GM Service Manual Online
For 1990-2009 cars only
Connector 1: Auxiliary Body Control Module (XBCM) X1 (Export)
Connector 2: Auxiliary Body Control Module (XBCM) X2 (Export)
Connector 3: Body Control Module (BCM) X1
Connector 4: Body Control Module (BCM) X2
Connector 5: Body Control Module (BCM) X3
Connector 6: Body Control Module (BCM) X4
Connector 7: Body Control Module (BCM) X5
Connector 8: Body Control Module (BCM) X6
Connector 9: Body Control Module (BCM) X7
Connector 10: Data Link Connector (DLC)
Connector 11: Terminator Resistor

Auxiliary Body Control Module (XBCM) X1 (Export)


Object Number: 73156  Size: CH

Connector Part Information

  • OEM: 12110088
  • Service: 15306210
  • Description: 24-Way F Micro-Pack 100 Series (GY)

Terminal Part Information

  • Pins: A1-A3, A7-A8, A10, A12, B1-B2, B4
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Auxiliary Body Control Module (XBCM) X1 (Export)

Pin

Wire Color

Circuit No.

Function

A1

0.5 BK

1050

Ground

A2

0.5 RD/WH

2640

Battery Positive Voltage

A3

0.35 D-GN

5060

Low Speed GMLAN Serial Data

A4-A6

--

--

Not Used

A7

0.8 BK/WH

1851

Ground

A8-A9

--

--

Not Used

A10

0.35 PK

7141

Trailer Connected Signal Trailer

A11

--

--

Not Used

A12

0.35 YE

1618

Trailer Left Rear Turn/Stop Lamp Supply Voltage

B1

0.5 L-BU

1320

CHMSL Supply Voltage

B2

0.35 PK

239

Ignition 1 Voltage

B3-B10

--

--

Not Used

B11

0.35 D-GN

1619

Trailer Right Rear Turn/Stop Lamp Supply Voltage

B12

--

--

Not Used

Auxiliary Body Control Module (XBCM) X2 (Export)


Object Number: 1552610  Size: CH

Connector Part Information

  • OEM: 15357040
  • Service: 12110626
  • Description: 8-Way F Metri-Pack 280 (L-GY)

Terminal Part Information

  • Pins: A-B
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: C/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: G-H
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Auxiliary Body Control Module (XBCM) X2 (Export)

Pin

Wire Color

Circuit No.

Function

A

0.8 L-BU

1620

CHMSL Supply Voltage

B

0.8 RD/WH

4540

Battery Positive Voltage

C-H

--

--

Not Used

Body Control Module (BCM) X1


Object Number: 1664495  Size: CH

Connector Part Information

  • OEM: 15482789
  • Service: 88988838
  • Description: 27-Way F Receptacle 0.64 2.8 (L-GN)

Terminal Part Information

  • Pins: 1-9, 14-21, 23-26
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Body Control Module (BCM) X1

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

0.35 PK/BK

1020

Ignition III Voltage

3

0.35 GY

1884

Cruise Control Switch Signal (K34)

4

0.35 WH

530

5-Volt Reference

5

0.35 L-GN

1715

Windshield Wiper Switch High Signal

6

0.35 L-GN

6818

Steering Wheel Control Switch Signal (UK3)

7

--

--

Not Used

8

0.35 TN/BK

6009

Low Reference

9

0.35 L-BU

1714

Windshield Wiper Switch Low Signal

10-13

--

--

Not Used

14

0.35 PK

3

Ignition 1 Voltage

15

0.35 D-GN

663

Hazard Switch Left Turn Signal

16

0.35 TN

664

Hazard Switch Right Turn Signal

17

0.35 PK

1444

12-Volt Reference

18

0.35 YE/BK

525

Headlamp Dimmer Switch Signal

19

0.35 WH

111

Hazard Switch Signal

20

0.5 PU

5526

Tap Up/Tap Down Switch Signal

21

0.35 BN

4

Accessory Voltage

22

--

--

Not Used

23

0.5 L-BU

553

Tow/Haul Switch Signal

24

0.35 PK

94

Windshield Washer Switch Signal

25

0.35 YE

307

Headlamp Flash to Pass Signal

26

0.35 TN/WH

816

A/T Shift Lock Solenoid Supply Voltage

27

--

--

Not Used

Body Control Module (BCM) X2


Object Number: 1664496  Size: CH

Connector Part Information

  • OEM: 15482790
  • Service: 88988839
  • Description: 25-Way F HIT Series (WH)

Terminal Part Information

  • Pins: 1-3, 5
  • Terminal/Tray: SNAC-A061T-M2.8/20
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094429/J-35616-4A (PU)
  • Pins: 8, 11-12, 17-18, 21-22, 25
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Body Control Module (BCM) X2

Pin

Wire Color

Circuit No.

