GM Service Manual Online
For 1990-2009 cars only
Connector 1: Fan Motor
Connector 2: Fan Resistor
Connector 3: Refrigerant Pressure Switch

Fan Motor


Object Number: 334401  Size: CH

Connector Part Information

  • OEM: 90980-10928
  • Service: N/A
  • Description: GY

Fan Motor

Pin

Wire Color

Circuit No.

Function

1

WH/RD

--

Fan Motor Control Circuit

2

BK/RD

--

Fan Motor Feed Circuit

Fan Resistor


Object Number: 334401  Size: CH

Connector Part Information

  • OEM: 90980-10928
  • Service: N/A
  • Description: GY

Fan Resistor

Pin

Wire Color

Circuit No.

Function

1

WH/BK

--

Ground

2

BU/WH

--

Low Speed Fan Control Circuit

Refrigerant Pressure Switch


Object Number: 334403  Size: CH

Connector Part Information

  • OEM: 90980-10943
  • Service: N/A
  • Description: GY

Refrigerant Pressure Switch

Pin

Wire Color

Circuit No.

Function

1

YE

--

Pressure Signal to PCM

2

WH/BK

--

Ground

3

LT GN/BK

--

High Speed Fan Control

4

WH/BK

--

Ground