GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 GMC P42 Commercial Chassis 🢒 Engine 🢒 Engine Controls - 6.5L (L57) 🢒 Instrument Panel, Gages, and Console Connector End Views
Table 1: Engine Coolant Level Switch (Diesel)
Table 2: Engine Coolant Temperature Gauge Sensor
Table 3: Engine Coolant Temperature Gauge Sensor (Diesel)
Table 4: Engine Oil Pressure Gauge Sensor and Fuel Pump Switch (Diesel)
Table 5: Engine Oil Pressure Gauge Sensor and Fuel Pump Switch (Gas)
Table 6: Instrument Cluster

Engine Coolant Level Switch (Diesel)


Object Number: 35437 Size: CH

Connector Part Information
    • 12052641
    • 2 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL/BLK

68

Low Coolant Level Indicator Lamp Output

B

BLK

250

Ground

Engine Coolant Temperature Gauge Sensor


Object Number: 333039 Size: CH

Connector Part Information
    • 12052644
    • 2 Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

35

Coolant Temperature Indicator Lamp Output

B

--

--

Not Used

Engine Coolant Temperature Gauge Sensor (Diesel)


Object Number: 333039 Size: CH

Connector Part Information
    • 12089499
    • 2 Way F Metri-Pack 150 Series (BLU)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

35

Coolant Temperature Indicator Lamp Output

B

--

--

Not Used

Engine Oil Pressure Gauge Sensor and Fuel Pump Switch (Diesel)


Object Number: 68730 Size: CH

Connector Part Information
    • 12110293
    • 3 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

31

Oil Pressure Indicator Lamp Output

B

GRY

120

Fuel Pump Motor

C

ORN

440

Fuse Output - Battery Feed, Type III Fuse

Engine Oil Pressure Gauge Sensor and Fuel Pump Switch (Gas)


Object Number: 39663 Size: CH

Connector Part Information
    • 12065299
    • 4 Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

31

Oil Pressure Indicator Lamp Output

B

--

--

Not Used

C

GRY

120

Fuel Pump Motor Feed

D

ORN

440

Fused Ouput - Battery Feed, Type III Fuse

Instrument Cluster


Object Number: 257960 Size: CH

Connector Part Information
    • 12191309
    • 32 Way F Micro-Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

1-2

--

--

Not Used

3

LT BLU

14

Turn Signal Lamp Feed-Left Front

4

BLK/WHT

451

Engine Control Module Ground

5

LT GRN

11

High Beam Headlamp Feed

5 (DRL)

WHT

629

High Beam Indicator Lamp Feed-Daytime Running Lamps

6

WHT

121

Tachometer Signal

7

PNK

439

Fuse Output-Ignition 1-Type III Fuse

8-12

--

--

Not Used

13

DK GRN

35

Coolant Temperature Indicator Lamp Output

14

DK GRN

389

Vehicle Speed Signal-4000 Pulses Per Mile

15

TAN

31

Oil Pressure Indicator Lamp Output

16

PPL

30

Fuel Gauge Sensor Signal

17

--

--

Not Used

17 (DRL)

LT GRN/BLK

592

Daytime Running Lamp Relay Output-Coil

18

YEL/BLK

508

Water in Fuel Indicator Lamp Output

19

--

--

Not Used

20

DK BLU

507

Glow Plug Indicator Lamp Signal

21

WHT/BLK

176

Service Throttle Soon Indicator Lamp Output

22

PNK

39

Fuse Output-Ignition 1-Type III Fuse

23

BRN/WHT

419

Check Engine Indicator Lamp Output

24

GRY

1234

Do Not Shift Indicator Lamp Output

25

YEL/BLK

68

Low Coolant Level Indicator Lamp Output

26

GRY/BLK

745

Door Ajar Switch Signal-Left Front

27

LT GRN

867

ABS Failure Indicator Lamp Output

28

TAN/WHT

33

Brake Warning Indicator Lamp Output

29

GRY

8

Instrument Panel Lamp Feed

30

YEL

234

Seat Belt Indicator Lamp Output

31

BLK/WHT

451

Engine Control Module Ground

32

DK BLU

15

Turn Signal Lamp Feed-Right Front