GM Service Manual Online
For 1990-2009 cars only
Connector 1: Data Link Connector (DLC)
Connector 2: Instrument Panel Module (IPM) - C1
Connector 3: Instrument Panel Module (IPM) - C2
Connector 4: Instrument Panel Module (IPM) - C3
Connector 5: Rear Integration Module (RIM) - C1
Connector 6: Rear Integration Module (RIM) - C2
Connector 7: Rear Integration Module (RIM) - C3
Connector 8: Rear Integration Module (RIM) - C4

Data Link Connector (DLC)


Object Number: 68793  Size: CH

Connector Part Information

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

Terminal Part Information

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

Data Link Connector (DLC)

Pin

Wire Color

Circuit No.

Function

1

D-GN

5060

Low Speed GMLAN Serial Data

2-3

--

--

Not Used

4

BK

350

Ground

5

BK/WH

351

Ground

6

TN/BK

2500

High Speed GMLAN Serial Data (+) (1)

7-13

--

--

Not Used

14

TN

2501

High Speed GMLAN Serial Data (-) (1)

15

--

--

Not Used

16

RD/WH

1140

Battery Positive Voltage

Instrument Panel Module (IPM) - C1


Object Number: 1468147  Size: CH

Connector Part Information

  • OEM: 1318757-1
  • Service: 88988290
  • Description: 26-Way M 90 Series (NA)

Terminal Part Information

  • Pins: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 25, 26
  • Terminal/Tray: 1123343-2/7
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J-38125-24/J-35616-64B (L-BU)
  • Pins: 1, 2, 5, 6
  • Terminal/Tray: 7116-4020/11
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 15315247/J-35616-18 (BK)
  • Pins: 3, 3
  • Terminal/Tray: 7116-4021/11
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 15315247/J-35616-18 (BK)

Instrument Panel Module (IPM) - C1

Pin

Wire Color

Circuit No.

Function

1

YE

32

Instrument Panel Lamp Fuse Supply Voltage (1)

2

YE

1491

Backlight Lamp Control

3

YE

6817

LED Backlight Dimming Control

3

YE

6817

LED Backlight Dimming Control

4

--

--

Not Used

5

WH

17

Stop Lamp Switch Signal

6

PK

3

Run/Crank Ignition 1 Voltage

7

--

--

Not Used

8

YE/BK

5728

ECM/TCM Serial Data Wake Up

9

YE

5727

High Speed GMLAN Serial Data Wake Up

10

PK

5722

Ignition Mode Switch LED Supply Voltage

11

D-GN

5525

Tap Up/Tap Down Enable Signal

12

WH

111

Hazard Switch Signal

13

BN

1356

Flash To Pass Switch Signal

14

BN/WH

301

Park Lamp Switch On Signal

15

L-GN

5724

Ignition Mode Switch Mode Control

16

D-BU

5719

Ignition Mode Switch Start LED Signal

17

L-GN

5720

Ignition Mode Switch Accessory LED Signal

18

--

--

Not Used

19

L-BU

6857

Headlamp Automatic High Beam Dim Status (TQ5)

20

L-BU

1134

Park Brake Switch Signal

21

PK/BK

1597

Interior Lamp Switch On Signal (w/o UV6)

22

PU

1783

Twilight Sentinel Delay Signal

23

WH

103

Headlamp Switch On Signal

24

--

--

Not Used

25

PU

1375

Remote Radio Control Head Accessory Supply Voltage

26

OG

5721

Ignition Mode Switch Off LED Signal

Instrument Panel Module (IPM) - C2


Object Number: 1420769  Size: CH

Connector Part Information

  • OEM: 1318756-1
  • Service: 88988289
  • Description: 24-Way M TYCO (NA)

Terminal Part Information

  • Pins: 1, 2, 5, 6
  • Terminal/Tray: 7116-4020/11
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 15315247/J-35616-18 (BK)
  • Pins: 3, 4, 4, 4, 7, 9, 10, 11, 12, 13, 14, 15, 16, 19, 20, 21, 22, 23, 24
  • Terminal/Tray: 1123343-2/7
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J-38125-24/J-35616-64B (L-BU)

Instrument Panel Module (IPM) - C2

Pin

Wire Color

Circuit No.

