GM Service Manual Online
For 1990-2009 cars only
Connector 1: Analog Clock (Z75)
Connector 2: Driver Information Center (DIC) Switch
Connector 3: Engine Oil Pressure (EOP) Sensor
Connector 4: Fuel Pump and Sender Assembly - Front
Connector 5: Fuel Pump and Sender Assembly - Rear (Except NQZ)
Connector 6: Instrument Panel Cluster (IPC) (X88/Z88)
Connector 7: Instrument Panel Cluster (IPC) (Z75)
Connector 8: Oil Level Switch

Analog Clock (Z75)


Object Number: 1715243  Size: CH

Connector Part Information

  • OEM: 15368694
  • Service: 88953272
  • Description: 3-Way F Multilock 070 Series (WH)

Terminal Part Information

  • Terminal/Tray: 173630-7/7
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-33 (YE)

Analog Clock (Z75)

Pin

Wire Color

Circuit No.

Function

1

RD/WH

340

Battery Positive Voltage

2

BK

1050

Ground

3

YE

6817

LED Backlight Dimming Control

Driver Information Center (DIC) Switch


Object Number: 1715224  Size: CH

Connector Part Information

  • OEM: 15491277
  • Service: 88988747
  • Description: 5-Way F HCM Series (BK)

Terminal Part Information

  • Terminal/Tray: SHCM-A03T-P025/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Driver Information Center (DIC) Switch

Pin

Wire Color

Circuit No.

Function

1

D-GN/WH

1358

DIC Switch Signal

2

BN

897

DIC Switch Low Reference

3

PK

893

DIC Select Menu Switch Signal

4

YE

6817

LED Backlight Dimming Control

5

BK

1050

Ground

Engine Oil Pressure (EOP) Sensor


Object Number: 1519475  Size: CH

Connector Part Information

  • OEM: 15477863
  • Service: 88988301
  • Description: 3-Way F GT 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 15326267/19
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Engine Oil Pressure (EOP) Sensor

Pin

Wire Color

Circuit No.

Function

1

BK

2755

Low Reference

2

GY

2705

5-Volt Reference

3

TN/WH

331

Oil Pressure Sensor Signal

Fuel Pump and Sender Assembly - Front


Object Number: 684908  Size: CH

Connector Part Information

  • OEM: 15326631
  • Service: 15306360
  • Description: 4-Way F GT 280 Series Sealed 5.8 (BK)

Terminal Part Information

  • Pins: A
  • Terminal/Tray: 15304720/19
  • Core/Insulation Crimp: 4/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: B-D
  • Terminal/Tray: 15304719/19
  • Core/Insulation Crimp: Pins B, C: E/5
  • Core/Insulation Crimp: Pin D: 2/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Fuel Pump and Sender Assembly - Front

Pin

Wire Color

Circuit No.

Function

A

BK

2150

Ground

B

TN/BK

6049

Fuel Tank Sensor Low Reference

C

PU

1589

Fuel Level Sensor Signal - Primary

D

GY

120

Fuel Pump Supply Voltage

Fuel Pump and Sender Assembly - Rear (Except NQZ)


Object Number: 684908  Size: CH

Connector Part Information

  • OEM: 15326631
  • Service: 15306360
  • Description: 4-Way F GT 280 Series Sealed 5.8 (BK)

Terminal Part Information

  • Pins: A
  • Terminal/Tray: 15304720/19
  • Core/Insulation Crimp: 4/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: B-D
  • Terminal/Tray: 15304719/19
  • Core/Insulation Crimp: Pins B, C: E/5
  • Core/Insulation Crimp: Pin D: 2/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Fuel Pump and Sender Assembly - Rear (Except NQZ)

Pin

Wire Color

Circuit No.

Function

A

BK

2150

Ground

B

TN/BK

6049

Fuel Tank Sensor Low Reference

C

L-BU

1937

Secondary Fuel Level Sensor Signal

D

L-GN

1058

Fuel Balance Pump Supply Voltage

Instrument Panel Cluster (IPC) (X88/Z88)


Object Number: 1715223  Size: CH

Connector Part Information

  • OEM: 15489824
  • Service: 15126711
  • Description: 20-Way F 0.64 Series (BK)

Terminal Part Information

  • Terminal/Tray: SAITS-A03T-M064/14
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: J-38125-215/J-35616-64B (L-BU)

Instrument Panel Cluster (IPC)(X88/Z88)

Pin

Wire Color

Circuit No.

Function

1

RD/WH

2840

Battery Positive Voltage

2

D-GN/WH

1358

DIC Switch Signal

3-4

--

--

Not Used

5

PK

1639

Ignition 1 Voltage

6

D-GN

5060

Low Speed GMLAN Serial Data

7

--

--

Not Used

8

YE

6817

LED Backlight Dimming Control

9

D-BU

2307

Passenger Air Bag On Indicator Control

10

D-GN

2308

Passenger Air Bag Off Indicator Control

11

PU

333

Brake Fluid Level Sensor Signal

12

TN

185

Low Washer Fluid Indicator Control

13

BK/WH

1851

Ground

14-15

--

--

Not Used

16

PK

893

DIC Select Menu Switch Signal

17

--

--

Not Used

18

BN/WH

419

MIL Control

19

BN

897

DIC Switch Low Reference

20

PU

5234

Passenger Seat Belt Indicator

Instrument Panel Cluster (IPC) (Z75)


Object Number: 845629  Size: CH

Connector Part Information

  • OEM: 15393409
  • Service: 88987996
  • Description: 26-Way F Lever Assisted (BK)

Terminal Part Information

  • Terminal/Tray: 638551-1/16
  • Core/Insulation Crimp: Pins 1-3, 9-23: J/J
  • Core/Insulation Crimp: Pins 5, 8: K/K
  • Release Tool/Test Probe: 15315247/J-35616-64B (L-BU)

Instrument Panel Cluster (IPC) (Z75)

Pin

Wire Color

Circuit No.

Function

1

RD/WH

2840

Battery Positive Voltage

2

PK

1639

Ignition 1 Voltage

3

D-GN

5060

Low Speed GMLAN Serial Data

4

--

--

Not Used

5

BK/WH

1851

Ground

6-7

--

--

Not Used

8

PU

333

Brake Fluid Level Sensor Signal

9

BN/WH

419

MIL Control

10-11

--

--

Not Used

12

D-GN/WH

1358

DIC Switch Signal

13

BN

897

DIC Switch Low Reference

14-16

--

--

Not Used

17

TN

185

Low Washer Fluid Indicator Control

18-19

--

--

Not Used

20

PK

893

DIC Select Menu Switch Signal

21

PU

5234

Passenger Seat Belt Indicator

22

D-BU

2307

Passenger Air Bag On Indicator Control

23

D-GN

2308

Passenger Air Bag Off Indicator Control

24-26

--

--

Not Used

Oil Level Switch


Object Number: 635009  Size: CH

Connector Part Information

  • OEM: 12052641
  • Service: 12102747
  • Description: 2-Way F Metri-Pack 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Oil Level Switch

Pin

Wire Color

Circuit No.

Function

A

BN

1174

Oil Level Switch Signal

B

BK/WH

451

Ground