Scan Tool Testing and Procedures

Scan Tool Data
As the data values given in the following table are standard values estimated on the basis of values obtained from the normally operating vehicles by using a scan tool, use them as reference values. Even when the vehicle is in good condition, there may be cases where the checked value does not fall within each specified data range. Therefore, judgment as abnormal should not be made by checking with these data alone.
Also, condition in the following table that can be checked by the scan tool are those detected by TCM and output from TCM as commands and there may be cases where the automatic transaxle or actuator is not operating (in the condition) as indicated by the scan tool.

Part 1 Of 2:

Part 2 Of 2:

NOTE: The following scan tool data related to automatic transaxle can be checked only by communicating with TCM.

Scan Tool Data Definitions:
GEAR POSITION (P/N OR R/1/2/3/4)
Current gear position computed by throttle position coming from ECM and vehicle speed.

ENGINE SPEED (RPM)
Engine speed computed by reference pulses from crankshaft position sensor.

INPUT SHAFT REV (INPUT SHAFT REVOLUTION, RPM)
Input shaft revolution computed by reference pulses coming from input shaft speed sensor on transaxle case.

OUTPUT SHAFT REV (OUTPUT SHAFT REVOLUTION, RPM)
Output shaft revolution computed by reference pulses coming from output shaft speed sensor on transaxle case.

BATTERY VOLT. (BATTERY VOLTAGE, V)
Battery voltage read by TCM as analog input signal by TCM.

ATF TEMP. (ATF TEMPERATURE, °C, °F)
ATF temperature decided by signal from transmission fluid temperature sensor installed in valve body.

SHIFT SOL #1 COM/MON (SHIFT SOLENOID-A (NO.1) COMMAND/MONITOR, ON/OFF)
COM-ON: ON command being outputted to shift solenoid-A (No.1)
COM-OFF: ON command not being outputted to shift solenoid-A (No.1)
MON-ON: Electricity being passed to shift solenoid-A (No.1)
MON-OFF: Electricity not being passed to shift solenoid-A (No.1)

SHIFT SOL #2 COM/MON (SHIFT SOLENOID-B (NO.2) COMMAND/MONITOR, ON/OFF)
COM-ON: ON command being outputted to shift solenoid-B (No.2)
COM-OFF: ON command not being outputted to shift solenoid-B (No.2)
MON-ON: Electricity being passed to shift solenoid-B (No.2)
MON-OFF: Electricity not being passed to shift solenoid-B (No.2)

TCC SOL COM/MON (TCC SOLENOID COMMAND/MONITOR, ON/OFF)
COM-ON: ON command being outputted to shift solenoid-B (No.2)
COM-OFF: ON command not being outputted to shift solenoid-B (No.2)
MON-ON: Electricity being passed to shift solenoid-B (No.2)
MON-OFF: Electricity not being passed to shift solenoid-B (No.2)

PRESS COST SOL (PRESSURE CONTROL SOLENOID, %)
Electric current value ratio between electric current value being outputted from TCM to solenoid and maximum value can be outputted by TCM.

VEHICLE SPEED (KPH/MPH)
Vehicle speed computed by reference pulses coming from vehicle speed sensor on transaxle case.

O/D OFF SWITCH (ON/OFF)
Inputted signal from O/D off switch on selector knob.
ON: O/D off switch ON
OFF: O/D off switch OFF

TRANS. RANGE (P/R/N/D/2/L)
Transaxle range detected by signal fed from transmission range sensor.

D RANGE SIGNAL (P/N RANGE/D RANGE)
Transaxle range detected by signal fed from transmission range sensor.

THROTTLE POSITION (THROTTLE POSITION,%)
Throttle opening ratio computed by duty signal from ECM.

BRAKE SWITCH (ON/OFF)
Inputted signal from brake light switch on pedal bracket.
ON: Brake pedal depressed
OFF: Brake pedal released

TORQ REDUCTION SIG (TORQUE REDUCTION SIGNAL, ON/OFF)
ON: Signal which TCM require ECM to reduce output torque at shifting gear
OFF: Signal which TCM does not require ECM to reduce output torque

COOLANT TEMP. (ENGINE COOLANT TEMPERATURE, VERY LOW/LOW/HIGH)
Engine coolant temperature computed by duty signal from ECM.

A/C SWITCH
ON: Signal which inform that air conditioner compressor is turned ON.
OFF: Signal which inform that air conditioner compressor is not turned ON.

ENGINE TORQUE (Nm)
Engine torque computed by duty pulse signal outputted from ECM.

CRUISE CONT SIG
ON: signal which inform that lock-up inhibit signal from ECM is turned ON.
OFF: Signal which inform that lock-up inhibit signal from ECM is turned OFF.