Function

1

BN

4

Accessory Voltage

2

YE

6847

Shift Select Switch Park Supply Voltage

3

D-GN/WH

1317

Fog Lamp Relay Control

4

TN/WH

1969

Headlamp High Beam Relay Control (w/o TT6/TT7/TT8)

4

TN/WH

1969

Headlamp High Beam Relay Control (TT6)

4

TN/WH

1969

Headlamp High Beam Relay Control (TT7/TT8)

5

WH

1080

Park Lamp Relay Control

6

PK/WH

1970

Headlamp Low Beam Relay Control

7

OG

300

Run Ignition 3 Voltage

8

--

--

Not Used

9

TN

28

Horn Relay Control

10

TN

28

Horn Relay Control

11

GY

478

Windshield Wiper Switch Signal (2)

12

BN

253

Trunk Release Relay Control

13

GY

2096

Steering Column Tilt and Telescope Up Switch Signal

14

YE

2097

Steering Column Tilt and Telescope Down Switch Signal

15

D-BU

6856

Headlamp Automatic High Beam Dim Enable (TQ5)

16

WH

5741

Steering Column Lock Module Lock Enable Relay Control (UA2)

17-18

--

--

Not Used

19

D-GN/WH

1932

Shift Select Switch Park Signal

20

WH

1538

Headlamp On With Wipers Signal

21

PK

2094

Steering Column Tilt and Telescope Forward Switch Signal

22

OG

2095

Steering Column Tilt and Telescope Rearward Switch Signal

23

D-GN

1399

RAP Relay Coil Supply Voltage

24

WH

2282

Headlamp Washer Relay Control (TT6/TT7/TT8)

Instrument Panel Module (IPM) - C3


Object Number: 1468163  Size: CH

Connector Part Information

  • OEM: 1318758-1
  • Service: 88988291
  • Description: 30-Way M AMP Hybrid (NA)

Terminal Part Information

  • Pins: 1, 10
  • Terminal/Tray: 7116-4020/11
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 15315247/J-35616-18 (BK)
  • Pins: 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29
  • Terminal/Tray: 1123343-2/7
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J-38125-24/J-35616-64B (L-BU)

Instrument Panel Module (IPM) - C3

Pin

Wire Color

Circuit No.

Function

1

RD/WH

1140

Battery Positive Voltage

2

RD/WH

3340

Battery Positive Voltage

3

BK/WH

151

Signal Ground

4

TN

2501

High Speed GMLAN Serial Data (-) (1) (LC3)

5

TN/BK

2500

High Speed GMLAN Serial Data (+) (1) (LC3)

6

D-GN

44

Instrument Panel Lamp Dimmer Switch Signal (w/o UV6)

7

PK

5076

Current Sensor Supply Voltage

8

WH

5075

Current Sensor Signal

9

BN

5077

Current Sensor Low Reference

10

BK/WH

451

Signal Ground

11

L-BU

187

Rear Fog Lamp Switch Signal (TT7/TT8)

12

OG

192

Front Fog Lamp Switch Signal

13

L-BU/WH

1414

Left Front Turn Signal Switch Signal

14

TN/WH

99

Windshield Washer Fluid Level Sensor Signal

15

TN

2501

High Speed GMLAN Serial Data (-) (1)

16

TN/BK

2500

High Speed GMLAN Serial Data (+) (1)

17

BN

5360

Brake Apply Sensor Low Reference

18

D-BU

1796

Steering Column Radio Control Signal

19

L-BU/BK

1688

5-Volt Reference (w/o UV6)

20

GY

1884

Cruise Control Set/Coast/Resume/Accelerate Switch Signal

21

D-GN

5060

Low Speed GMLAN Serial Data

22

D-GN

5060

Low Speed GMLAN Serial Data

23

--

--

Not Used

24

L-BU

1485

Flash To Pass Switch Supply Voltage

25

D-BU/WH

1415

Right Front Turn Signal Switch Signal

26

BN/WH

1571

Traction Control Switch Signal (2)

27

WH

5359

Brake Apply Sensor Supply Voltage

28

YE

5361

Brake Apply Sensor Signal

29

L-GN/WH

5723

Ignition Mode Switch Mode Voltage

30

--

--

Not Used

Rear Integration Module (RIM) - C1


Object Number: 1420730  Size: CH

Connector Part Information

  • OEM: 174046-2
  • Service: 88987953
  • Description: 16-Way F 40 Series Multi-Lock (BK)

Terminal Part Information

  • Pins: 1, 2, 3, 4, 9, 10, 11, 12
  • Terminal/Tray: 173681-2/17
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-16 (L-GN)

Rear Integration Module (RIM) - C1

Pin

Wire Color

Circuit No.

