TCM INSPECTION [FS5A-EL]

id051721800300

Caution

•  Water or foreign objects entering the connector can cause a poor connection or corrosion. Be sure not to drop water or foreign objects on the connector when disconnecting it.

Note

•  The TCM terminal voltages vary with changes in measuring and vehicle conditions. Always carry out a total inspection of the input and output systems, and the TCM to determine the cause of trouble. Otherwise, a mis-diagnosis could occur.

1.  Disconnect the negative battery cable.

2.  Remove the TCM. (See TCM REMOVAL/INSTALLATION [FS5A-EL].)

3.  Connect the TCM connector.

4.  Connect the negative battery cable.

5.  Connect the voltmeter (–) lead to body GND.

6.  Measure the voltage at each terminal.

•  If any incorrect voltage is detected, inspect the related system(s), wiring harnesses and connector(s) referring to the “Inspection Item“ column in the “TCM Terminal Voltage“.

Terminal Voltage Table (Reference)

Note

•  Use the GND of terminal 1O and 1P of the TCM when measuring terminal voltage, as an error may occur when connecting the negative circuit tester to GND.

am6zzw00004850

Terminal	Connected to	Test condition	Voltage (V)	Action
1A	Shift solenoid A	(See Shift solenoid A.)		•  Shift solenoid A (See SOLENOID VALVE INSPECTION (PRIMARY CONTROL VALVE BODY) [FS5A-EL].) •  Related harness
1B	Shift solenoid B	(See Shift solenoid B.)		•  Shift solenoid B (See SOLENOID VALVE INSPECTION (PRIMARY CONTROL VALVE BODY) [FS5A-EL].) •  Related harness
1C	Shift solenoid C	(See Shift solenoid C.)		•  Shift solenoid C (See SOLENOID VALVE INSPECTION (PRIMARY CONTROL VALVE BODY) [FS5A-EL].) •  Related harness
1D	Pressure control solenoid B	(See Pressure control solenoid B.)		•  Pressure control solenoid B (See SOLENOID VALVE INSPECTION (SECONDARY CONTROL VALVE BODY) [FS5A-EL].) •  Related harness
1E	Pressure control solenoid A (+)	(See Pressure control solenoid A (+).)		•  Pressure control solenoid A (See SOLENOID VALVE INSPECTION (PRIMARY CONTROL VALVE BODY) [FS5A-EL].) •  Related harness
1F	Shift solenoid D	D range 1GR	Below 1.0	•  Shift solenoid D (See SOLENOID VALVE INSPECTION (PRIMARY CONTROL VALVE BODY) [FS5A-EL].) •  Related harness
		D range 2GR	Below 1.0
		D range 3GR	Below 1.0
		D range 4GR	B+
		D range 5GR	B+
1G	Pressure control solenoid A (–)	(See Pressure control solenoid A (–).)		•  Pressure control solenoid A (See SOLENOID VALVE INSPECTION (PRIMARY CONTROL VALVE BODY) [FS5A-EL].) •  Related harness
1H	Shift solenoid E	TCC released	Below 1.0	•  Shift solenoid E (See SOLENOID VALVE INSPECTION (PRIMARY CONTROL VALVE BODY) [FS5A-EL].) •  Related harness
		TCC engaged	B+
1I	—	—	—	—
1J	Shift solenoid F	D range 1GR	B+	•  Shift solenoid F (See SOLENOID VALVE INSPECTION (SECONDARY CONTROL VALVE BODY) [FS5A-EL].) •  Related harness
		D range 2GR	B+
		D range 3GR	B+
		D range 4GR	B+
		D range 5GR	Below 1.0
1K	Battery	Under any condition	B+	•  Battery (See BATTERY INSPECTION [MZR 1.8, MZR 2.0, MZR 2.5].) (See BATTERY INSPECTION [MZR 2.0 DISI].) •  Related harness
1L	—	—	—	—
1M	AT Main relay	Switch the ignition to off	Below 1.0	•  AT Main relay (See RELAY INSPECTION.) •  Related harness
		Switch the ignition to ON	B+
1N	AT Main relay	Switch the ignition to off	Below 1.0	•  AT Main relay (See RELAY INSPECTION.) •  Related harness
		Switch the ignition to ON	B+
1O	GND	Under any condition	Below 1.0	•  Related harness
1P	GND	Under any condition	Below 1.0	•  Related harness
2A	—	—	—	—
2B	M range switch	M range	Below 1.0	•  M range switch (See SELECTOR LEVER COMPONENT INSPECTION.) •  Related harness
		Except M range	B+
2C	—	—	—	—
2D	Up switch	Selector lever up-shift position	Below 1.0	•  Up switch (See SELECTOR LEVER COMPONENT INSPECTION.) •  Related harness
		Except selector lever up-shift position	B+
2E	—	—	—	—
2F	Down switch	Selector lever down-shift position	Below 1.0	•  Down switch (See SELECTOR LEVER COMPONENT INSPECTION.) •  Related harness
		Except selector lever down-shift position	B+
2G	—	—	—	—
2H	TR switch	P position	4.3—4.8	•  TR switch (See TRANSAXLE RANGE (TR) SWITCH INSPECTION [FS5A-EL].) •  Related harness
		R position	3.8—4.2
		N position	3.0—3.5
		D range	2.2—2.7
		M range	2.2—2.7
2I	Input/turbine speed sensor (+)	(See Input/turbine speed sensor.)		•  Input/turbine speed sensor (See INPUT/TURBINE SPEED SENSOR INSPECTION [FS5A-EL].) •  Related harness
2J	Oil pressure switch	1GR	Below 1.0	•  Oil pressure switch (See OIL PRESSURE SWITCH INSPECTION [FS5A-EL].) •  Related harness
		2GR	Below 1.0
		3GR	Below 1.0
		4GR	B+
		5GR	B+
2K	Input/turbine speed sensor (-)	(See Input/turbine speed sensor.)		•  Input/turbine speed sensor (See INPUT/TURBINE SPEED SENSOR INSPECTION [FS5A-EL].) •  Related harness
2L	Intermediate sensor	(See Intermediate sensor.)		•  Intermediate sensor (See INTERMEDIATE SENSOR INSPECTION [FS5A-EL].) •  Related harness
2M	TFT sensor	ATF temperature 20 °C	Approx. 3.3	•  TFT sensor (See TRANSAXLE FLUID TEMPERATURE (TFT) SENSOR INSPECTION [FS5A-EL].) •  Related harness
		ATF temperature 65 °C	Approx. 1.3
2N	Steering shift switch	Under any condition	Below 1.0	•  Related harness
2O	TFT sensor, TR switch	Under any condition	Below 1.0	•  Related harness
2P	VSS	(See VSS.)		•  VSS (See VEHICLE SPEED SENSOR (VSS) INSPECTION [FS5A-EL].) •  Related harness
2Q	Steering shift switch	Up switch and down switch released (Steering shift switch)	Approx. 5.0	•  Steering shift switch (See STEERING SHIFT SWITCH INSPECTION.) •  Related harness
		Up switch operated (Steering shift switch)	Approx. 2.8
		Down switch operated (Steering shift switch)	Approx. 2.2
2R	AT Main relay	Switch the ignition to off	Below 1.0	•  AT main relay (See RELAY INSPECTION.) •  Related harness
		Switch the ignition to ON	Approx. 0.8
2S	—	—	—	—
2T	—	—	—	—
2U	—	—	—	—
2V	—	—	—	—
2W	CAN module	Because this terminal is for CAN, no valid determination of terminal voltage is possible.
2X	CAN module	Because this terminal is for CAN, no valid determination of terminal voltage is possible.