Function

1

0.5 OG

6815

Inadvertent Power Supply Voltage

2

0.5 RD/WH

2540

Battery Positive Voltage

3

0.5 BN/WH

230

Instrument Panel Lamps Dimming Control

4

--

--

Not Used

5

0.5 GY

157

Courtesy Lamp Control

6-7

--

--

Not Used

8

0.35 L-BU

13

Headlamp Switch Park Lamps Signal

9-10

--

--

Not Used

11

0.35 WH

278

Ambient Light Sensor Signal

12

0.35 WH

103

Headlamp Switch Headlamps On Signal

13-16

--

--

Not Used

17

0.35 D-GN

306

Headlamp Switch Headlamps Off Signal

18

0.35 D-BU/WH

149

Courtesy Lamp Supply Voltage

19-20

--

--

Not Used

21

0.35 L-BU

1788

Traction Control Switch Signal (JL4)

22

0.35 YE

43

Accessory Voltage

23-24

--

--

Not Used

25

0.35 PU

328

Interior Lamp Defeat Switch Signal

Body Control Module (BCM) X3


Object Number: 1664498  Size: CH

Connector Part Information

  • OEM: 15482791
  • Service: 88988840
  • Description: 25-Way F HIT Series (L-BU)

Terminal Part Information

  • Pins: 1-3, 5
  • Terminal/Tray: SNAC-A061T-M2.8/20
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094429/J-35616-4A (PU)
  • Pins: 7-13, 16-19, 21, 22, 25
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Body Control Module (BCM) X3

Pin

Wire Color

Circuit No.

Function

1

0.8 BK/WH

1851

Ground

2

0.8 RD/WH

2140

Battery Positive Voltage

3

0.5 RD/WH

3840

Battery Positive Voltage

4

--

--

Not Used

5

0.8 BK/WH

1851

Ground

6

--

--

Not Used

7

0.5 GY

728

Security Indicator Control (SPO Alarm)

8

0.5 TN/BK

2500

High Speed GMLAN Serial Data Bus+

9

0.5 TN

2501

High Speed GMLAN Serial Data Bus-

10

0.35 D-GN

5060

Low Speed GMLAN Serial Data

11

0.35 D-GN

44

Instrument Panel Lamp Dimmer Switch Signal

12

0.35 OG/WH

812

12-Volt Reference

13

0.35 PU

7062

Brake Switch Signal

14-15

--

--

Not Used

16

0.5 TN/BK

2500

High Speed GMLAN Serial Data Bus+

17

0.5 TN

2501

High Speed GMLAN Serial Data Bus-

18

0.35 YE

6817

LED Backlight Dimming Control

19

0.35 L-BU

5986

Serial Data Communication Enable

20

--

--

Not Used

21

0.35 OG

192

Front Fog Lamp Switch Signal/Fog Lamps Enable (T96)

22

0.35 L-GN/WH

7158

Cruise Control Indicator Dimming Signal

23-24

--

--

Not Used

25

0.35 PU/WH

6816

Indicator Dimming Control

Body Control Module (BCM) X4


Object Number: 1664499  Size: CH

Connector Part Information

  • OEM: 15482792
  • Service: 88988841
  • Description: 25-Way F HIT Series (BK)

Terminal Part Information

  • Pins: 1-5
  • Terminal/Tray: SNAC-A061T-M2.8/20
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094429/J-35616-4A (PU)
  • Pins: 7, 9-19, 21, 23
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Body Control Module (BCM) X4

Pin

Wire Color

Circuit No.