Function

1

D-GN

646

Reverse Relay Coil Feed

2

D-BU

1393

Courtesy Lamp Relay Coil Control

3

WH

193

Rear Defog Relay Control

4

TN

755

RAP Relay Coil Control (CF5)

5-8

--

--

Not Used

9

PU

6722

Windshield Wiper Depressed Park Motor Relay Control (WCV)

10

YE

1977

Rear Fog Lamp Relay Control (Export) (TT7/TT8)

11

L-BU

1344

Trunk Release Relay Output-Coil

12

BN/WH

1429

Standing Lamp Relay Feed (TT7/TT8)

13-16

--

--

Not Used

Rear Integration Module (RIM) - C2


Object Number: 750205  Size: CH

Connector Part Information

  • OEM: 1740472
  • Service: 12162820
  • Description: 20-Way M Hinged Lock (BK)

Terminal Part Information

  • Pins: 2, 3, 5, 9, 10, 11, 12, 13, 14, 17, 19, 20
  • Terminal/Tray: 173681-2/17
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-16 (L-GN)

Rear Integration Module (RIM) - C2

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

PK

1339

Run/Crank Ignition 1 Voltage

3

YE/BK

1334

Left Rear Turn Signal Lamp Supply Voltage

4

--

--

Not Used

5

L-BU

2380

Rear Parking Assist Chime Signal

6-8

--

--

Not Used

9

YE

5530

Hood Open Switch Signal

10

GY

112

Windshield Wiper Switch Low/Pulse Signal (Export) (UA2)

11

YE

5058

Intrusion Sensor Armed Signal (Export) (UA2)

12

TN/BK

5168

Power Sounder Enable Signal (Export) (UA2)

13

D-GN/WH

1335

Right Rear Turn Signal Lamp Supply Voltage

14

PU

5531

Hood Closed Switch Signal

15-16

--

--

Not Used

17

D-BU/WH

149

Courtesy Lamp Supply Voltage

18

--

--

Not Used

19

OG/BK

744

Trunk Ajar Switch Signal

20

PU

5059

Intrusion Sensor Alarm On Signal (Export) (UA2)

Rear Integration Module (RIM) - C3


Object Number: 1420731  Size: CH

Connector Part Information

  • OEM: 174045-2
  • Service: 88987954
  • Description: 12-Way M 40 Series Multi-Lock (BK)

Terminal Part Information

  • Pins: 1, 2, 4, 10, 12
  • Terminal/Tray: 173681-2/17
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-16 (L-GN)

Rear Integration Module (RIM) - C3

Pin

Wire Color

Circuit No.

Function

1

D-BU/WH

1315

Right Front Turn Signal Lamp Supply Voltage

2

L-BU/WH

1314

Left Front Turn Signal Lamp Supply Voltage

3

--

--

Not Used

4

RD/BK

542

Battery Positive Voltage

5-9

--

--

Not Used

10

D-GN

5060

Low Speed GMLAN Serial Data

11

--

--

Not Used

12

YE

18

Left Rear Stop/Turn Lamp Supply Voltage

Rear Integration Module (RIM) - C4


Object Number: 1391782  Size: CH

Connector Part Information

  • OEM: 173850-1
  • Service: 88953352
  • Description: 8-Way F 070 (WH)

Terminal Part Information

  • Pins: 2, 3, 4, 5, 5, 6, 6, 7, 8
  • Terminal/Tray: 173630-7/7
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-33 (YE)

Rear Integration Module (RIM) - C4

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

RD/BK

442

Battery Positive Voltage

3

GY

157

Interior Lamp Control

4

BK/WH

851

Signal Ground

5

YE

18

Left Rear Stop/Turn Lamp Supply Voltage (TT6/UE1)

5

YE

18

Left Rear Stop/Turn Lamp Supply Voltage (TT7/TT8/V92)

6

D-GN

19

Right Rear Stop/Turn Lamp Supply Voltage (TT6/UE1)

6

D-GN

19

Right Rear Stop/Turn Lamp Supply Voltage(TT7/TT8/V92)

7

RD/WH

540

Battery Positive Voltage

8

BK

850

Ground