Input/Output Wave From (Reference)

Shift solenoid A

am6zzw00007176

TCM terminals

•  1A (+)—body GND (–)

Oscilloscope setting

•  5 V/DIV (Y), 5 ms/DIV (X), DC range

Test Condition

•  D range 4GR

Shift solenoid B

am6zzw00007176

TCM terminals

•  1B (+)—body GND (–)

Oscilloscope setting

•  5 V/DIV (Y), 5 ms/DIV (X), DC range

Test Condition

•  D range 1GR

Shift solenoid C

am6zzw00007176

TCM terminals

•  1C (+)—body GND (–)

Oscilloscope setting

•  5 V/DIV (Y), 5 ms/DIV (X), DC range

Test Condition

•  D range 1GR

Pressure control solenoid B

am6zzw00004856

TCM terminals

•  1D (+)—body GND (–)

Oscilloscope setting

•  5 V/DIV (Y), 5 ms/DIV (X), DC range

Test Condition

•  Shifting from 4GR to 5GR or from 5GR to 4GR

Pressure control solenoid A (+)

am6zzw00004855

TCM terminals

•  1E (+)—body GND (–)

Oscilloscope setting

•  5 V/DIV (Y), 1 ms/DIV (X), DC range

Test Condition

•  The following conditions are met:

―  Switch the ignition to ON (engine off)

―  P position

―  Accelerator pedal fully depressed

Pressure control solenoid A (–)

am6zzw00007177

TCM terminals

•  1G (+)—body GND (–)

Oscilloscope setting

•  200 mV/DIV (Y), 1 ms/DIV (X), DC range

Test Condition

•  The following conditions are met:

―  Switch the ignition to ON (engine off)

―  P position

―  Accelerator pedal fully depressed

Input/turbine speed sensor

am6zzw00006790

TCM terminals

•  2I (+)—2K (–)

Oscilloscope setting

•  1 V/DIV (Y), 2 ms/DIV (X), DC range

Test Condition

•  Idle at P position after warm-up

Intermediate sensor

am6zzw00004851

TCM terminals

•  2L (+)—body GND (–)

Oscilloscope setting

•  1 V/DIV (Y), 200 µs/DIV (X), DC range

Test Condition

•  The following conditions are met:

―  Vehicle speed: 30 km/h {19 mph}

―  3 GR

VSS

am6zzw00006795

TCM terminals

•  2P (+)—body GND (–)

Oscilloscope setting

•  1 V/DIV (Y), 2 ms/DIV (X), DC range

Test Condition

•  The following conditions are met:

―  Vehicle speed: 30 km/h {19 mph}

―  3 GR