Automatic Transaxle System Terminals Of Ecm

Transmission. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
U241E Automatic Transaxle. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. CHECK ECM

Automatic Transaxle System -- Terminals Of Ecm



CHECK ECM

Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U241E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle System Terminals Of Ecm

  1. 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 "Specified Condition".
    Use the illustration above as a reference for the ECM terminals.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    STAR (B32-52) - E1 (B32-104)
    		W - BR
    		Park/Neutral position switch signal
    		Ignition switch on (IG) and shift lever on P or N
    		Below 2 V
    STAR (B32-52) - E1 (B32-104)
    		W - BR
    		Park/Neutral position switch signal
    		Ignition switch on (IG) and shift lever not on P or N
    		10 to 14 V
    P (B32-73) - E1 (B32-104)
    		L - BR
    		P shift position switch signal
    		Ignition switch on (IG) and shift lever on P
    		10 to 14 V
    P (B32-73) - E1 (B32-104)
    		L - BR
    		P shift position switch signal
    		Ignition switch on (IG) and shift lever not on P
    		Below 1 V
    R (B32-53) - E1 (B32-104)
    		R - BR
    		R shift position switch signal
    		Ignition switch on (IG) and shift lever on R
    		10 to 14 V
    R (B32-53) - E1 (B32-104)
    		R - BR
    		R shift position switch signal
    		Ignition switch on (IG) and shift lever not on R
    		Below 1 V
    N (B32-54) - E1 (B32-104)
    		Y - BR
    		N shift position switch signal
    		Ignition switch on (IG) and shift lever on N
    		10 to 14 V
    N (B32-54) - E1 (B32-104)
    		Y - BR
    		N shift position switch signal
    		Ignition switch on (IG) and shift lever not on N
    		Below 1 V
    D (B32-56) - E1 (B32-104)
    		B - BR
    		D shift position switch signal
    		Ignition switch on (IG) and shift lever on D or 3
    		10 to 14 V
    D (B32-56) - E1 (B32-104)
    		B - BR
    		D shift position switch signal
    		Ignition switch on (IG) and shift lever not on D or 3
    		Below 1 V
    3 (A12-26) - E1 (B32-104)
    		P - BR
    		3 shift position switch signal
    		Ignition switch on (IG) and shift lever on 3
    		10 to 14 V
    3 (A12-26) - E1 (B32-104)
    		P - BR
    		3 shift position switch signal
    		Ignition switch on (IG) and shift lever not on 3
    		Below 1 V
    2 (B32-55) - E1 (B32-104)
    		P - BR
    		2 shift position switch signal
    		Ignition switch on (IG) and shift lever on 2 and L
    		10 to 14 V
    2 (B32-55) - E1 (B32-104)
    		P - BR
    		2 shift position switch signal
    		Ignition switch on (IG) and shift lever not on 2 and L
    		Below 1 V
    L (B32-74) - E1 (B32-104)
    		LG - BR
    		L shift position switch signal
    		Ignition switch on (IG) and shift lever on L
    		10 to 14 V
    L (B32-74) - E1 (B32-104)
    		LG - BR
    		L shift position switch signal
    		Ignition switch on (IG) and shift lever not on L
    		Below 1 V
    STP (A12-36) - E1 (B32-104)
    		L - BR
    		Stop light switch signal
    		Brake pedal is depressed
    		10 to 14 V
    STP (A12-36) - E1 (B32-104)
    		L - BR
    		Stop light switch signal
    		Brake pedal is released
    		Below 1 V
    SL1+ (B32-57) - SL1- (B32-77)
    		V - P
    		SL1 solenoid signal
    		Engine idle speed
    		Pulse generation
    (see waveform 1)
    SL2+ (B32-58) - SL2- (B32-59)
    		Y - L
    		SL2 solenoid signal
    		Engine idle speed
    		Pulse generation
    (see waveform 2)
    DSL (B32-79) - E01 (B32-45)
    		G - W-B
    		DSL solenoid signal
    		Vehicle speed 65 km/h (40 mph), lock-up (ON to OFF)
    		Below 1 V
    DSL (B32-79) - E01 (B32-45)
    		G - W-B
    		DSL solenoid signal
    		Vehicle driving under lock-up position
    		Pulse generation
    (see waveform 3)
    SLT+ (B32-76) - SLT- (B32-75)
    		R - GR
    		SLT solenoid signal
    		Engine idle speed
    		Pulse generation
    (see waveform 4)
    S4 (B32-78) - E01 (B32-45)
    		W - W-B
    		S4 solenoid signal
    		Ignition switch on (IG)
    		Below 1 V
    S4 (B32-78) - E01 (B32-45)
    		W - W-B
    		S4 solenoid signal
    		O/D gear
    		10 to 14 V
    S4 (B32-78) - E01 (B32-45)
    		W - W-B
    		S4 solenoid signal
    		Not on O/D gear
    		Below 1 V
    THO1 (B32-72) - ETHO (B32-95)
    		LG - BR
    		ATF temperature sensor signal
    		ATF temperature: 115°C (239°F) or more
    		Below 1.5 V
    NT+ (B32-125) - NT- (B32-124)
    		W - R
    		Speed sensor (NT) signal
    		Vehicle speed 20 km/h (12 mph)
    		Pulse generation
    (see waveform 5)
    NC+ (B32-101) - NC- (B32-102)
    		R - W
    		Speed sensor (NC) signal
    		Vehicle speed 30 km/h (19 mph): (3rd gear)
    Engine speed 1,400 rpm
    		Pulse generation
    (see waveform 6)


