Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector End View

Fig 1: Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector View

Courtesy of GENERAL MOTORS CORP.

SIR Connector End Views

Connector Part Information  OEM: 6-638595-2 Service: See Catalog Description: 26-Way F

Terminal Part Information  Pins: Terminal: TBD Core/Insulation Crimp: TBD Release Tool/Test Probe: TBD

Inflatable Restraint Sensing and Diagnostic Module (SDM)

Pin	Wire Color	Circuit No.	Function
1	RD/WH	1240	Battery Positive Voltage
2	D-GN	5060	Low Speed GMLAN Serial Data
3	PK	5057	Seat Position Switch Low Reference
4	TN/WH	238	Driver Seat Belt Switch Signal
5	-	-	Not Available
6	OG	1362	Passenger Seat Belt Switch Signal
7-11	-	-	Not Available
12	PU	3026	Passenger I/P Module Stage 2 Low Control
13	GY	3027	Passenger I/P Module Stage 2 High Control
14	TN	3021	Steering Wheel Module Stage 1 High Control
15	BN	3020	Steering Wheel Module Stage 1 Low Control
16	PK	3022	Steering Wheel Module Stage 2 Low Control
17	WH	3023	Steering Wheel Module Stage 2 High Control
18	YE	3025	Passenger I/P Module Stage 1 High Control
19	OG	3024	Passenger I/P Module Stage 1 Low Control
20-30	-	-	Not Available
31	BK/WH	351	Signal Ground
32	-	-	Not Available
33	PK	1339	Run/Crank Ignition 1 Voltage
34-35	-	-	Not Available
36	GY	5600	Right Front Discriminating Sensor Low Reference
37	YE/BK	2160	SIR Forward Sensor Signal 2
38	YE	1834	SIR Forward Sensor Signal 1
39	TN/GO	5045	Left Front Discriminating Sensor Low Reference
40-51	-	-	Not Available
52	L-GN	2116	Passenger Seat Belt Pretensioner High Control
53	OG	2117	Passenger Seat Belt Pretensioner Low Control
55	-	-	Not Available
56	TN/WH	2118	Driver Seat Belt Pretensioner High Control
57	OG/BK	2119	Driver Seat Belt Pretensioner Low Control
58-59	-	-	Not Available
60	PK	5018	Occupant Sensor Serial Data