Scan Tool Data Definitions

The scan tool displays 0-20 volts. The scan tool displays the voltage as received on the battery positive voltage circuit of the body control module (BCM) or instrument panel cluster (IPC) module.

The scan tool displays Yes/No. The scan tool displays the status of the crank request signal.

The scan tool displays P/N/1st/2nd/3rd/4th/5th/Reverse. The scan tool displays the current gear that the transmission is in.

The scan tool displays the percentage of the field current.

The scan tool displays On/Off. The scan tool displays Off until the engine is running, at which time it will display On.

The scan tool displays 0-100 percent. The scan tool displays the percentage of the output voltage of the generator.

The scan tool displays 0-20 volts. The scan tool displays the voltage as received on the ignition 1 circuit to the powertrain control module (PCM).

The scan tool displays On/Off. The scan tool displays the status of the signal received on the ignition 1 circuit to the engine control module (ECM).

The scan tool displays Drive 3, Drive 4\Drive 3, Park\Reverse, Reverse, Drive 3\Drive 2, Drive 2, Park, Invalid, Neutral\Drive 4, Drive 4, Neutral Reverse\Neutral, Drive 1, Drive2\Drive 1, Invalid, Open. The scan tool displays the physical position of the internal mode switch (IMS) of the transmission.

The scan tool displays Park/Neutral or In Gear. The scan tool displays the position of the transmission setting.

The scan tool displays 1-100 percent. The scan tool displays the percentage of the battery current sensor pulse width modulation (PWM) duty cycle signal.

The scan tool displays OK/Open/Short/Invalid. The scan tool displays history status of the crank relay.

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

The scan tool displays Released/Cranking. The scan tool displays Cranking when the ignitions switch is in the Start position.