Scan Tool Data Definitions Part 3

Part 3


Shift Sol. 1 Driver: Display shows OK, Open/Short, Over Current. The PCM monitors output driver (ODM) #2 output #5 for an open or shorted condition if one of the conditions exists the fault line will go low. The scan tool will display the condition that is present.

Shift Sol. 2 Driver: Display shows OK, Open/Short, Over Current. The PCM monitors output driver (ODM) #2 output #6 for an open or shorted condition if one of the conditions exists the fault line will go low. The scan tool will display the condition that is present.

Shift Sol. Valve 1: Display shows shift solenoid 1 as On or Off. When the automatic transaxle is in first or fourth gear, the scan tool should display On. When the transaxle is in second or third gear, the scan tool should display Off.

Shift Sol. Valve 2: Display shows shift solenoid 2 as On or Off. When the automatic transaxle is in first or second gear, the scan tool should display On. When the transaxle is in third or fourth gear, the scan tool should display Off.

Short Term FT Bank 1: Display shows counts from 0 to 255 and percentage from -100% to 99%. The normal position for the short term fuel trim is 128 counts or 0%. A count greater than 128 or a percentage greater than 0% indicates that time is being added to the injector pulse width, increasing the amount of fuel to the engine to compensate for a lean condition sensed by the bank 1 (rear) HO2S. A count less than 128 or less than 0% indicates time is being subtracted from the injector pulse width reducing the amount of fuel to the engine to compensate for a rich condition sensed at the bank 1 (rear) HO2S.

Short Term FT Bank 2: Display shows counts from 0 to 255 and percentage from -100% to 99%. The normal position for the short term fuel trim is 128 counts or 0%. A count greater than 128 or a percentage greater than 0% indicates that time is being added to the injector pulse width, increasing the amount of fuel to the engine to compensate for a lean condition sensed by the bank 1 (rear) HO2S. A count less than 128 or less than 0% indicates time is being subtracted from the injector pulse width reducing the amount of fuel to the engine to compensate for a rich condition sensed at the bank 2 (front) HO2S.

Spark: Display shows spark advance in degrees from -90 to 90. A negative number indicates degrees of retard. This is a display of the spark advance calculation which the PCM is programming into the ignition system. The PCM computes the desired spark advance using data such as Engine Temperature, RPM, Engine Load, Vehicle Speed and Operating Mode.

TCC Enable: Display shows TCC as Disabled or Enabled. This display is the allowed state of this Torque Converter Clutch.

TCC Brake Switch: Display shows Released or Applied. This parameter indicates the state of the TCC brake switch circuit input. Released indicates a B+ voltage input,brake switch closed - brake pedal released. Applied indicates a 0 voltage input brake switch open - brake pedal applied.

TCC Duty Cycle: Display shows TCC Duty Cycle in percent from 0 to 100. This parameter is the commanded percent of ON time of the TCC solenoid. 100% represents an On, energized, commanded state. 0% represents a Off, non-energized, commanded state.

TCC Enable: Display shows TCC as Disabled or Enabled. This display is the allowed state of the Torque Converter Clutch.

TCC Slip Speed: Display shows TCC Slip Speed in RPM from -4096 to 4064. Display shows the amount of slip between the engine and transaxle input shaft.

TCC Solenoid Driver: Display shows OK, Open/Short, Over Current. The PCM monitors output driver (ODM) #2 output #7 for an open or shorted condition if one of the conditions exists the fault line will go low. The scan tool will display the condition that is present.

TCM Calibration ID.: The display shows the engineering part number for the calibration software that is flashed into the PCM.

TCM Software ID: The display shows the engineering part number for the software that is flashed into the PCM.

Trans. Fluid Temp: Display shows -40°C (-40°F) to 215°C (419°F).This is the Transaxle fluid temperature in degrees.

Trans. Range or TFP Switch: Display shows Drive 1, Drive 2, Drive 3, Drive 4, Reverse, P/N, or Invalid. This is the decoded manual valve position from the transaxle range pressure switch.

Trans Range A/B/C or TFP Switch A/B/C: Display shows ON/OFF or High or Low. This shows the state of the three outputs from the transaxle range pressure switch which is used to indicate the actual manual valve position. ON or High = open circuit, OFF or Low = grounded circuit.

Throttle at Idle: Display shows No or Yes. This display indicates whether the TP Angle being monitored by the PCM is at 0 percent when the throttle is closed.

Total Misfire Failures Since First Fail: Display shows counts from 0 to 65535. The Misfire Failure counter shows the relative number of failed misfire tests since P0300 went active.

Total Misfire Passes Since First Fail: Display shows counts from 0 to 65535. The Misfire Passes counter shows the relative number of passed misfire tests since P0300 went active.

TP Angle: Display shows throttle angle in percent. Display is computed by the PCM from TP Sensor voltage. Display should read 0% at idle, 100% at wide open throttle (WOT).

TP Normalized: Display shows percent and degrees from 0 to 100 percent and 0.0 to 81.6 degrees. The PCM will compensate for deposits in the throttle body by learning the closed throttle position as zero percent and zero degrees.

TP Sensor: Display shows the amount of throttle opening in volts, with closed throttle near 0 volts and wide open throttle above 4.0 volts.

TP Sensor Learned Corr.: Display shows a value from -6.5 to +6.5 degrees. This display indicates the amount the TP sensor has been corrected to obtain the TP Normalized value of 0 degrees. The TP sensor is not physically adjustable. In order to compensate for manufacturing tolerances and also for throttle body bore deposit buildup the PCM will adjust the TP Normalized value using this correction factor. At key ON the PCM will slightly decrease this value in order to ensure that the throttle is at rest. If the throttle is at rest the slight decrease will be learned out. Refer to the TP Sensor Learned Closed Throttle Angle (DTC P1524) for TP learn description. When DTC P1524 fails this value is set to 0 degrees.

Traction Control: Display shows Inactive or Active. Display will show Active if the PCM receives a signal from the Electronic Brake and Traction Control Module, EBTCM, requesting torque reduction during a traction control maneuver.

Traction Control Torque: Display shows percent from 0 to 100. This is the calculated torque output from the engine to the transaxle used by the EBTCM for traction control system operation.

Trans. Oil Life: Display shows Transaxle Oil Life in percent from 0 to 100. This display represents the Transaxle Oil Life Index that is calculated and maintained by the PCM.

TWC Stage 1 Started: The display shows No or Yes. This display indicates that the first air/fuel transition of the idle catalyst test (P0420) is in progress.

TWC Stage 2 Started: The display shows No or Yes. This display indicates that the second air/fuel transition of the idle catalyst test (P0420) is in progess.

TWC Test Enabled The display shows No or Yes. This display indicates the Idle Catalyst Test (P0420) has started to run. There is a 5 second delay between the TWC Test Initialization Conditions Met and the idle catalyst test being enabled.

TWC Test Initialization Conditions Met: Display shows No or Yes. This display says that the idle conditions required to test the catalyst are met.

Vehicle Speed: Display shows vehicle speed in mph and km/h from 0 to 159 mph (0 to 255 km/h). The vehicle speed is converted into mph and km/h for display.

Vehicle Speed Driver: Display shows OK, Open/Short, Over Current. The PCM monitors output driver (ODM) A output #2 for an open or shorted condition if one of the conditions exists the fault line will go low. The scan tool will display the condition that is present.