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Terminals Of Ecu

Fig 1: Identifying ECU Connectors Terminals
G02938727Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
ECU CONNECTOR TERMINALS SPECIFICATION

Terminal No. Wiring color Condition STD voltage
C7-1 <=> Body ground SB <=> Body ground Constant Below 1 V
C7-2 (*4) <=> Body ground W <=> Body ground Daytime running light is OFF --> ON Below 1 V <=> 10 - 14 V
C7-2 (*5) <=> Body ground W <=> Body ground Headlight switch OFF --> ON Below 1 V --> 10 - 14 V
C7-3 <=> C7-1 W <=> SB Ignition switch ON and oil level warning light ON --> OFF Below 1 V --> 10 - 14 V
C7-5 <=> C7-1 W <=> SB Ignition switch ON and driver side seat belt unfastened --> fastened Below 1 V --> 10 - 14 V
C7-6 <=> C7-1 W <=> SB Ignition switch ON and ABS indicator light OFF --> ON Below 1 V --> 10 - 14 V
C7-8 <=> C7-22 W <=> W Ignition switch ON and fuel is EMPTY --> FULL Below 1 V --> 4 - 5 V
C7-10 <=> C7-1 SB <=> SB Ignition switch ON and front fog light indicator light OFF --> ON Below 1 V --> 10 - 14 V
C7-11 <=> C7-1 W <=> SB Ignition switch ON Below 1 V --> 10 - 14 V
C7-12 <=> C7-1 W <=> SB Ignition switch ON and SRS warning light OFF --> ON Below 1 V --> 10 - 14 V
C7-13 <=> C7-1 SB <=> SB Turn R indicator light OFF --> flash Below 1 V --> 10 - 14 V
C7-15 <=> C7-1 W <=> SB Ignition switch ON and A/T 4 indicator light OFF --> ON Below 1 V --> 10 - 14 V
C7-16 <=> C7-1 W <=> SB Ignition switch ON and A/T L indicator light OFF --> ON Below 1 V --> 10 - 14 V
C7-18 <=> C7-1 W <=> SB Ignition switch OFF --> ACC Below 1 V --> 10 - 14 V
C7-19 <=> C7-1 W <=> SB Tail light switch OFF --> ON Below 1 V --> 10 - 14 V
C7-20 <=> Body ground W <=> Body ground Constant 10 - 14 V
C7-21 <=> Body ground W <=> Body ground Constant Below 1 V
C7-23 --> C7-1 W <=> SB Ignition switch ON and CHARGE indicator light ON --> OFF Below 4 V --> 10 - 14 V
C7-24 (*3,*6) <=> C7-1 W (*3), R-L (*6) <=> SB Ignition switch ON and brake fluid abnormal level --> normal level Below 1 V --> 10 - 14 V
C7-25 <=> C7-1 W <=> SB Ignition switch ON and CRUISE indicator light ON --> OFF Below 4 V --> 10 - 14 V
C7-26 <=> C7-1 W <=> SB Ignition switch ON and oil pressure indicator light ON --> OFF Below 1 V --> 10 - 14 V
C7-28 <=> C7-1 W <=> SB Ignition switch ON 4 - 6 V
C7-30 <=> C7-1 SB <=> SB Turn L indicator light OFF --> flash Below 1 V --> 10 - 14 V
C7-31 <=> C7-1 W <=> SB Engine running Below 1 V <=> 10 - 14 V
C7-32 <=> C7-1 W <=> SB Ignition switch ON and turn front wheel slowly Pulse generation (*1)
C7-33 <=> C7-1 W <=> SB Ignition switch ON and turn front wheel slowly Below 1 V <=> 10 - 14 V
C7-34 <=> C7-1 W <=> SB Ignition switch ON and A/T R indicator light OFF --> ON Below 1 V --> 10 - 14 V
C7-35 <=> C7-1 W <=> SB Ignition switch ON and A/T 3 indicator light OFF --> ON Below 1 V --> 10 - 14 V
C7-36 <=> C7-1 W <=> SB Ignition switch ON and A/T N indicator light OFF --> ON Below 1 V --> 10 - 14 V
C7-37 <=> C7-1 W <=> SB Ignition switch ON and A/T P indicator light OFF --> ON Below 1 V --> 10 - 14 V
