GM Service Manual Online
For 1990-2009 cars only
Connector 1: Exhaust Brake Actuator Control Solenoid Valve (K40/NPE w/o LLY)
Connector 2: Exhaust Brake Relay (K40/NPE w/o LLY)
Connector 3: Exhaust Brake Switch (K40)

Exhaust Brake Actuator Control Solenoid Valve (K40/NPE w/o LLY)


Object Number: 68721  Size: CH

Connector Part Information

  • OEM: 15300027
  • Service: 12101855
  • Description: 2-Way F Metri-Pack 280 Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12077411/2
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Exhaust Brake Actuator Control Solenoid Valve (K40/NPE w/o LLY)

Pin

Wire Color

Circuit No.

Function

A

BK/WH

1962

Engine Exhaust Brake Actuator Supply Voltage

B

BK

250

Ground

Exhaust Brake Relay (K40/NPE w/o LLY)


Object Number: 535912  Size: CH

Connector Part Information

  • OEM: 12129716
  • Service: 12166225
  • Description: 4-Way F Metri-Pack 280 Series Flexlock (GY)

Terminal Part Information

  • Terminal/Tray: 12110847/4
  • Core/Insulation Crimp: C/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Exhaust Brake Relay (K40/NPE w/o LLY)

Pin

Wire Color

Circuit No.

Function

30

PK

339

Ignition 1 Voltage

85

PU

2656

Engine Exhaust Brake Relay - High Control

86

BK

2657

Engine Exhaust Brake Relay - Low Control (w/o JVA)

BK

2657

Ground (JVA)

87

L-GN

1962

Engine Exhaust Brake Actuator Supply Voltage

Exhaust Brake Switch (K40)


Object Number: 304345  Size: CH

Connector Part Information

  • OEM: 12177195
  • Service: 15305931
  • Description: 6-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12129484/19
  • Core/Insulation Crimp: Pins A - E/A
  • Core/Insulation Crimp: Pins B-C, E - E/C
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Exhaust Brake Switch (K40)

Pin

Wire Color

Circuit No.

Function

A

BK

750

Ground

B

BK

750

Ground

C

L-GN

2081

Engine Exhaust Brake Switch Signal

D

--

--

Not Used

E

BN

2509

Left Rear Park Lamps Supply Voltage

F

--

--

Not Used