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Terminals Of ECM

Fig 1: Identifying ECM Terminals
G04062550Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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 DESCRIPTION SPECIFIED CONDITION CHART

Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
L4 (E6-13) - E1 (E6-1) B-L - BR L4 shift position switch signal Ignition switch ON and transfer shift lever on L4 Below 1.5 V
L4 (E6-13) - E1 (E6-1) B-L - BR L4 shift position switch signal Ignition switch ON and transfer shift lever not on L4 9 to 14 V
TFN (E7-25) - E1 (E6-1) Y-G - BR N shift position switch signal Ignition switch ON and transfer shift lever on N Below 1.5 V
TFN (E7-25) - E1 (E6-1) Y-G - BR N shift position switch signal Ignition switch ON and transfer shift lever not on N 9 to 14 V
L (E9-9) - E1 (E6-1) R-L - BR L shift position switch signal Ignition switch ON and transfer shift lever on L 9 to 14 V
L (E9-9) - E1 (E6-1) R-L - BR L shift position switch signal Ignition switch ON and transfer shift lever not on L Below 1.5 V
2 (E9-10) - E1 (E6-1) G-B - BR 2 shift position switch signal Ignition switch ON and transfer shift lever on 2 and L 9 to 14 V
2 (E9-10) - E1 (E6-1) G-B - BR 2 shift position switch signal Ignition switch ON and transfer shift lever not on 2 and L Below 1.5 V
R (E9 -11) - E1 (E6-1) R-B - BR R shift position switch signal Ignition switch ON and transfer shift lever on R 9 to 14 V
R (E9 -11) - E1 (E6-1) R-B - BR R shift position switch signal Ignition switch ON and transfer shift lever not on R Below 1.5 V
D (E9-21) - E1 (E6-1) G-Y - BR D shift position switch signal Ignition switch ON and transfer shift lever on D or 4 9 to 14 V
D (E9-21) - E1 (E6-1) G-Y - BR D shift position switch signal Ignition switch ON and transfer shift lever not on D or 4 Below 1.5 V
3 (E9-19) - E1 (E6-1) G - BR 3 shift position switch signal Ignition switch ON and transfer shift lever on 3 9 to 14 V
3 (E9-19) - E1 (E6-1) G - BR 3 shift position switch signal Ignition switch ON and transfer shift lever not on 3 Below 1.5 V
4 (E9-20) - E1 (E6-1) G-R - BR 4 shift position switch signal Ignition switch ON and transfer shift lever on 4 9 to 14 V
4 (E9-20) - E1 (E6-1) G-R - BR 4 shift position switch signal Ignition switch ON and transfer shift lever not on 4 Below 1.5 V
STP (E10-15) - E1 (E6-1) G-W - BR Stop light switch signal Brake pedal is depressed 7.5 to 14 V
STP (E10-15) - E1 (E6-1) G-W - BR Stop light switch signal Brake pedal is released Below 1.5 V
SLU+ (E7-15) - SLU- (E7- 14) P-G -B SLU solenoid signal 4th (lock-up) gear or 5th (lock-up) gear Pulse generation (see waveform 1)
S2 (E7-10) - E1 (E6-1) W - BR S2 solenoid signal Ignition switch ON Below 1.5 V
S2 (E7-10) - E1 (E6-1) W - BR S2 solenoid signal 2nd or 3rd gear 9 to 14 V
S2 (E7-10) - E1 (E6-1) W - BR S2 solenoid signal 1st, 4th or 5th gear Below 1.5 V
S1 (E7-11) - E1 (E6-1) R - BR S1 solenoid signal Ignition switch ON 9 to 14 V
S1 (E7-11) - E1 (E6-1) R - BR S1 solenoid signal 1st or 2nd gear 9 to 14 V
S1 (E7-11) - E1 (E6-1) R - BR S1 solenoid signal 3rd, 4th or 5th gear Below 1.5 V
SLT+ (E7-13) - SLT- (E7- 12) G-W - G-B SLT solenoid signal Engine idle speed Pulse generation (see waveform 2)
SR (E7-9) - E1 (E6-1) G - BR SR solenoid signal Ignition switch ON Below 1.5 V
SR (E7-9) - E1 (E6-1) G - BR SR solenoid signal 5th gear 9 to 14 V
SR (E7-9) - E1 (E6-1) G - BR SR solenoid signal 1st gear Below 1 V
SL2+ (E7-17) - SL2- (E7- 16) P-B - P-L SL2 solenoid signal Engine idle speed Pulse generation (see waveform 3)
SL1+ (E7-19) - SL1- (E7 - 18) R-L - R-W SL1 solenoid signal Engine idle speed Pulse generation (see waveform 4)
THO1 (E7-24) - E2 (E8- 28) G-Y - BR No. 1 ATF temperature sensor signal No. 1 ATF temperature: 115°C (239°F) or more Below 1.5 V
THO2 (E7-32) - E2 (E8- 28) L - BR No. 2 ATF temperature sensor signal No. 2 ATF temperature: 115°C (239°F) or more Below 1.5 V
SP2+ (E7-34) - SP2- (E7- 26) R - G Speed sensor (SP2) signal Vehicle speed 20 km/h (12 mph) Pulse generation (see waveform 5)
NT+ (E7-35) - NT- (E7-27) L - W Speed sensor (NT) signal Engine idle speed (shift lever on P or N) Pulse generation (see waveform 6)
STAR NSW (E7-8) - E1 (E6-1) B-W - BR PNP switch signal Ignition switch ON and shift lever on P or N Below 1.5 V
STAR NSW (E7-8) - E1 (E6-1) B-W - BR PNP switch signal Ignition switch ON and shift lever not on P or N 9 to 14 V
STA (E6-11) - E1 (E6-1) B-R - BR PNP switch signal Ignition switch ON and shift lever not on P or N 6.0 V or more
SNWI (E9-27) - E1 (E6-1) L-R - BR 2nd start switch signal Ignition switch ON 9 to 14 V
SNWI (E9-27) - E1 (E6-1) L-R - BR 2nd start switch signal Ignition switch ON and press 2nd start switch continuously Below 1 V
PWR (E9-31) - E1 (E6-1) L-W - BR PWR switch signal Ignition switch ON and pattern select switch "PWR" OFF 9 to 14 V
PWR (E9-31) - E1 (E6-1) L-W - BR PWR switch signal Ignition switch ON and pattern select switch "PWR" ON Below 1 V
  1. Waveform 1 (Reference) 
    Fig 2: Waveform 1 Reference Graph
    G04062551Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    WAVEFORM REFERENCE CHART

