GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 TopKick C-Series (Conventional) C4/C5 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Auxiliary Air Compressor Connector End Views
Table 1: Electric Air Compressor Motor
Table 2: Electric Air Compressor Relay
Table 3: Reservoir Air Pressure Switch

Electric Air Compressor Motor


Object Number: 1413064 Size: CH

Connector Part Information
    • 12124819
    • 2-Way F Metri-Pak Series,Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

OG

350

Air Compressor Motor Supply Voltage

B

BK

350

Ground

Electric Air Compressor Relay


Object Number: 535912 Size: CH

Connector Part Information
    • 12129716
    • 4-Way F Metri-Pack 280 Series, Flexlock

Pin

Wire Color

Circuit No.

Function

30

OG

1840

Battery Positive Voltage

85

BK

350

Ground

86

RD

2672

Air Compressor Relay Control

87

OG

350

Air Compressor Motor Supply Voltage

Reservoir Air Pressure Switch


Object Number: 258174 Size: CH

Connector Part Information
    • 12010973
    • 2-Way M Weather Pack (BK)

Pin

Wire Color

Circuit No.

Function

A

BN

541

Ignition 3 Voltage

B

GY

2672

Air Compressor Relay Control