GM Service Manual Online
For 1990-2009 cars only
Connector 1: Front Door Courtesy Lamp Switch
Connector 2: Immobilizer Electronic Control Unit (ECU)
Connector 3: Key Transponder
Connector 4: Security Indicator (TVIP)
Connector 5: Security Indicator (w/o TVIP)
Connector 6: Unlock Warning Switch

Front Door Courtesy Lamp Switch


Object Number: 2001960  Size: CH

Connector Part Information

  • OEM: 90980-10871
  • Service: N/A
  • Description: 1-Way

Front Door Courtesy Lamp Switch

Pin

Wire

Circuit

Function

1

RD/WH 0.5

--

Left Front Courtesy Lamp Signal

Immobilizer Electronic Control Unit (ECU)


Object Number: 2001961  Size: CH

Connector Part Information

  • OEM: 90980-12423
  • Service: N/A
  • Description: 16-Way

Immobilizer Electronic Control Unit (ECU)

Pin

Wire

Circuit

Function

1

RD/BK 0.5

--

Battery Positive Voltage

2

BK/WH 0.5

--

Ignition Voltage

3

D-BU/BK 0.5

--

Key Switch Signal

4

D-GN 0.3

--

Key Code Output Signal

5

YE 0.3

--

Transponder Ground

6

--

--

Not Used

7

RD/WH 0.5

--

Courtesy Lamp Signal

8

RD/WH 0.5

--

Security Indicator Signal

9

D-BU/RD

--

Serial Data

10-11

--

--

Not Used

12

BK 0.3

--

ECM Input Signal

13

WH 0.3

--

ECM Output Signal

14

GY 0.3

--

5-Volt Reference

15

D-BU 0.3

--

Key Code Data Signal

16

WH/BK 0.5

--

Ground

Key Transponder


Object Number: 2001962  Size: CH

Connector Part Information

  • OEM: 90980-12092
  • Service: N/A
  • Description: 7-Way

Key Transponder

Pin

Wire

Circuit

Function

1

GY 0.3

--

5-Volt Reference

2-3

--

--

Not Used

4

D-BU 0.3

--

Key Code Data Signal

5

D-GN 0.3

--

Key Code Output Signal

6

--

--

Not Used

7

YE 0.3

--

Transponder Ground

Security Indicator (TVIP)


Object Number: 334472  Size: CH

Connector Part Information

  • OEM: 90980-11013
  • Service: N/A
  • Description: 4-Way F (BK)

Security Indicator (TVIP)

Pin

Wire

Circuit

Function

1

WH/BK 0.5

--

Ground

2

RD/WH 0.5

--

Security Indicator Signal

3

WH 0.3

--

Microphone (+)

4

--

--

Microphone (-) Drain Wire

Security Indicator (w/o TVIP)


Object Number: 820105  Size: CH

Connector Part Information

  • OEM: 90980-11490
  • Service: N/A
  • Description: 3-Way F (WH)

Security Indicator (w/o TVIP)

Pin

Wire

Circuit

Function

1

WH/BK 0.5

--

Ground

2

--

--

Not Used

3

RD/WH 0.3

--

Security Indicator Signal

Unlock Warning Switch


Object Number: 334916  Size: CH

Connector Part Information

  • OEM: 90980-10860
  • Service: N/A
  • Description: 2-Way F (BK)

Unlock Warning Switch

Pin

Wire

Circuit

Function

1

WH/BK 0.3

--

Ground

2

D-BU/BK 0.5

--

Key Switch Signal