C7-38 <=> C7-1 W <=> SB Ignition switch ON --> START Below 1 V --> 10 - 14 V
C7-39 <=> C7-1 W <=> SB Ignition switch ON --> ON Below 1 V --> 10 - 14 V
C7-40 <=> C7-1 W <=> SB Ignition switch ON --> ON Below 1 V --> 10 - 14 V
C8-1 <=> C7-1 G <=> SB Constant Below 1 V
C8-2 <=> C7-1 G-R <=> SB Ignition switch ON and check E/G warning light ON --> OFF Below 4V --> 10 - 14 V
C8-3 <=> C7-1 W-G <=> SB Tail cancel switch OFF --> ON Below 1 V --> 4 - 6 V
C8-4 <=> C7-1 R-B <=> SB Driver side door open --> close Below 4 V --> 10 - 14 V
C8-5 <=> C7-1 P-L <=> SB Washer level indicator light ON --> OFF Below 1 V --> 10 - 14 V
C8-7 (*4) <=> C7-1 P <=> SB Constant Below 1 V
C8-8 <=> C7-1 LG <=> SB Headlight leveling warning light ON --> OFF Below 1 V --> 10 - 14 V
C8-9 <=> C7-1 R <=> SB HEAD LAMP indicator light OFF --> ON Below 1 V --> 10 - 14 V
C8-10 (*3) <=> C7-1 L-W <=> SB Ignition switch ON and A/T P or N indicator light OFF --> ON Below 1 V --> 10 - 14 V
C8-11 <=> C7-1 R-L <=> SB BEAM indicator light OFF --> ON Below 1 V --> 10 - 14 V
C8-12 <=> C7-1 B-R <=> SB Ignition switch OFF --> ON Below 1 V --> 10 - 14 V
C8-13 (*6) <=> C7-1 R-L <=> SB VSC warning light ON --> OFF Below 4 V --> 10 - 14 V
C8-14 (*6) <=> C7-1 L <=> SB TRAC OFF indicator light ON --> OFF Below 4 V --> 10 - 14 V
C8-15 <=> C7-1 LG <=> SB Ignition switch OFF and buzzer sound --> no sound Below 1 V --> 10 - 14 V
C8-16 <=> C7-1 GR <=> SB Ignition switch ON and lamp failure indicator light ON --> OFF Below 1 V --> 10 - 14 V
C8-17 <=> C7-1 R-W (*6), R-Y (*3) <=> SB Ignition switch ON and parking brake switch ON --> OFF Below 1 V --> 10 - 14 V
C8-18 <=> C7-1 R <=> SB Ignition switch ON and RESET switch --> ON 2 - 3 V --> 4 - 6 V
Ignition switch ON and MODE switch --> ON 2 - 3 V --> 4 - 6 V
C8-19 <=> C7-1 GR-B <=> SB Ignition switch ACC or ON, tail switch ON and light control rheostat is tail cancel position --> brightest position Below 1 V --> 3.5 - 4.5 V
C8-20 (*6) <=> C7-1 LG <=> SB Ignition switch ON and SLIP indicator light ON --> OFF Below 4 V --> 10 - 14 V
C8-21 <=> C7-1 L <=> SB Engine running Below 1 V <=> 10 - 14 V (*2)
C8-22 <=> C7-1 LG-B <=> SB Ignition switch ON and A/T D indicator light OFF --> ON Below 1 V --> 10 - 14 V
C8-23 <=> C7-1 B-R <=> SB Ignition switch ON and A/T 2 indicator light OFF --> ON Below 1 V --> 10 - 14 V
C8-24 <=> C7-1 W-G <=> SB Tail light switch OFF --> ON Below 1 V <=> 10 - 14 V

(*1): Reference: Using oscilloscope:

ITEM CONTENTS

Item Contents
Tool setting 5 V/DIV, 20 ms/DIV
Vehicle condition Driving at approx. 20Km/h
Fig 2: Oscilloscope Pulse Graph
G02938728Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

(*2): Reference: Using oscilloscope:

ITEM - CONTENTS

Item Contents
Tool setting 5 V/DIV, 10 ms/DIV
Vehicle condition Engine idle speed

*3: w/o VSC

*4: w/ DRL

*5: w/o DRL

*6: w/ VSC

Fig 3: Oscilloscope Pulse Graph
G02938729Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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