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Terminals Of Ecu

HINT:

Inspect the connectors from the back side while the connectors are connected.

Fig 1: Identifying Terminals Of ECU (E60)
G04977830Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
ECU CONNECTOR TERMINALS VOLTAGE SPECIFIED CONDITION

Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
IG (E60-7) - GND (E60-9) B - W-B IG power source Ignition switch on (IG) 11 to 14 V
SPD (E60-2) - GND (E60-9) V - W-B Vehicle speed signal Ignition switch on (IG) Pulse generation (see  1waveform 1)
TC (E60-3) - GND (E60-9) P - W-B Terminal of DLC3 Ignition switch on (IG) 11 to 14 V
TACH (E60-4) - GND (E60-9) B - W-B Engine revolution signal Idling Pulse generation (see  2waveform 2)
SIL (E60-10) - GND (E60-9) GR - W-B Diagnostic communication terminal
  • Ignition switch on (IG)
  • Techstream is connected to DLC3
 Pulse generation (see  3waveform 3)
IND (E60-5) - GND (E60-9) L - W-B Tire pressure warning light signal Ignition switch on (IG) 11 to 14 V
RF5V (E60-6) - GND (E60-9) LG - W-B Tire pressure warning antenna and receiver power source Ignition switch on (IG) 4.5 to 5.5 V
CLSW (E60-1) - GND (E60-9) O - W-B Tire pressure warning reset switch
  • Ignition switch on (IG)
  • Tire pressure warning reset switch on
 11 to 14V
RDA (E60-12) - GND (E60-9) G - W-B Tire pressure warning antenna and receiver signal
  • Ignition switch on (IG)
  • The Tire pressure warning antenna and receiver is not connected
 11 to 14 V
GND2 (E60-11) - GND (E60-9) BR - W-B Tire pressure warning antenna and receiver ground Always Below 1 Ω
  1. Waveform 1 (Reference) 
    1. Waveform
      WAVEFORM 1 REFERENCE

      Item Contents
      Terminal SPD-GND
      Tool setting 5V/DIV, 200ms/DIV.
      Vehicle condition While driving at approximately 12 mph (20km/h).
      Fig 2: Identifying Waveform 1
      G04966584Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Waveform 2 (Reference) 
    1. Waveform
      WAVEFORM 2 REFERENCE

      Item Contents
      Terminal TACH - Body ground
      Tool setting 5 V/DIV., 10ms./DIV.
      Vehicle condition Idling

      HINT:

      The wavelength becomes shorter as the engine rpm increases.

      Fig 3: Identifying Waveform 2
      G04973001Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. Waveform 3 (Reference) 
    1. Waveform
      WAVEFORM 3 REFERENCE

      Item Contents
      Terminal SIL - Body ground
      Tool setting 5 V/DIV., 1 ms/DIV.
      Vehicle condition Communicating using Techstream
      Fig 4: Identifying Waveform 3
      G04977832Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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