    2. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U241E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle System Terminals Of Ecm

  2. Using an oscilloscope, check the waveform 1.

    Waveform 1 (Reference):
    Item
    		Content
    Symbols (Terminal No.)
    		SL1+ (B32-57) - SL1- (B32-77)
    Tool Setting
    		5 V/DIV., 1 msec./DIV.
    Condition
    		Engine idle speed


    3. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U241E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle System Terminals Of Ecm

  3. Using an oscilloscope, check the waveform 2.

    Waveform 2 (Reference):
    Item
    		Content
    Symbols (Terminal No.)
    		SL2+ (B32-58) - SL2- (B32-59)
    Tool Setting
    		5 V/DIV., 1 msec./DIV.
    Condition
    		Engine idle speed


    4. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U241E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle System Terminals Of Ecm

  4. Using an oscilloscope, check the waveform 3.

    Waveform 3 (Reference):
    Item
    		Content
    Symbols (Terminal No.)
    		DSL (B32-79) - E01 (B32-45)
    Tool Setting
    		10 V/DIV., 100 msec./DIV.
    Condition
    		Vehicle speed 65 km/h (40 mph), lock-up (ON to OFF)


    5. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U241E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle System Terminals Of Ecm

  5. Using an oscilloscope, check the waveform 4.

    Waveform 4 (Reference):
    Item
    		Content
    Symbols (Terminal No.)
    		SLT+ (B32-76) - SLT- (B32-75)
    Tool Setting
    		5 V/DIV., 1 msec./DIV.
    Condition
    		Engine idle speed


    6. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U241E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle System Terminals Of Ecm

  6. Using an oscilloscope, check the waveform 5.

    Waveform 5 (Reference):
    Item
    		Content
    Symbols (Terminal No.)
    		NT+ (B32-125) - NT- (B32-124)
    Tool Setting
    		5 V/DIV., 0.5 msec./DIV.
    Condition
    		Vehicle speed 20 km/h (12 mph)


    7. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.U241E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle System Terminals Of Ecm

  7. Using an oscilloscope, check the waveform 6.

    Waveform 6 (Reference):
    Item
    		Content
    Symbols (Terminal No.)
    		NC+ (B32-101) - NC- (B32-102)
    Tool Setting
    		1 V/DIV., 1 msec./DIV.
    Condition
    		Vehicle speed 30 km/h (19 mph): (3rd gear)
    Engine speed 1,400 rpm