GM Service Manual Online
For 1990-2009 cars only
Connector 1: Brake Master Cylinder Presssure Sensor (JL1)
Connector 2: Trailer Brake Controller Module (TBCM)
Connector 3: Trailer Brake Controller Solid State Relay
Connector 4: Trailer Brake Control Panel Switch

Brake Master Cylinder Presssure Sensor (JL1)


Object Number: 258299  Size: CH

Connector Part Information

  • OEM: 12065287
  • Service: 88988301
  • Description: 3-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12103881/2
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12180559-1/J-35616-2A (GY)

Brake Master Cylinder Presssure Sensor (JL1)

Pin

Wire Color

Circuit No.

Function

A

0.5 YE/BK

6032

Low Reference

B

0.5 GY

6031

5-Volt Reference

C

0.5 OG

6030

Brake Master Cylinder Presssure Sensor Signal

Trailer Brake Controller Module (TBCM)


Object Number: 1711002  Size: CH

Connector Part Information

  • OEM: 15491307
  • Service: 89047377
  • Description: 47-Way F ASG Series Sealed (BK)

Terminal Part Information

  • Pins: 1, 32
  • Terminal/Tray: 15476168/5
  • Core/Insulation Crimp: F/3
  • Release Tool/Test Probe: 15315247/J-35616-42 (RD)
  • Pins: 2, 6-9, 10-11, 14-15, 17, 21-22, 25, 28, 33, 37
  • Terminal/Tray: 7116-3703-02/14
  • Core/Insulation Crimp: 9/9
  • Release Tool/Test Probe: J-38125-215/J-35616-64B (L-BU)

Trailer Brake Controller Module (TBCM)

Pin

Wire Color

Circuit No.

Function

1

2 BK

1750

Ground

2

0.5 D-BU

7632

5-Volt Reference

3-5

--

--

Not Used

6

0.5 TN

2501

High Speed GMLAN Serial Data Bus-

7

0.5 TN/BK

2500

High Speed GMLAN Serial Data Bus+

8

0.5 TN

7631

Low Reference

9

0.5 L-GN

944

Relay Feedback

10

0.5 YE

7635

Integrated Trailer Brake Controller Manual Apply Signal

11

0.5 L-GN/BK

7633

Integrated Trailer Brake Controller User Gain Signal

12-13

--

--

Not Used

14

0.5 TN

945

Integrated Trailer Brake Relay Control Active Low

15

0.5 PK

239

Ignition 1 Voltage

16

--

--

Not Used

17

0.5 L-BU

5986

Serial Data Communication Enable

18-20

--

--

Not Used

21

0.5 TN

2501

High Speed GMLAN Serial Data Bus-

22

0.5 TN/BK

2500

High Speed GMLAN Serial Data Bus+

23-24

--

--

Not Used

25

0.5 BN

7634

Integrated Trailer Brake Controller Redundant Manual Apply Signal

26-27

--

--

Not Used

28

0.5 D-BU

47

Solid State Relay Feedback

29-31

--

--

Not Used

32

2 RD/WH

4340

Battery Positive Voltage

33

0.5 YE/BK

7521

Solid State Relay Enable

34-36

--

--

Not Used

37

0.5 L-BU/WH

6311

TCC Brake Signal

38-47

--

--

Not Used

Trailer Brake Controller Solid State Relay


Object Number: 1664576  Size: CH

Connector Part Information

  • OEM: 15326635
  • Service: 88953154
  • Description: 6-Way F GT 280 Series (BK)

Terminal Part Information

  • Pins: A-B, F
  • Terminal/Tray: 15304720/19
  • Core/Insulation Crimp: 4/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: C-D, E
  • Terminal/Tray: 15304719/19
  • Core/Insulation Crimp: E/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Trailer Brake Controller Solid State Relay

Pin

Wire Color

Circuit No.

Function

A

3 D-BU

47

Trailer Brake Output Supply Voltage

B

3 BK

1750

Ground

C

0.5 TN

945

Integrated Trailer Brake Relay Control Active Low

D

0.5 L-GN

944

Relay Feedback

E

0.5 YE/BK

7521

Solid State Relay Enable

F

3 RD/BK

242

Battery Positive Voltage

Trailer Brake Control Panel Switch


Object Number: 1716517  Size: CH

Connector Part Information

  • OEM: 13518475
  • Service: 89047352
  • Description: 8-Way F YESC Kaizen Series (BK)

Terminal Part Information

  • Pins: 3-8
  • Terminal/Tray: SAITS-A03T-M064/14
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: J-38125-215/J-35616-64B (L-BU)

Trailer Brake Control Panel Switch

Pin

Wire Color

Circuit No.

Function

1-2

--

--

Not Used

3

0.35 D-BU

7632

5-Volt Reference

4

0.35 YE

7635

Integrated Trailer Brake Controller Manual Apply Signal

5

0.35 BN

7634

Integrated Trailer Brake Controller Redundant Manual Apply Signal

6

0.35 L-GN/BK

7633

Integrated Trailer Brake Controller User Gain Signal

7

0.35 YE

6817

LED Backlight Dimming Control

8

0.35 TN

7631

Ground Return