Hummer H3. Instruction - page 49

BATTERY NEGATIVE CABLE REPLACEMENT (LH8)

Removal Procedure

Fig. 23: Battery Negative Cable Replacement (LH8)
Courtesy of GENERAL MOTORS CORP.

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection

and Connection.

2. Remove the negative battery cable clip (2) from the lower half of the battery box.

3. Remove the negative battery cable clip (3) from the battery tray.

2008 Hummer H3

2008 ENGINE Engine Electrical - H3

4. Remove the negative battery cable integral bolt (4) from the battery tray.

Fig. 24: Engine Wiring Harness Electrical Connector & Battery Current Sensor
Courtesy of GENERAL MOTORS CORP.

5. Disconnect the engine wiring harness electrical connector (6) from the battery current

sensor (5).

2008 Hummer H3

2008 ENGINE Engine Electrical - H3

Fig. 25: Negative Battery Cable Ground Bolt
Courtesy of GENERAL MOTORS CORP.

6. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .

7. Remove the negative battery cable ground bolt (4).

8. Remove the negative battery cable clip (2) from the engine wiring harness bracket.

9. Lower the vehicle.

10. Remove the negative battery cable clip (1) from the engine wiring harness bracket.

11. Remove the negative battery cable (3) from the vehicle.

Installation Procedure

2008 Hummer H3

2008 ENGINE Engine Electrical - H3

Fig. 26: Negative Battery Cable Ground Bolt
Courtesy of GENERAL MOTORS CORP.

1. Install the negative battery cable (3) to the vehicle.

IMPORTANT:

The negative battery cable must not be connected to the
battery prior to the installation of the engine harness ground
terminal to the engine block.

The negative battery cable must not be connected to the
battery prior to the installation of the instrument panel
harness and the engine harness to the powertrain control
module.

2008 Hummer H3

2008 ENGINE Engine Electrical - H3

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