GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 TrailBlazer - 2WD 🢒 Body 🢒 Wiring Systems 🢒 Antilock Brake System Connector End Views
Table 1: Electronic Brake Control Module (EBCM) C1
Table 2: Electronic Brake Control Module (EBCM) C2 - w/NW7
Table 3: Electronic Brake Control Module (EBCM) C2 - w/o NW7
Table 4: Inverting Driver Module (W49 w/NW7)
Table 5: Traction Control Switch (X88/Z88/Z89 w/NW7)
Table 6: Traction Control Switch (W49 w/NW7)
Table 7: Wheel Speed Sensor - LF
Table 8: Wheel Speed Sensor - RF

Electronic Brake Control Module (EBCM) C1


Object Number: 684792 Size: CH

Connector Part Information
    • 12052613
    • 2-Way F Metri-Pack 480 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

1850

Ground

B

RD

642

Battery Positive Voltage

Electronic Brake Control Module (EBCM) C2 - w/NW7


Object Number: 365992 Size: CH

Connector Part Information
    • 12193519
    • 16-Way F Micro-Pack 100W (BK)

Pin

Wire Color

Circuit No.

Function

A1

BN

441

Ignition 3 Voltage

A2

YE

873

Left Front Wheel Speed Sensor Low Reference

A3

D-GN

872

Right Front Wheel Speed Sensor Signal

A4

TN/BK

464

Delivered Torque Signal (2WD)

A5

--

--

Not Used

A6

WH

1808

Service Traction Control Signal

A7

--

--

Not Used

A8

BN/WH

1571

Traction Control Switch Signal

B1

YE/BK

1827

Vehicle Speed Signal

B2

L-BU

830

Left Front Wheel Speed Sensor Signal

B3

TN

833

Right Front Wheel Speed Sensor Low Reference

B4

OG/BK

463

Requested Torque Signal (2WD)

B5

PU

420

TCC Brake Switch/Cruise Control Release Signal

B6

L-BU

1122

ABS/TCS Class 2 Serial Data

B7

L-BU

832

Traction Control Active Signal

B8

PU

333

Brake Fluid Level Sensor Signal

Electronic Brake Control Module (EBCM) C2 - w/o NW7


Object Number: 861663 Size: CH

Connector Part Information
    • 15339077
    • 20-Way F Micro-Pack 100W (BK)

Pin

Wire Color

Circuit No.

Function

A1

YE

873

Left Front Wheel Speed Sensor Low Reference

A2

D-GN

872

Right Front Wheel Speed Sensor Signal

A3

PU

420

TCC Brake Switch/Cruise Control Release Signal

A4-A8

--

--

Not Used

A9

L-BU

1122

ABS/TCS Class 2 Serial Data

A10

PU

333

Brake Fluid Level Sensor Signal

B1

L-BU

830

Left Front Wheel Speed Sensor Signal

B2

TN

833

Right Front Wheel Speed Sensor Low Reference

B3

YE/BK

1827

Vehicle Speed Signal

B4-B9

--

--

Not Used

B10

BN

441

Ignition 3 Voltage

Inverting Driver Module (W49 w/NW7)


Object Number: 40419 Size: CH

Connector Part Information
    • 12015410
    • 6-Way F Printed Circiut Edge Board - Standard (GN)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

PK

639

Ignition 1 Voltage

C

WH

1808

Service Traction Control Signal

D

BK

2250

Ground

E

PU

1681

Traction Control System Passive Indicator Control

F

--

--

Not Used

Traction Control Switch (X88/Z88/Z89 w/NW7)


Object Number: 258171 Size: CH

Connector Part Information
    • 12065873
    • 7-Way F Micro-Pack 100 Series (BK)

Pin

Wire Color

Circuit No.

Function

1

L-BU

832

Traction Control Active Signal

2

BN/WH

1571

Traction Control Switch Signal

3

PK

639

Ignition 3 Voltage (CJ3)

BN

341

Ignition 3 Voltage (CJ2)

4

PU/WH

1382

LED Dimming Signal

5

WH

1808

Service Traction Control Signal

6

BN/WH

230

Instrument Panel Lamps Dimming Control

7

BK

2250

Ground

Traction Control Switch (W49 w/NW7)


Object Number: 258245 Size: CH

Connector Part Information
    • 12089892
    • 7-Way F Micro-Pack 100 Series (GY)

Pin

Wire Color

Circuit No.

Function

1

BN/WH

230

Instrument Panel Lamps Dimming Control

2

BN

341

Ignition 3 Voltage

3

PU

1681

Traction Control System Passive Indicator Control

4

BK

2250

Ground

5

PU/WH

1382

LED Dimming Supply

6

BK

2250

Ground

7

--

--

Not Used

Wheel Speed Sensor - LF


Object Number: 523630 Size: CH

Connector Part Information
    • 15326801
    • 2-Way F GT 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

L-BU

830

Left Front Wheel Speed Sensor Signal

B

YE

873

Left Front Wheel Speed Sensor Low Reference

Wheel Speed Sensor - RF


Object Number: 523630 Size: CH

Connector Part Information
    • 15326801
    • 2-Way F GT 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

D-GN

872

Right Front Wheel Speed Sensor Signal

B

TN

833

Right Front Wheel Speed Sensor Low Reference