Scan Tool Data Definitions

Brake Fluid Level Status: The scan tool displays OK or Low. The body control module (BCM) monitors the signal circuit of the brake fluid level switch. A closed switch is displayed as Low with low brake fluid level.

Calibration Version: The scan tool displays the calibration version number of the instrument panel cluster (IPC).

Chime State: The scan tool displays No Request, On Queued, On, or Off Queued. The state of the chime as commanded by the IPC.

Coolant Level: The scan tool displays OK or Low. The state of the coolant level switch as commanded by the BCM.

Cruise Control Active: The scan tool displays No/Yes. This is the state of the cruise control switch input to the powertrain control module (PCM).

Driver Door Switch: The scan tool displays Open or Closed. The state of the driver door switch as commanded by the BCM.

ECT: The scan tool displays -40 to +151°C (-40 to +304°F). The engine control module (ECM)/PCM monitors the voltage at the signal circuit of the engine coolant temperature sensor. The voltage is inversely proportional to the engine coolant temperature.

Engine Oil Life Remaining: The scan tool displays 0-100%. The ECM/PCM calculates the remaining engine oil life.

Engine Oil Pressure Switch: The scan tool displays Ok.Low. This is the state of the engine oil pressure switch as commanded by the PCM.

Engine Speed: The scan tool displays 0-9999 RPM. Engine speed is computed by the ECM/PCM. It should remain close to desired idle under various engine loads with the engine idling.

Fuel Level: The scan tool displays 0-100%. The ECM calculates the amount of fuel remaining in the tank based on the input from the fuel level sensor.

Fuel Level Sensor: The scan tool displays the state of the fuel level in Volts. The ECM/PCM monitors the signal circuit of the fuel level sensor and displays the current voltage.

Fuel Tank Level Remaining: 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.

High Beam Switch: The scan tool displays On or Off. The state of the high beam indicator as commanded by the IPC.

Ignition 1 Signal: The scan tool displays 9-16 Volts. This is the voltage at the ignition 1 voltage circuit of the PCM.

Ignition Accessory Signal: The scan tool displays On/Off. The scan tool displays On when voltage is present at the ignition accessory signal circuit.

I/P Dimmer Input: The scan tool displays the IPC dimmer input in volts.

I/P Dimmer Output: The scan tool displays the IPC dimmer output in percentage.

Key in Ignition: The scan tool displays Yes or No. The state of the key in ignition switch as commanded by the BCM.

Last Chime Active: The scan tool displays Seat Belt, Key In, Oil Rest, Delayed Lock, Headlamp, Park Brake, Check Gages, or Turn Signal. The IPC stores the last chime active.

Left Turn Signal: The scan tool displays On or Off. The state of the left turn signal as commanded by the IPC.

LF Turn Signal: The scan tool displays On or Off. The state of the left front turn signal as commanded by the BCM.

Low Oil Pressure: The scan tool display OK or Low. The state of the engine oil pressure switch as commanded by the ECM.

LR Turn Signal: The scan tool displays On or Off. The state of the left rear turn signal as commanded by the BCM.

MIL Circuit Status: The scan tool displays Fail, Indeterminate or Pass. This is the status of the malfunction indicator lamp (MIL) circuit as monitored by the PCM.

MIL Command: The scan tool displays Off/On. This is the commanded state of the malfunction indicator lamp (MIL) by the PCM. The MIL should be On in the IPC when scan tool displays MIL Command is On.

Module Type-Export: The scan tool displays Yes or No. The type of BCM installed in the vehicle.

Non-Driven Wheel Speed: The scan tool displays km/h (mph). This is the vehicle Non-Driven Wheel Speed as provided by the PCM.

Odometer: The scan tool displays the current odometer reading in kilometers or miles as recorded in the IPC.

Park Brake Switch: The scan tool displays On or Off. The state of the park brake switch as commanded by the BCM.

Pass Door Switches: The scan tool displays Open or Closed. The state of the passenger door switch as monitored by the BCM.

Reduced Engine Power: The scan tool displays Inactive/Active. This is the state of the Reduced Engine Power indicator as commanded by the ECM. The IPC receives a serial data message requesting the illumination of the Reduced Engine Power indicator.

Right Turn Signal: The scan tool displays On or Off. The state of the right turn signal as commanded by the IPC.

RF Turn Signal: The scan tool displays On or Off. The state of the right front turn signal as commanded by the BCM.

RR Turn Signal: The scan tool displays On or Off. The state of the right rear turn signal as commanded by the BCM.

Security LED: The scan tool displays On or Off. The state of the security LED as commanded by the IPC.

Software Version: The scan tool displays the software version of the BCM.

Traction Switch: The scan tool displays On or Off. The state of the traction switch as monitored by the BCM.

Trip Odometer: The scan tool displays the current trip odometer reading in kilometers or miles as recorded in the BCM.

Trip Odometer Reset: The scan tool displays Pressed or Released. The state of the trip odometer reset switch as commanded by the IPC.

Turn/Hazard Input: The scan tool displays the turn/hazard input in volts as monitored by the BCM.

Vehicle Speed: The scan tool displays 0-255 km/h (0-155 mph). The ECM/PCM monitors the signal circuit of the vehicle speed sensor.

VIN: The current VIN number stored in the BCM.

VIN: The current VIN number stored in the IPC.