Toyota Fortuner. Automatic Transmission System Terminals Of Ecm

CHECK ECM

Automatic Transmission System -- Terminals Of Ecm

CHECK ECM

Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A750F Automatic Transmission.Automatic Transmission System.Automatic Transmission System Terminals Of Ecm

Measure the voltage of the ECM connector.

HINT:

Each ECM terminal's standard voltage is shown in the table below.

In the table, first follow the information under "Condition". Look under "Symbols (Terminal No.)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specific Condition".

Use the illustration above as a reference for the ECM terminals.

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
NSW (E16-8) - E1 (E17-1)	L-Y - BR	Park/Neutral position switch signal	Ignition switch ON and shift lever on P or N	Below 2 V
NSW (E16-8) - E1 (E17-1)	L-Y - BR	Park/Neutral position switch signal	Ignition switch ON and shift lever not on P or N	10 to 14 V
STA (E17-11) - E1 (E17-1)	B-Y - BR	Starter signal	Cranking	6 V or more
L (E13-9) - E1 (E17-1)	GR-L - BR	L shift position switch signal	Ignition switch ON and transfer shift lever on L	10 to 14 V
L (E13-9) - E1 (E17-1)	GR-L - BR	L shift position switch signal	Ignition switch ON and transfer shift lever not on L	Below 1 V
4 (E13-20) - E1 (E17-1)	G-O - BR	4 shift position switch signal	Ignition switch ON and transfer shift lever on 4	10 to 14 V
4 (E13-20) - E1 (E17-1)	G-O - BR	4 shift position switch signal	Ignition switch ON and transfer shift lever not on 4	Below 1 V
3 (E13-19) - E1 (E17-1)	L - BR	3 shift position switch signal	Ignition switch ON and transfer shift lever on 3	10 to 14 V
3 (E13-19) - E1 (E17-1)	L - BR	3 shift position switch signal	Ignition switch ON and transfer shift lever not on 3	Below 1 V
2 (E13-10) - E1 (E17-1)	G-R - BR	2 shift position switch signal	Ignition switch ON and transfer shift lever on 2 and L	10 to 14 V
2 (E13-10) - E1 (E17-1)	G-R - BR	2 shift position switch signal	Ignition switch ON and transfer shift lever not on 2 and L	Below 1 V
D (E13-21) - E1 (E17-1)	G-Y - BR	D shift position switch signal	Ignition switch ON and transfer shift lever on D or 4	10 to 14 V
D (E13-21) - E1 (E17-1)	G-Y - BR	D shift position switch signal	Ignition switch ON and transfer shift lever not on D or 4	Below 1 V
R (E13 -11) - E1 (E17-1)	R-Y - BR	R shift position switch signal	Ignition switch ON and transfer shift lever on R	10 to 14 V
R (E13 -11) - E1 (E17-1)	R-Y - BR	R shift position switch signal	Ignition switch ON and transfer shift lever not on R	Below 1 V
STP (E14-15) - E1 (E17-1)	G-W - BR	Stop light switch signal	Brake pedal is depressed	7.5 to 14 V
STP (E14-15) - E1 (E17-1)	G-W - BR	Stop light switch signal	Brake pedal is released	Below 1.5 V
S1 (E16-11) - E1 (E17-1)	GR - BR	S1 solenoid signal	1st or 2nd gear	10 to 14 V
S1 (E16-11) - E1 (E17-1)	GR - BR	S1 solenoid signal	3rd, 4th or 5th gear	Below 1 V
S2 (E16-10) - E1 (E17-1)	W-L - BR	S2 solenoid signal	2nd or 3rd gear	10 to 14 V
S2 (E16-10) - E1 (E17-1)	W-L - BR	S2 solenoid signal	1st, 4th or 5th gear	Below 1 V
SR (E16-9) - E1 (E17-1)	G - BR	SR solenoid signal	5th gear	10 to 14 V
SR (E16-9) - E1 (E17-1)	G - BR	SR solenoid signal	1st gear	Below 1 V
SL1+ (E16-19) - SL1- (E16-18)	G-W - P-L	SL1 solenoid signal	Engine idle speed	Pulse generation (see waveform 1)
SL2+ (E16-17) - SL2- (E16-16)	G-B - G-R	SL2 solenoid signal	Engine idle speed	Pulse generation (see waveform 2)
SLT+ (E16-13) - SLT- (E16-12)	G-Y - L-B	SLT solenoid signal	Engine idle speed	Pulse generation (see waveform 3)
SLU+ (E16-15) - SLU- (E16-14)	L - W	SLU solenoid signal	4th (lock-up) or 5th (lock-up) gear	Pulse generation (see waveform 4)
THO1 (E16-24) - E2 (E15-28)	W-R - BR	No. 1 ATF temperature sensor signal	No. 1 ATF temperature: 115°C (239°F) or more	Below 1.5 V
THO2 (E16-32) - E2 (E15-28)	B-Y - BR	No. 2 ATF temperature sensor signal	No. 2 ATF temperature: 115°C (239°F) or more	Below 1.5 V
NT+ (E16-35) - NT- (E16-27)	L - Y	Speed sensor (NT) signal	Engine idle speed (shift lever on P or N)	Pulse generation (see waveform 5)
SP2+ (E16-34) - SP2- (E16-26)	V - P	Speed sensor (SP2) signal	Vehicle speed 20 km/h (12 mph)	Pulse generation (see waveform 6)
L4 (E17-13) - E1 (E17-1)	G-W - BR	L4 shift position switch signal	Ignition switch ON and transfer shift lever on L4	Below 1 V
L4 (E17-13) - E1 (E17-1)	G-W - BR	L4 shift position switch signal	Ignition switch ON and transfer shift lever not on L4	10 to 14 V
TFN (E16-25) - E1 (E17-1)	W-G - BR	N shift position switch signal	Ignition switch ON and transfer shift lever on N	Below 1 V
TFN (E16-25) - E1 (E17-1)	W-G - BR	N shift position switch signal	Ignition switch ON and transfer shift lever not on N	10 to 14 V

