Scan Tool Data Definitions

Scan Tool Data Definitions
1-3 Clutch Slip
- This parameter displays the slip speed of the 1-3 clutches. The scan tool displays in RPM.

1-3 Clutch Status
- This parameter displays the commanded state of the 1-3 clutches. The scan tool displays Applied/Released.

4th Clutch Slip
- This parameter displays the slip speed of the 4th clutch. The scan tool displays in RPM.

4th Clutch Status
- This parameter displays the commanded state of the 4th clutch. The scan tool displays Applied/Released.

Brake Switch
- This parameter displays the status of the brake switch circuit input. Applied indicates a zero voltage input, brake pedal applied. Released indicates a voltage input, brake pedal released. The scan tool displays Applied or Released.

Calc. Throttle Position
- This parameter displays a calculated value, which is determined by the accelerator pedal position and the actual throttle position, used to optimize transmission controls. The parameter represents the driver's intended request for torque or acceleration. The range is 0-100%, where 0% represents an idle or coast request and 100% represents a request for wide open throttle (WOT).

Calc. Trans Input Speed
- This parameter displays the rotational calculated speed of the transmission input shaft. The scan tool displays input shaft speed as revolutions per minute (RPM).

Direct 2-3-4 Clutch Slip
- This parameter displays the slip speed of the Direct 2-3-4 clutch. The scan tool displays in RPM.

Direct 2-3-4 Clutch Status
- This parameter displays the commanded state of the Direct 2-3-4 clutch. The scan tool displays Applied/Released.

Driver Shift Control
- This parameter displays Active or Inactive. The scan tool displays Active when the gear selector is in the sport (S) position, which enables TAP shift. The scan tool displays Inactive when the gear selector is not in the S position, TAP shift disabled.

Driver Shift Request
- This parameter displays the current request from the TAP Shift System. This parameter will display upshift, downshift or invalid, depending on the amount of voltage measured at the remote shift selector input, and will also display none when there is no request.

ECT
- This parameter displays the input signal from the engine coolant temperature (ECT) sensor. ECT is high at 151°C (304°F) when the signal voltage is low, 0 volt. ECT is low at -40°C (-40°F) when the signal voltage is high, 5 volt.

Engine Speed
- This parameter displays the rotational speed of the engine expressed as revolutions per minute.

Engine Run Time
- This parameter displays in Hours/Minutes/Seconds, the length of time the engine has been running.

Engine Torque
- This parameter displays a calculated value based on engine load, throttle position, mass air flow, and other engine inputs. This parameter is accurate to within 20 N.m (15 ft lb) of actual measured engine torque.

Gear Ratio
- This parameter displays the actual transmission gear ratio. The scan tool displays the gear ratio calculated from the automatic transmission input shaft speed sensor (AT ISS) and the automatic transmission output shaft speed sensor (AT OSS) inputs.

Ignition Voltage
- This parameter displays the system voltage measured at the ignition feed.

IMS
- This parameter displays PARK, PARK/REVERSE, REVERSE, REVERSE/NEUTRAL, NEUTRAL, NEUTRAL/DRIVE 4, DRIVE 4, DRIVE 4/DRIVE 3, DRIVE 3, DRIVE 3/DRIVE 2, DRIVE 2, DRIVE 2/DRIVE 1, DRIVE 1 or INVALID. The IMS Range display represents a decoded status of the four inputs from the IMS. The combination of IMS inputs are used to determine which position the manual valve is in at any time.

IMS A/B/C/P
- This parameter displays the status of the four A/B/C/P inputs from the automatic transmission internal mode switch. I indicates an ignition voltage signal. LOW indicates a 0 voltage signal. The scan tool will display HI/LOW, HI/LOW, HI/LOW, HI/LOW.

ISS/OSS Supply Voltage
- This parameter displays OK, Out of Range.

Line PC Sol. CKT Status
- This parameter displays whether an open, short to voltage or ground exists in the line pressure control (PC) solenoid valve feedback signal circuit. The scan tool displays OK, Open/Short to Volts, Short to GND, or Indeterminate.

Output Shaft Direction
- This parameter displays the direction of the transmission output shaft speed sensor. The scan tool displays Forward/Reverse/Unknown/Invalid.

Line PC Sol. Pressure Command
- This parameter displays results in kPa (psi).

Low 1-2 Clutch Slip
- This parameter displays the slip speed of the low 1-2 clutch. The scan tool displays in RPM.

Low 1-2 Clutch Status
- This parameter displays the commanded state of the low 1-2 clutch. The scan tool displays Applied/Released.

PC Sol. 2 CKT Status
- This parameter displays OK, Open/Short to GND, Short to Volts, or Indeterminate.

PC Sol. 2 Pressure Cmd.
- This parameter displays kpa (psi).

PC Sol. 3 CKT Status
- This parameter displays OK, Open/Short to GND, Short to Volts, or Indeterminate.

PC Sol. 3 Pressure Cmd.
- This parameter displays kpa (psi).

PC Sol. 4 CKT Status
- This parameter displays OK, Open/Short to GND, Short to Volts, or Indeterminate.

PC Sol. 4 Pressure Cmd.
- This parameter displays kpa (psi).

PC Sol. 5 CKT Status
- This parameter displays OK, Open/Short to GND, Short to Volts, or Indeterminate.

PC Sol. 5 Pressure Cmd.
- This parameter displays kpa (psi).

Shift Sol. 1 CKT Status
- This parameter displays OK, Open/Short to GND, Short to Volts, or Indeterminate.

Shift Solenoid 1
- This parameter displays the commanded state of the reverse, 1st shift solenoid valve (S1). The scan tool displays On/Off.

Shift Sol. 2 CKT Status
- This parameter displays OK, Open/Short to GND, Short to Volts, or Indeterminate.

Shift Solenoid 2
- This parameter displays the commanded state of the 2-3, 3-4 shift solenoid valve (S2). The scan tool displays On/Off.

TCM Power Up Temperature
- This parameter displays results of the TCM temperature at power up in °C (°F).

TCM Temperature
- This parameter displays results in °C (°F).

TFP Switch 1
- This parameter displays the state of the first clutch oil pressure switch. The scan tool displays HI/LOW.

TFP Switch 3
- This parameter displays the state of the 3rd clutch oil pressure switch. The scan tool displays HI/LOW.

TFP Switch 4
- This parameter displays the state of the 4th clutch oil pressure switch. The scan tool displays HI/LOW.

TFP Switch 5
- This parameter displays the state of the fifth clutch oil pressure switch. The scan tool displays HI/LOW.

Trans. Fluid Temp.
- This parameter displays the input signal of the transmission fluid temperature sensor. Transmission fluid temperature is high, 151°C (304°F), when signal voltage is low, 0 volt. Transmission fluid temperature is low, -40°C (-40°F), when signal voltage is high, 5 volt.

Transmission OSS
- This parameter displays the rotational speed of the transmission output shaft. The scan tool displays output shaft speed as revolutions per minute (RPM).

Vehicle Speed
- This parameter displays the rotational speed of the transmission output shaft. The scan tool displays output shaft speed as revolutions per minute (RPM).