Function

1

0.8 RD/WH

2740

Battery Positive Voltage

2

0.8 RD/WH

3040

Battery Positive Voltage

3

0.8 RD/WH

2940

Battery Positive Voltage

4

0.8 RD/WH

2240

Battery Positive Voltage

5

0.5 D-BU/WH

1315

Right Front Turn Signal Lamp Supply Voltage

6

--

--

Not Used

7

0.35 YE

196

Windshield Wiper Motor Park Switch Signal

8

--

--

Not Used

9

0.5 BK/WH

451

Ground

10

0.35 RD/WH

2840

Battery Positive Voltage

11

0.35 D-GN/WH

1317

Fog Lamp Relay Control (T96)

12

0.35 YE

5187

Right Trailer Turn Signal Lamp

13

0.35 OG

5186

Left Trailer Turn Signal Lamp

14

0.35 L-GN

482

Outside Moisture Sensor Signal 2 (10 Series)

15

0.5 OG

2268

Windshield Washer Relay Control

16

0.35 TN/WH

1969

Headlamp High Beam Relay Control

17

0.35 PK/BK

109

Hood Ajar Switch Signal (AP3/AP8)

18

0.35 TN

481

Outside Moisture Sensor Signal 1 (10 Series)

19

0.35 D-BU

5985

Accessory Wakeup Serial Data

20

--

--

Not Used

21

0.35 YE

5199

Run/Crank Relay Coil Control

22

--

--

Not Used

23

0.35 L-GN/BK

592

DRL Relay Control

24-25

--

--

Not Used

Body Control Module (BCM) X5


Object Number: 1664500  Size: CH

Connector Part Information

  • OEM: 15480179
  • Service: 88988837
  • Description: 25-Way F HIT Series (BN)

Terminal Part Information

  • Pins: 1, 2
  • Terminal/Tray: SNAC-A061T-M2.8/20
  • Core/Insulation Crimp: C/A
  • Release Tool/Test Probe: 12094429/J-35616-4A (PU)
  • Pins: 4, 5
  • Terminal/Tray: SNAC-A061T-M2.8/20
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094429/J-35616-4A (PU)
  • Pins: 6, 8-11, 13-16, 18-21, 23-24
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Body Control Module (BCM) X5

Pin

Wire Color

Circuit No.

Function

1

0.5 YE

18

Left Rear Stop/Turn Lamp Supply Voltage

2

0.5 D-GN

19

Right Rear Stop/Turn Lamp Supply Voltage

3

--

--

Not Used

4

0.5 L-BU/WH

1314

Left Front Turn Signal Lamp Supply Voltage

5

0.5 L-BU

1320

CHMSL Supply Voltage/Stop Lamp Supply Voltage

6

0.35 L-BU/WH

6311

Cruise/ETC/TCC Brake Signal

7

--

--

Not Used

8

0.5 PK

5076

Current Sensor Supply Voltage (10 Series)

9

0.5 WH

5075

Current Sensor Signal (10 Series)

10

0.5 BN

5077

Low Reference (10 Series)

11

0.35 D-BU

38

Backup Lamp Relay Control

12

--

--

Not Used

13

0.35 OG

300

Ignition 3 Voltage

14

0.35 WH

2283

12-Volt Reference (NQF/NQH/10 Series)

15

0.35 PU

5531

Hood Closed Switch Signal (AP3/AP8)

16

0.35 L-BU

1134

Park Brake Switch Signal (Park brake systems only)

17

--

--

Not Used

18

0.35 TN

28

Horn Relay Control

19

0.35 YE

6812

Out of Park Signal (YE9/Y91)

20

0.35 GY

91

Windshield Wiper Switch Signal 2

21

0.35 TN

860

Front Windshield Wiper Switch High Signal Control

22

--

--

Not Used

23

0.35 PK/WH

1970

Headlamp Low Beam Relay Control

24

0.35 D-BU

45

Park Lamp Relay Control

25

--

--

Not Used

Body Control Module (BCM) X6


Object Number: 1664502  Size: CH

Connector Part Information

  • OEM: 15482793
  • Service: 88988842
  • Description: 25-Way F HIT Series (PK)

Terminal Part Information

  • Pins: 2
  • Terminal/Tray: SNAC-A061T-M2.8/20
  • Core/Insulation Crimp: C/A
  • Release Tool/Test Probe: 12094429/J-35616-4A (PU)
  • Pins: 8-10, 14-16, 18, 20, 23
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Body Control Module (BCM) X6

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

1 WH/BK

158

Courtesy Lamp Supply Voltage

3-7

--

--

Not Used

8

0.35 TN/WH

746

Right Front Door Ajar Switch Signal (-AN3/DL3)

9

0.35 D-BU

245

Passenger Door Lock Switch Unlock Signal (-YE9/YE9 -AN3/DL3)

10

0.35 GY/BK

745

Left Front Door Ajar Switch Signal (-AN3/DL3)