Using an oscilloscope, check the waveform 1.
Waveform 1 (Reference):
Item
Content
Symbols (Terminal No.)
SL1+ (E16-19) - SL1- (E16-18)
Tool Setting
5 V/DIV., 1 msec./DIV.
Condition
Engine idle speed

Using an oscilloscope, check the waveform 2.
Waveform 2 (Reference):
Item
Content
Symbols (Terminal No.)
SL2+ (E16-17) - SL2- (E16-16)
Tool Setting
5 V/DIV., 1 msec./DIV.
Condition
Engine idle speed

Using an oscilloscope, check the waveform 3.
Waveform 3 (Reference):
Item
Content
Symbols (Terminal No.)
SLT+ (E16-13) - SLT- (E16-12)
Tool Setting
5 V/DIV., 1 msec./DIV.
Condition
Engine idle speed

Using an oscilloscope, check the waveform 4.
Waveform 4 (Reference):
Item
Content
Symbols (Terminal No.)
SLU+ (E16-15) - SLU- (E16-14)
Tool Setting
5 V/DIV., 1 msec./DIV.
Condition
4th (lock-up) or 5th (lock-up) gear

Using an oscilloscope, check the waveform 5.
Waveform 5 (Reference):
Item
Content
Symbols (Terminal No.)
NT+ (E16-35) - NT- (E16-27)
Tool Setting
1 V/DIV., 2 msec./DIV.
Condition
Engine idle speed (shift lever on P or N)

Using an oscilloscope, check the waveform 6.
Waveform 6 (Reference):
Item
Content
Symbols (Terminal No.)
SP2+ (E16-34) - SP2- (E16-26)
Tool Setting
2 V/DIV., 2 msec./DIV.
Condition
Vehicle speed 20 km/h (12 mph)

Item	Content
Symbols (Terminal No.)	SL1+ (E16-19) - SL1- (E16-18)
Tool Setting	5 V/DIV., 1 msec./DIV.
Condition	Engine idle speed