Hummer H3. Manual — part 1139

6. Remove the negative battery cable (1) from the battery.

Connecting Procedure

Fig. 12: Identifying Battery Cables
Courtesy of GENERAL MOTORS CORP.

1. Clean any existing corrosion from the battery terminal and battery cable (1) using a wire

brush.

2. Install the negative battery cable (1) to the battery.

NOTE:

Refer to Fastener Notice .

2007 Hummer H3

2007 ENGINE Engine Electrical - H3

3. Tighten the negative battery cable nut.

Tighten: Tighten the nut to 9 N.m (80 lb in).

4. Close the negative battery cable cover.

5. Reset all preset and theft codes previously recorded to the radio.

BATTERY POSITIVE AND NEGATIVE CABLE REPLACEMENT

Removal Procedure

IMPORTANT:

Always use replacement cables that are of the same type,
diameter and length of the cables that are being replaced.

Always route the replacement cable the same way as the
original cable.

2007 Hummer H3

2007 ENGINE Engine Electrical - H3

Fig. 13: View Of Battery Cables
Courtesy of GENERAL MOTORS CORP.

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

and Connection.

2. Open the protective cover to access the positive battery cable terminal.

3. Loosen the positive battery cable nut (3).

4. Remove the positive battery cable (4) from the battery.

2007 Hummer H3

2007 ENGINE Engine Electrical - H3

Fig. 14: Identifying Engine Wiring Harness Connector & Retaining Clips
Courtesy of GENERAL MOTORS CORP.

5. Disconnect the engine wiring harness electrical connector (1) from the generator battery

control module.

6. Remove the engine wiring harness clip (2) from the upper battery box.

2007 Hummer H3

2007 ENGINE Engine Electrical - H3