GM Service Manual Online
For 1990-2009 cars only
Table 1: Exhaust Brake Relay
Table 2: Exhaust Brake Solenoid
Table 3: Exhaust Brake Switch

Exhaust Brake Relay


Object Number: 535912  Size: CH

Connector Part Information

    • 12129716
    • 4-Way F Metri-Pack 280 Series Flexlock (GY)

Pin

Wire Color

Circuit No.

Function

30

PK

339

Ignition 1 Voltage

PK

239

Ignition 1 Voltage(LB7 only)

85

PU

2656

Exhaust Brake Restore Request

86

BK

2657

ABS Active Signal

87

L-GN

1962

Exhaust Brake

Exhaust Brake Solenoid


Object Number: 68721  Size: CH

Connector Part Information

    • 15300027
    • 2-Way F Metri-Pack 280 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

L-GN

1962

Exhaust Brake

B

BK

250

Ground

Exhaust Brake Switch


Object Number: 304345  Size: CH

Connector Part Information

    • 12177195
    • 6-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

750

Ground

B

BK

750

Ground

C

L-GN

2081

Exhaust Brake Request

D

-

-

Not Used

E

BN

2509

Left Rear Park Lamps Supply Voltage/Left Rear Park Lamps

F

--

--

Not Used