Inspection of TCM and Its Circuits: Inspection

Remove TCM (1)from vehicle referring to "TRANSMISSION CONTROL MODULE (TCM) REMOVAL AND INSTALLATION :".
Connect TCM connectors (2) to TCM.
Check voltage at each terminal of connectors connected.

NOTE: As each terminal voltage is affected by battery voltage, confirm that it is 11 V or more when ignition switch is ON.

Fig 1: Connecting TCM Connectors 2 To TCM

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CONNECTOR G07 SPECIFICATION

Connector: G07
Terminal number	Wire color	Circuit	Normal voltage	Condition
1	RED	Transmission range sensor ("R" range)	8 - 14 V	Ignition switch ON, selector lever at "R" range
1	RED	Transmission range sensor ("R" range)	0 - 1 V	Ignition switch ON, selector lever at other than "R" range
2	WHT/ BLK	Transmission range sensor ("P" range)	8 - 14 V	Ignition switch ON, selector lever at "P" range
2	WHT/ BLK	Transmission range sensor ("P" range)	0 - 1 V	Ignition switch ON, selector lever at other than "P" range
3	GRN/ BLK	O/D OFF switch	0 - 2 V	O/D OFF switch pressed
3	GRN/ BLK	O/D OFF switch	10 - 14 V	O/D OFF switch released
4	BLK	Output shaft speed sensor (+)	2 - 3 V	Ignition switch ON, engine at stop
4	BLK	Output shaft speed sensor (+)	(Reference waveform No.1)	While engine running (Output signal is waveform. Waveform frequency varies depending on output shaft speed. (18 pulses are generated par 1 output shaft revolution.))
5	GRN	Input shaft speed sensor (+)	2 - 3 V	Ignition switch ON, engine at stop
5	GRN	Input shaft speed sensor (+)	(Reference waveform No.1)	While engine running (Output signal is waveform. Waveform frequency varies depending on input shaft speed. (12 pulses are generated par 1 input shaft revolution.))
6	PPL/WHT	Throttle opening signal (from ECM)	0 - 1.5 V 8 - 12 V (Reference waveform No.2)	Ignition switch ON (Signal from ECM is 128 Hz active low pulse. Duty ratio varies as throttle valve is opened gradually.) Throttle opening 0% = 0.78 ms ON duty Throttle opening 100% = 6.24 ms ON duty
7	GRY/BLK	Engine coolant temp, signal (from ECM)	0 - 1.5 V 10 - 14 V (Reference waveform No.3)	Ignition switch ON (Output signal is active low pulse. Pulse varies depending on engine coolant temperature.)
8	YEL/RED	Transmission range sensor ("D" range)	8 - 14 V	Ignition switch ON, selector lever at "R" range
8	YEL/RED	Transmission range sensor ("D" range)	0 - 1 V	Ignition switch ON, selector lever at other than "R" range
9	WHT/RED	Transmission range sensor ("N" range)	8 - 14 V	Ignition switch ON, selector lever at "R" range
9	WHT/RED	Transmission range sensor ("N" range)	0 - 1 V	Ignition switch ON, selector lever at other than "R" range
10	RED/YEL	Serial data line to speedometer	0 - 1.3 V 10 - 14 V (Reference waveform No.4)	Ignition switch ON
11	-	-	-	-
12	-	-	-	-
13	PNK/ BLU	Cruise control signal	10 - 14 V	Engine running at idling speed, vehicle at stop
14	BRN/YEL	Air conditioner compressor signal	0 - 1.5 V	Ignition switch ON, A/C compressor turned ON
14	BRN/YEL	Air conditioner compressor signal	10 - 14 V	Ignition switch ON, A/C compressor turned OFF
