To the top of the document
Volt
   
GMDE Start Page Load static TOC Load dynamic TOC Help?

K20 Engine Control Module X1


784851

Connector Part Information

  • Harness Type: Engine
  • OEM Connector: 34576-0703
  • Service Connector: 88988373
  • Description: 56-Way F MX123 34576 Series (BK with BU Terminal Position Assurance Lock)

Terminal Part Information

  • Terminated Lead: 13575575
  • Release Tool: J-38125-213
  • Diagnostic Test Probe: J-35616-64B (L-BU)

K20 Engine Control Module X1

Pin

Size

Colour

Circuit

Function

Option

1

0.5

L-BU/BK

7493

High Speed GMLAN Serial Data (+)(3)

-

2

0.5

L-GN/WH

1162

Accelerator Pedal Position Signal (2)

--

3

0.5

L-GN/WH

492

Mass Air Flow Sensor Signal

-

4-9

--

--

--

Not Used

--

10

0.5

YE/WH

1161

Accelerator Pedal Position Signal (1)

-

11

--

--

--

Not Used

--

12

0.5

L-GN

380

A/C Refrigerant Pressure Sensor Signal

-

13

0.5

BK/BN

5514

Low Reference

-

14

--

--

--

Not Used

--

15

0.5

WH

7494

High Speed GMLAN Serial Data (-)(3)

-

16

0.5

BN/RD

1274

5 Volt Reference

--

17

--

--

--

Not Used

--

18

0.5

L-BU/WH

3977

Accessory Wake-up Serial Data 2

--

19

0.5

VT/WH

239

Run/Crank Ignition 1 Voltage

-

20

0.75

RD/BN

440

Battery Positive Voltage

-

21-23

--

--

--

Not Used

--

24

0.5

WH/RD

1164

5 Volt Reference

--

25

--

--

--

Not Used

--

26

0.5

BN/RD

2700

5 Volt Reference

-

27

--

--

--

Not Used

--

28

0.5

L-GN/GY

465

Fuel Pump Primary Relay Control

--

29

0.5

L-BU

2500

High Speed GMLAN Serial Data (+) (1)

-

30

0.5

BK/VT

1272

Low Reference

--

31

0.5

BK/VT

2760

Low Reference

-

32

0.5

BK/L-BU

6813

Low Reference

--

33

0.5

WH/L-BU

6311

Cruise/ETC/TCC Brake Signal

-

34-37

--

--

--

Not Used

--

38

0.5

BK/L-BU

1271

Low Reference

-

39

--

--

--

Not Used

--

40

0.5

WH

5148

Engine Main Relay Control

--

41

0.5

L-BU/VT

2364

Cooling Fan Speed Signal

-

42

--

--

--

Not Used

--

43

0.5

WH

2501

High Speed GMLAN Serial Data (-) (1)

-

44

--

--

--

Not Used

--

45

0.5

WH/L-BU

6289

Induction Air Temperature Sensor Signal

--

46

0.5

YE/BK

3000

Coolant Temperature Sensor #2 Signal

-

47

--

--

--

Not Used

--

48

0.5

L-GN

6271

Crankshaft 60X Sensor Signal

--

49-51

--

--

--

Not Used

--

52

0.5

BN/WH

419

Check Engine Indicator Control

-

53-56

--

--

--

Not Used

--

   


© Copyright Chevrolet. All rights reserved