0V	Doors and locks DOORS & LOCKS
				Locking button down.	55-B	B+ for approx. 0.5 sec.
56	RD/VT	Locking with key in driver's door.	In	Ignition ON	56-B-	8V for approx. 0.5 sec.	Doors and locks DOORS & LOCKS
				Key in door lock in locked position.	56-B-	0V
57	WH/BK	Glass breakage sensor, ground	In	Always	B+ -57	B+	Theft protection THEFT PROTECTION
					57-B-	<0.5V
58	GN/GY	Glass breakage sensor, signal	In	Ignition ON	58-B