11-13

--

--

Not Used

14

0.35 L-GN/BK

748

Right Rear Door Ajar Switch Signal (Crew Cab)

15

0.35 L-BU/BK

747

Left Rear Door Ajar Switch Signal (Crew Cab)

16

0.35 OG

5922

Non-Driver Door Open Switch Signal

17

--

--

Not Used

18

0.35 L-BU

244

Passenger Door Lock Switch Lock Signal (-YE9/YE9 -AN3/DL3)

19

--

--

Not Used

20

0.35 L-GN

262

Driver Door Key Switch Signal (-AN3/DL3)

21-22

--

--

Not Used

23

0.5 YE

5058

Intrusion Sensor Armed Signal (SPO Alarm)

24-25

--

--

Not Used

Body Control Module (BCM) X7


Object Number: 1664505  Size: CH

Connector Part Information

  • OEM: 15466053
  • Service: 88988806
  • Description: 28-Way F Receptacle 0.64 Series (GY)

Terminal Part Information

  • Pins: 6-7, 9, 11-12, 15, 18-19, 21, 23, 26-28
  • Terminal/Tray: SNAC3-A021T-M0.64/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Body Control Module (BCM) X7

Pin

Wire Color

Circuit No.

Function

1-5

--

--

Not Used

6

0.35 L-BU

5921

Driver Door Unlock Relay Control

7

0.35 L-BU

195

Door Lock Control

8

--

--

Not Used

9

0.35 WH

194

Door Unlock Control

10

--

--

Not Used

11

0.35 OG/BK

781

Driver Door Lock Switch Unlock Signal (-YE9/YE9 -AN3/DL3)

12

0.35 PK/BK

780

Driver Door Lock Switch Lock Signal (-YE9/YE9 -AN3/DL3)

13-14

--

--

Not Used

15

0.5 PU

5059

Intrusion Sensor Alarm ON Signal (SPO Alarm)

16-17

--

--

Not Used

18

0.35 L-GN

170

Power Window Master Switch Right Rear Up Signal (AN3/DL3 +Crew Cab +A31/Extended Cab +ABV)

19

0.35 PU

169

Power Window Master Switch Left Rear Down Signal (AN3/DL3 +Crew Cab +A31/Extended Cab +ABV)

20

--

--

Not Used

21

0.35 D-BU

1307

Power Window Master Switch Lockout Signal (AN3/DL3 +Crew Cab +A31/Extended Cab +ABV)

22

--

--

Not Used

23

0.35 TN

126

Left Front Door Open Switch Signal (-AN3/DL3)

24-25

--

--

Not Used

26

0.35 PU

171

Power Window Master Switch Right Rear Down Signal (AN3/DL3 +Crew Cab +A31/Extended Cab +ABV)

27

0.35 L-BU/WH

280

Power Window Master Switch Lockout Right Rear Signal (AN3/DL3 +Crew Cab +A31/Extended Cab +ABV)

28

0.35 D-GN

168

Power Window Master Switch Left Rear Up Signal (AN3/DL3 +Crew Cab +A31/Extended Cab +ABV)

Data Link Connector (DLC)


Object Number: 68793  Size: CH

Connector Part Information

  • OEM: 12110250
  • Service: 12110250
  • Description: 16-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Pins: 1, 6, 14
  • Terminal/Tray: 12129484/19
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)
  • Pins: 4, 5, 16
  • Terminal/Tray: 12129484/19
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Data Link Connector (DLC)

Pin

Wire Color

Circuit No.

Function

1

0.35 D-GN

5060

Low Speed GMLAN Serial Data

2-3

--

--

Not Used

4

0.8 BK

1050

Ground

5

0.8 BK/WH

1851

Ground

6

0.5 TN/BK

2500

High Speed GMLAN Serial Data Bus+

7-13

--

--

Not Used

14

0.5 TN

2501

High Speed GMLAN Serial Data Bus-

15

--

--

Not Used

16

0.8 RD/WH

640

Battery Positive Voltage

Terminator Resistor


Object Number: 523630  Size: CH

Connector Part Information

  • OEM: 15326801
  • Service: 15306156
  • Description: 2-Way F GT 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 15326427/5
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Terminator Resistor

Pin

Wire Color

Circuit No.

Function

A

0.5 TN/BK

2500

High Speed GMLAN Serial Data Bus+

B

0.5 TN

2501

High Speed GMLAN Serial Data Bus-