GSIC - Global Service Information Center

# ELECTRONIC CONTROLLED AUTOMATIC TRANSMISSION SYSTEM > TERMINALS OF ECM

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ECM

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 (Terminals No.) | Wiring Color | Terminal Description | Condition | Specified Condition
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
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
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
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
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
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
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
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
SLU+ (E16-15) - SLU- (E16-14) | L - W | SLU solenoid signal | 5th (lock-up) gear | Pulse generation (see waveform 1)
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
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
SLT+ (E16-13) - SLT- (E16-12) | G-Y - L-B | SLT solenoid signal | Engine idle speed | Pulse generation (see waveform 2)
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
SL2+ (E16-17) - SL2- (E16-16) | G-B - G-R | SL2 solenoid signal | Engine idle speed | Pulse generation (see waveform 3)
SL1+ (E16-19) - SL1- (E16 - 18) | G-W - P-L | SL1 solenoid signal | Engine idle speed | 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
SP2+ (E16-34) - SP2- (E16-26) | V - P | Speed sensor (SP2) signal | Vehicle speed 20 km/h (12 mph) | Pulse generation (see waveform 5)
NT+ (E16-35) - NT- (E16-27) | L - Y | Speed sensor (NT) signal | Engine idle speed | Pulse generation (see waveform 6)
NSW (E16-8) - E1 (E17-1) | L-Y - BR | PNP switch signal | Ignition switch ON and shift lever on P or N | Below 2 V
NSW (E16-8) - E1 (E17-1) | L-Y - BR | PNP switch signal | Ignition switch ON and shift lever not on P or N | 10 to 14 V

Waveform 1 (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

Waveform 2 (Reference)

Item | Content
Symbols (Terminal No.) | SLT+ (E16-13) - SLT- (E16-12)
Tool Setting | 5 V/DIV., 1 msec./DIV.
Condition | Engine idle speed

Waveform 3 (Reference)

Item | Content
Symbols (Terminal No.) | SL2+ (E16-17) - SL2- (E16-16)
Tool Setting | 5 V/DIV., 1 msec./DIV.
Condition | Engine idle speed

Waveform 4 (Reference)

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

Waveform 5 (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)

Waveform 6 (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)