15	LT GRN/BLK	Engine speed signal from ECM	0 - 1 V	Ignition switch ON, engine at stop
15	LT GRN/BLK	Engine speed signal from ECM	0 - 1.5 V 10 - 14 V (Reference waveform No. 5)	While engine running (Signal from ECM is pulse. Pulse frequency varies depending on engine speed. (3000 RPM = 100 Hz))
16	WHT	Output shaft speed sensor (-)	2 - 3 V	Ignition switch ON, engine at stop
17	RED	Input shaft speed sensor (-)	2 - 3 V	Ignition switch ON, engine at stop
18	LT GRN/RED	Torque reduction signal	0 - 1.3 V 4 - 6 V (Reference waveform No.6)	Vehicle running at after warning up (Signal from TCM is 100 Hz active low duty pulse. Pulse generated time is shifting time when transmission gear is shifted by TCM.)
19	-	-	-	-
20	RED/ BLU	Transmission range sensor ("L" range)	8 - 14 V	Ignition switch ON, selector lever at "L" range
20	RED/ BLU	Transmission range sensor ("L" range)	0 - 1 V	Ignition switch ON, selector lever at other than "L" range
21	YEL	Transmission range sensor ("2" range)	8 - 14 V	Ignition switch ON, selector lever at "2" range
21	YEL	Transmission range sensor ("2" range)	0 - 1 V	Ignition switch ON, selector lever at other than "2" range
22	-	-	-	-
23	RED/ WHT	Engine torque signal from ECM	0 - 1.5 V 10 - 14 V (Reference waveform No.7)	Engine running (Output signal is active low pulse. Pulse varies depending on engine torque.)
24	-	-	-	-
25	-	-	-	-
26	-	-	-	-
27	GRN/YEL	Serial communication line from ECM	0 - 1.8 V 10 - 14 V (Reference waveform No.8)	Ignition switch ON (Output signal is active low pulse. Pulse is generated from ECM and TCM each other.)
28	GRY/RED	"D" range signal	9 - 14 V	Ignition switch ON, selector lever at "P" or "N" range
28	GRY/RED	"D" range signal	0 - 1 V	Ignition switch ON, selector lever at "R", "D", "2" or "L" range
1	-	-	-	-
2	-	-	-	-
3	GRN/ ORN	Shift solenoid valve-B (No. 2)	9 - 14 V	Ignition switch ON
4	GRY	Shift solenoid valve-A (No. 1)	0 - 1 V	Ignition switch ON
5	BLU/ORN	Transmission fluid temperature sensor (+)	2.7 - 2.9 V	Ignition switch ON, fluid temperature is 20°C (68°F)
5	BLU/ORN	Transmission fluid temperature sensor (+)	0.3 - 0.4 V	Ignition switch ON, fluid temperature is 100°C (212°F)
6	PPL/YEL	Diagnosis switch	8 - 14 V	Ignition switch ON
7	BLU	Data link connector	8 - 14 V	Ignition switch ON
8	GRY/BLK	Pressure control solenoid valve (-)	0.6 - 1.0V	Ignition switch ON
9	-	-	-	-
10	-	-	-	-
11	GRY/RED	Pressure control solenoid valve (+)	0 - 1.5 V 10 - 14 V (Reference waveform No.9)	Engine running at idling speed (Output signal is duty pulse. Duty ratio varies depending on throttle valve opening.)
12	BLU/WHT	TCC solenoid valve	0 - 1 V	Engine running at idling speed
13	WHT/ RED	Power source for back-up	10 - 14 V	Constantly
14	LTGRN	Transmission fluid temperature sensor (-)	0 - 1 V	Ignition switch ON
15	BLK	Ground	0 - 1 V	Ignition switch ON
16	GRN/ WHT	Brake light switch	8 - 14 V	Ignition switch ON, brake pedal depressed
16	GRN/ WHT	Brake light switch	0 - 1 V	Ignition switch ON, brake pedal released
17	-	-	-	-
18	-	-	-	-
19	BLK	Ground	0 - 1 V	Ignition switch ON
20	BLK/ WHT	Power source	10 - 14 V	Ignition switch ON

