Control Module: Testing and Inspection
TCM INSPECTIONTerminal Voltage Table (Reference)
Connector Pin Identification
Terminals 1A through 1H
Terminals 1I through 1Z
Terminals 1AA through 2N
Terminals 2P through 2AA
Note:
^ Use the ground of terminal 1C and 1Y of the TCM when measuring terminal voltage, as an error may occur when connecting the negative circuit tester to ground.
Inspection Using An Oscilloscope (Reference)
Input/turbine speed sensor signal
^ TCM terminal: 1 N (+)-2F (-)
^ Oscilloscope setting: 1 V/DIV (Y) 1 ms/DIV (X)
^ Measuring condition: Turbine speed at 700 rpm, N position
Intermediate sensor signal
^ TCM terminal: 1 K (+)-1 X (-)
^ Oscilloscope setting: 4 V/DIV (Y) 0.2 ms/DIV (X)
^ Measuring condition: Vehicle speed at 40 km/h {25 mph}, 4GR
Vehicle speedometer sensor signal
^ TCM terminal: 1M (+)-1V (-)
^ Oscilloscope setting: 4 V/DIV (Y) 1 ms/DIV (X)
^ Measuring condition: Vehicle speed at 40 km/h {25 mph}
Pressure control solenoid signal
^ TCM terminal: 2Y (+)-2P (-)
^ Oscilloscope setting: 5 V/DIV (Y) 5 ms/DIV (X)
^ Measuring condition: Idle after warm-up
2-4 brake solenoid valve signal
^ TCM terminal: 2V (+)-2P (-)
^ Oscilloscope setting: 5 V/DIV (Y) 5 ms/DIV (X)
^ Measuring condition: Idle after warm-up
High clutch solenoid valve signal
^ TCM terminal: 2U (+)-2P (-)
^ Oscilloscope setting: 5 V/DIV (Y) 5 ms/DIV (X)
^ Measuring condition: Idle after warm-up
TCC solenoid valve signal (lock up off)
^ TCM terminal: 2S (+)-2P (-)
^ Oscilloscope setting: 5 WDIV (Y) 5 ms/DIV (X)
^ Measuring condition: Idle after warm-up
TCC solenoid valve signal (lock up on)
^ TCM terminal: 2S (+)-2P (-)
^ Oscilloscope setting: 5 V/DIV (Y) 5 ms/DIV (X).
^ Measuring condition: Drive the vehicle with lock up