Scan Tool Data Definitions

The scan tool displays the GM eight digit part number of the instrument panel cluster (IPC).

The scan tool displays On or Off. The state of the ABS warning indicator commanded by the IPC. The IPC receives a class 2 message from the EBCM.

The scan tool displays 9-16 volts. The voltage measured at the IPC accessory positive voltage circuit.

The scan tool displays On or Off. The state of the air bag indicator as commanded by the IPC. The IPC receives a class 2 message from the SDM.

The scan tool displays the gear position of the vehicle. As detected by the PCM.

The scan tool displays On or Off. The state of the door ajar indicator as commanded by the IPC.

The scan tool displays OK or Low. The PCM monitors the signal circuit of the engine oil level switch. An open switch with low oil level is displayed as Low.

The scan tool displays 0-100%. The PCM calculates the remaining engine oil life.

The scan tool displays OK or Low. The PCM monitors the signal circuit of the engine oil pressure switch. An closed switch with low oil pressure is displayed as Low.

The scan tool displays On or Off. The IPC monitors the signal circuit of the fog lamp switch. An open switch is displayed as Off.

The scan tool displays 0-100%. The PCM calculates the amount of fuel remaining in the tank based on the input from the fuel level sensor. The IPC receives a class 2 message from the PCM indicating the fuel level percent.

The scan tool displays On or Off. The IPC monitors the signal circuit of the liftgate ajar switch. An open switch is displayed as Off.

The scan tool displays Yes or No. The state of the vehicle speed detected by the IPC. The IPC receives a class 2 message from the PCM.

The scan tool displays 9-16 volts. The voltage measured at the IPC ignition 0 positive voltage.

The scan tool displays 9-16 volts. The voltage measured at the ignition 1 positive voltage circuit to the IPC.

The scan tool displays On or Off. The IPC monitors the signal circuit of the brake fluid switch. An open switch is displayed as Off.

The scan tool displays Yes or No. The IPC sends a class 2 message to the EBCM indicating low brake fluid.

The scan tool displays 0-7969 milliseconds. The time measured for the low fuel telltale to come on based on slosh filtering in the fuel tank.

The scan tool displays Yes or No. The state of the wheel speed detected by the IPC. The IPC receives a class 2 message from the EBCM. The wheel speed is used as a back up if the IPC does not receive a valid vehicle speed class 2 message from the PCM.

The scan tool displays Yes or No. The state of the odometer rolling count detected by the IPC. The IPC receives a class 2 message from the PCM.

The scan tool displays On or Off. The state of the park brake indicator as commanded by the IPC. The IPC monitors the signal circuit of the park brake switch.

This scan tool displays the four digit number of the PROM incorporated into the IPC.

The scan tool displays On or Off. The state of retained accessory power (RAP) as commanded by the IPC to the RAP relay input.

This scan tool displays the four digit number of the SDM incorporated into the IPC.

The scan tool displays On or Off. The state of the traction indicator as commanded by the IPC.

The scan tool displays On or Off. The state of the trailer tow when connected and either the left or right turn signal input is detected by the IPC. The hazard lamp/turn signal flasher sends a low input signal to the IPC.

The scan tool displays Active or Inactive. The state of internal trip reset switch.

The scan tool displays 0-7969 milliseconds. The time measured for the trip reset switch when pressed.

The scan tool displays 0-255 km/h. The PCM monitors the voltage at the signal circuit of the vehicle speed sensor. The voltage is proportional to the vehicle speed.