Reference waveform No. 1

Output shaft speed sensor signal (1) and input shaft speed sensor signal (2) at 64 km/h (40 mph)

WAVEFORM REFERENCE CHART

Measurement terminal	CH1: G07-4 to G08-19 CH2: G07-5 to G08-19
Oscilloscope	CH1: 5 V/DIV, CH2: 5 V/DIV TIME: 4 ms/DIV
Measurement condition	After warmed up to normal operating temperature (ECT approx. 95°C, 203°F) Drive vehicle at 64 km/h (40 mph) Gear position at 4th

Fig 2: Identifying Waveform No. 1

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Reference waveform No. 2

Throttle opening signal (from ECM)

WAVEFORM REFERENCE CHART

Measurement terminal	CH1: G07-6 to G08-19
Oscilloscope	CH1: 5 V/DIV TIME: 2 ms/DIV
Measurement condition	Ignition switch turned ON Accelerator pedal fully closed

Fig 3: Identifying Waveform No. 2

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Reference waveform No. 3

Engine coolant temp, signal (from ECM)

WAVEFORM REFERENCE CHART

Measurement terminal	CH1: G07-7 to G08-19
Oscilloscope	CH1: 5 V/DIV TIME: 2 s/DIV
Measurement condition	After warmed up to normal operating temperature (ECT approx. 95°C, 203°F)

Fig 4: Identifying Waveform No. 3

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Reference waveform No. 4

Serial data line to speedometer

WAVEFORM REFERENCE CHART

Measurement terminal	CH1: G07-10 to G08-19
Oscilloscope	CM: 2 V/DIV TIME: 20 ms/DIV
Measurement condition	Ignition switch turned ON Select lever shifted to "N" O/D OFF switch turned OFF

Fig 5: Identifying Waveform No. 4

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Reference waveform No. 5

Engine speed signal from ECM

WAVEFORM REFERENCE CHART

Measurement terminal	CH1: G07-15 to G08-19
Oscilloscope	CH1: 5 V/DIV TIME: 10 ms/DIV
Measurement condition	Engine speed at 3000 RPM

Fig 6: Identifying Waveform No. 5

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Reference waveform No. 6

Engine torque reduction signal

WAVEFORM REFERENCE CHART

Measurement terminal	CH1: G07-18 to G08-19
Oscilloscope	CH1: 2 V/DIV TIME: 20 ms/DIV
Measurement condition	After warmed up to normal operating temperature (ECT approx. 95°C, 203°F) Drive vehicle at over 64 km/h (40 mph) with O/D OFF switch ON and then OFF

Fig 7: Identifying Waveform No. 6

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Reference waveform No. 7

Engine torque signal from ECM

WAVEFORM REFERENCE CHART

Measurement terminal	CH1: G07-23 to G08-19
Oscilloscope	CH1: 5 V/DIV TIME: 10 ms/DIV
Measurement condition	After warmed up to normal operating temperature (ECT approx. 95°C, 203°F) Select lever shifted to "N" Engine speed at idle speed

Fig 8: Identifying Waveform No. 7

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Reference waveform No. 8

Serial communication line from ECM

WAVEFORM REFERENCE CHART

Measurement terminal	CH1: G07-27 to G08-19
Oscilloscope	CH1: 5 V/DIV TIME: 10 ms/DIV
Measurement condition	Ignition switch turned ON

Fig 9: Identifying Waveform No. 8

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Reference waveform No. 9

Pressure control solenoid valve output signal

WAVEFORM REFERENCE CHART

Measurement terminal	CH1: G08-11 to G08-19
Oscilloscope	CH1: 5 V/DIV TIME: 2 ms/DIV
Measurement condition	After warmed up to normal operating temperature (ECT approx. 95°C, 203°F) Select lever shifted to "D" Engine speed at idle speed

Fig 10: Identifying Waveform No. 9

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