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Home >> Hummer >> 2007 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> Scan Tool Data Definitions
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Scan Tool Data Definitions

Crank Request Signal

The scan tool displays Yes/No. The scan tool displays Yes when the powertrain control module (PCM) receives a crank request.

Ignition 1 Signal

The scan tool displays voltage. The scan tool displays the current voltage at the battery.

GEN L-Terminal Signal Command

The scan tool displays On/Off. The scan tool displays Off until the engine is started, then it will display On.

GEN F-Terminal Signal

The scan tool displays 0%-100%. The scan tool displays 0%-5% until the engine is running, then the percentage value varies depending on electrical loads.

TR Sw.

The scan tool displays Park, Reverse, Neutral, Drive 4, Drive 3, Drive 2 and Drive 1. The scan tool displays the position of the transmission range switch.