    Item Content
    Symbols (Terminal No.) SLU+ (E7-15) - SLU- (E7-14)
    Tool Setting 5 V/DIV., 1 msec./DIV.
    Condition 4th (lock-up) or 5th (lock-up) gear
  2. Waveform 2 (Reference) 
    Fig 3: Waveform 2 Reference Graph
    G04062552Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    WAVEFORM REFERENCE CHART

    Item Content
    Symbols (Terminal No.) SLT+ (E7-13) - SLT- (E7-12)
    Tool Setting 5 V/DIV., 1 msec./DIV.
    Condition Engine idle speed
  3. Waveform 3 (Reference) 
    Fig 4: Waveform 3 Reference Graph
    G04062553Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    WAVEFORM REFERENCE CHART

    Item Content
    Symbols (Terminal No.) SL2+ (E7-17) - SL2- (E7-16)
    Tool Setting 5 V/DIV., 1 msec./DIV.
    Condition Engine idle speed
  4. Waveform 4 (Reference) 
    Fig 5: Waveform 4 Reference Graph
    G04062554Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    WAVEFORM REFERENCE CHART

    Item Content
    Symbols (Terminal No.) SL1+ (E7-19) - SL1- (E7-18)
    Tool Setting 5 V/DIV., 1 msec./DIV.
    Condition Engine idle speed
  5. Waveform 5 (Reference) 
    Fig 6: Waveform 5 Reference Graph
    G04062555Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    WAVEFORM REFERENCE CHART

    Item Content
    Symbols (Terminal No.) SP2+ (E7-34) - SP2- (E7-26)
    Tool Setting 2 V/DIV., 2 msec./DIV.
    Condition Vehicle speed 20 km/h (12 mph)
  6. Waveform 6 (Reference) 
    Fig 7: Waveform 6 Reference Graph
    G04062556Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    WAVEFORM REFERENCE CHART

    Item Content
    Symbols (Terminal No.) NT+ (E7-35) - NT- (E7-27)
    Tool Setting 1 V/DIV., 2 msec./DIV.
    Condition Engine idle speed (shift lever on P or N)
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