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Terminals Of Ecu

  1. TRANSMISSION CONTROL ECU ASSY 

HINT:

Inspect the connectors from the back side while the connector is connected.

Fig 1: Identifying ECU Connector Terminals
G02918291Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
ECU TERMINALS CONDITION

Terminal No. (Symbols) Wiring color Terminal description Condition Specified value
T4-1 - T4-15 (+B - E1) L - W-B Power source Power switch on (IG) 9 to 14 V
T4-2 (E02) - Body ground W-B - Body ground Ground Always Below 1 V
T4-3 (E01) - Body ground W-B - Body ground Ground Always Below 1 V
T4-4 -T4-16 (RZ1 - E2) L - P Rotation angle sensor signal Power switch on (IG) 4 to 5.5 V
T4-5 - T4-16 (RB - E2) GR - P Rotation angle sensor signal Power switch on (IG) 4 to 5.5 V
T4-6 - T4-16 (RA - E2) LG - P Rotation angle sensor signal Power switch on (IG) 4 to 5.5 V
T4-7 -T4-15 (PCON - E1) LG - W-B Communication Bus Power switch on (IG) Pulse generation(see waveform 1)
T4-8 - T4-15 (PPOS - E1) W - W-B Communication Bus Power switch on (IG) Pulse generation (see wave form 2)
T4-9 - T4-15 (IND - E1) R - W-B P position switch indicator light P position switch on Below 1 V
T4-10 - T4-15 (MWA - E1) W - W-B Parking lock motor Power switch on (IG) 9 to 14 V
T4-11 - T4-15 (MVA - E1) R - W-B Parking lock motor Power switch on (IG) 9 to 14 V
T4-12 - T4-15 (MUA - E1) B - W-B Parking lock motor Power switch on (IG) 9 to 14 V
T4-13 - T4-15 (BATT - E1) L - W-B Power source (RAM) Always 9 to 14 V
T4-14 - T4-15 (BMA - E1) B - W-B P CON relay Power switch on (IG) 9 to 14 V
T4-15 (E1) - Body ground W-B - Body ground Ground Always Below 1 V
T4-16 (E2) - Body ground P - Body ground Ground Always Below 1 V
T4-17 - T4-16 (VC - E2) O - P Power source(Rotation angle sensor) Power switch on (IG) 4.5 to 5.5 V
T4-18 - T4-15 (MPX2 - E1) B - W-B Multiplex communication Power switch off Power switch on (IG) Below 1 V Pulse generation
T4-19 - T4-15 (MPX1 - E1) GR - W-B Multiplex communication Power switch off Power switch on (IG) Below 1 V Pulse generation
T4-20 -T4-15 (SIL - E1) W - W-B Diagnosis tester communication Power switch on (IG) 8 V or higher
Fig 2: Wave Form 1 Graph (GND)
G02918292Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Wave form 1
    WAVE FORM 1

    Item Content
    Measure terminal PCON - E1
    Measure set 5V/DIV, 20 ms/DIV
    Condition Power switch on (IG)
    Fig 3: Wave Form 2 Graph (GND)
    G02918293Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Wave form 2
WAVE FORM 2

Item Content
Measure terminal PPOS - E1
Measure set 5V/DIV, 20 ms/DIV
Condition Power switch on (IG)
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