GM Service Manual Online
For 1990-2009 cars only
Connector 1: Current Sensor (HP2)
Connector 2: Energy Storage Control Module (ESCM) - C1 (HP2)
Connector 3: Energy Storage Control Module (ESCM) - C2 (HP2)
Connector 4: Temperature Sensor - Battery 1 (HP2)
Connector 5: Temperature Sensor - Battery 2 (HP2)
Connector 6: Temperature Sensor - Battery 3 (HP2)
Connector 7: Voltage Sensor - 1 (HP2)
Connector 8: Voltage Sensor - 2 (HP2)
Connector 9: Voltage Sensor - 3 (HP2)
Connector 10: Voltage Sensor - 4 (HP2)

Current Sensor (HP2)


Object Number: 814536  Size: CH

Connector Part Information

  • OEM: 174966-2
  • Service: 88953314
  • Description: 4-Way F Multilock Series (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Current Sensor (HP2)

Pin

Wire Color

Circuit No.

Function

1

WH

1-CS

Current Sensor Signal - A

2

WH

2-CS

Current Sensor Signal - B

3

WH

3-CS

Compensating Coil Voltage

4

WH

4-CS

Low Reference

Energy Storage Control Module (ESCM) - C1 (HP2)


Object Number: 1457326  Size: CH

Connector Part Information

  • OEM: 967224-C1
  • Service: See Catalog
  • Description: 30-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Energy Storage Control Module (ESCM) - C1 (HP2)

Pin

Wire Color

Circuit No.

Function

1

WH

1-NTC-1

Temperature Sensor Signal - 1

2

WH

1-NTC-2

Temperature Sensor Signal - 2

3-7

--

--

Not Used

8

WH

2-BCO

BCO Control - A

9

WH

4-BCO

BCO Control - B

10

WH

2-BCO

BCO Status

11

WH

1-BCO

Ground

12

WH

2-CS

Current Sensor Signal - B

13

WH

3-CS

Compensating Coil Voltage

14

WH

5-BCO

Battery Positive Voltage

15

WH

2-FAN

Low Reference

16

--

--

Not Used

17

WH

2-NTC-2

Low Reference

18

WH

2-NTC-1

Low Reference

19

WH

2-NTC-3

Low Reference

20

WH

1-NTC-3

Temperature Sensor Signal - 3

21

WH

1-R2

Voltage Sensor Signal - 2

22

--

--

Not Used

23

WH

1-R1

Voltage Sensor Signal - 1

24

WH

1-R4

Voltage Sensor Signal - 4

25

WH

1-R3

Voltage Sensor Signal - 3

26

--

--

Not Used

27

WH

1-CS

Current Sensor Signal - A

28

WH

4-CS

Low Reference

29

WH

4-FAN

5-Volt Reference

30

WH

1-FAN

Fan Speed Signal

Energy Storage Control Module (ESCM) - C2 (HP2)


Object Number: 1457328  Size: CH

Connector Part Information

  • OEM: 967224-C2
  • Service: See Catalog
  • Description: 48-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Energy Storage Control Module (ESCM) - C2 (HP2)

Pin

Wire Color

Circuit No.

Function

1-14

--

--

Not Used

15

WH

1-CAR

High Speed GMLAN Serial Data (+)

16-17

--

--

Not Used

18

WH

7-CAR

Ignition 1 Voltage

19-23

--

--

Not Used

24

WH

GND-CAR

Ground

25-38

--

--

Not Used

39

WH

2-CAR

High Speed GMLAN Serial Data (-)

40-41

--

--

Not Used

42

WH

8-CAR

Ignition 0 Voltage

43-47

--

--

Not Used

48

WH

3-CAR

Battery Positive Voltage

Temperature Sensor - Battery 1 (HP2)


Object Number: 1459283  Size: CH

Connector Part Information

  • OEM: 1-968699-1
  • Service: See Catalog
  • Description: 2-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Temperature Sensor - Battery 1 (HP2)

Pin

Wire Color

Circuit No.

Function

1

WH

1-NTC-1

Temperature Sensor Signal - 1

2

WH

2-NTC-1

Low Reference

Temperature Sensor - Battery 2 (HP2)


Object Number: 1459283  Size: CH

Connector Part Information

  • OEM: 1-968699-1
  • Service: See Catalog
  • Description: 2-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Temperature Sensor - Battery 2 (HP2)

Pin

Wire Color

Circuit No.

Function

1

WH

1-NTC-2

Temperature Sensor Signal - 2

2

WH

2-NTC-2

Low Reference

Temperature Sensor - Battery 3 (HP2)


Object Number: 1459283  Size: CH

Connector Part Information

  • OEM: 1-968699-1
  • Service: See Catalog
  • Description: 2-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Temperature Sensor - Battery 3 (HP2)

Pin

Wire Color

Circuit No.

Function

1

WH

1-NTC-3

Temperature Sensor Signal - 3

2

WH

2-NTC-3

Low Reference

Voltage Sensor - 1 (HP2)


Object Number: 1399242  Size: CH

Connector Part Information

  • OEM: 925324-2
  • Service: See Catalog
  • Description: 1-Way F (WH)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Voltage Sensor - 1 (HP2)

Pin

Wire Color

Circuit No.

Function

A

WH

1-R1

Voltage Sensor Signal - 1

Voltage Sensor - 2 (HP2)


Object Number: 1399242  Size: CH

Connector Part Information

  • OEM: 925324-2
  • Service: See Catalog
  • Description: 1-Way F (WH)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Voltage Sensor - 2 (HP2)

Pin

Wire Color

Circuit No.

Function

A

WH

1-R2

Voltage Sensor Signal - 2

Voltage Sensor - 3 (HP2)


Object Number: 1399242  Size: CH

Connector Part Information

  • OEM: 925324-2
  • Service: See Catalog
  • Description: 1-Way F (WH)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Voltage Sensor - 3 (HP2)

Pin

Wire Color

Circuit No.

Function

A

WH

1-R3

Voltage Sensor Signal - 3

Voltage Sensor - 4 (HP2)


Object Number: 1399242  Size: CH

Connector Part Information

  • OEM: 925324-2
  • Service: See Catalog
  • Description: 1-Way F (WH)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Voltage Sensor - 4 (HP2)

Pin

Wire Color

Circuit No.

Function

A

WH

1-R4

Voltage Sensor Signal - 4