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Home >> Chevrolet >> 2007 >> Impala V8-5.3L >> Repair and Diagnosis >> Starting and Charging >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data Definitions
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Scan Tool Data Definitions



Scan Tool Data Definitions

Battery Voltage
- The scan tool displays 0-20 Volts. The scan tool displays the voltage as received by the Module.

Battery Voltage Signal
- The scan tool displays 0-20 Volts. The scan tool displays the voltage as received by the Module.

Crank Request Signal
- The scan tool displays Yes/No. The scan tool displays No until the ignition is placed into the START position then Yes is displayed.

GEN F-Terminal Signal
- The scan tool displays 0-100%. The scan tool displays 0-100% until the engine is started and the engine control module (ECM) receives a signal from the generator then OK is displayed.

GEN L-Terminal Command
- The scan tool displays 0-100%. The scan tool displays the percentage of the output voltage of the generator.

GEN L-Terminal Circuit Status
- The scan tool displays Incomplete, Short Gnd / Open, Short to B+, or OK. The scan tool displays the status of the GEN-L Terminal circuit.

Ignition 1 Signal
- The scan tool displays 0-20 Volts. The scan tool displays the voltage as received on the Ignition 1 circuit to the module.

Ignition Accessory Signal
- The scan tool displays ON/OFF. The scan tool displays if the ignition 0 signal is On or OFF.

Ignition Voltage Signal
- The scan tool displays Present/Not Present. The scan tool displays the status of the ignition voltage signal on the theft deterrent module (TDM).

PNP Switch (If Equipped)
- The scan tool displays Park/Neutral or In Gear. The scan tool displays the position of the transmission setting.

Start Disabled
- The scan tool displays YES/NO. The scan tool displays YES if the TDM has disabled the starting function.

Starter Relay Command
- The scan tool displays ON/OFF. The scan tool displays Off until the ignition is placed into the CRANK position, then it reads On.

Starter Relay Circuit Status
- The scan tool displays Incomplete, Short Gnd/Open, Short to B+, or OK. The scan tool displays the status of the STRTR relay.

Start Up State of Charge
- The scan tool displays 1-100%. The scan tool displays the state of charge at initial key up.

Prev. State of Charge
- The scan tool displays 0-100%. The scan tool displays the state of charge from the previous ignition cycle.

State of Charge
- The scan tool displays 0-100%. The scan tool displays the present state of charge.

State of Charge Low
- The scan tool displays YES/NO. The scan tool displays YES if the present state of charge is low.

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