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Terminals Of Ecu

Fig 1: Identifying Driver Seat ECU Connectors & Terminals
G03149940Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DRIVER SEAT ECU CONNECTOR TERMINALS IDENTIFICATION

Terminal No. (Symbols) Wiring color Condition STD voltage (V)
D27-1 - D27-6 (SLD- - GND) R-B - W-B Seat moved rearward using slide switch 10 - 14 V
Others Below 1 V
D27-2 - D27-6 (FRV- - GND) L - W-B Seat lowered using front vertical switch 10 - 14 V
Others Below 1 V
D27-3 - D27-6 (H- - GND) R-L - W-B Headrest moved downward using headrest switch 10 - 14 V
Others Below 1 V
D27-4 - D27-6 (RRV- - GND) W-W-B Seat lowered using lifter switch 10 - 14 V
others Below 1
D27-5 - D27-6 (FRV+ - GND) R - W-B Seat raised using front vertical switch 10 - 14 V
Others Below 1 V
D27-6 - Body ground (GND - Body ground) W-B - Body ground Constant Below 1 V
D27-7 - D27-6 (C+ - GND) B-W - W-B Seat cushion moved upward using headrest switch 10 - 14 V
Others Below 1 V
D27-8 - D27-6 (SLD+ - GND) B - W-B Seat moved forward using slide switch 10 - 14 V
Others Below 1 V
D27-9 - D27-6 (RRV+ - GND) B-R - W-B Seat raised using lifter switch 10 - 14 V
Others Below 1 V
D27-10 - D27-6 (RCL- - GND) L-R - W-B Seat moved rearward using reclining switch 10 - 14 V
Others Below 1 V
D27-11 - D27-6 (C- - GND) Y - W-B Seat cushion moved downward using headrest switch 10 - 14 V
Others Below 1 V
D27-12 - D27-6 (H+ - GND) B-W - W-B Headrest moved upward using headrest switch 10 - 14 V
Others Below 1 V
D27-13 - D27-6 (RCL+ - GND) L - W-B Seat moved forward using reclining switch 10 - 14 V
Others Below 1 V
D27-14 - D27-6 (+B - GND) B-R - W-B Constant 10 - 14 V
D28-1 - Body ground (SGND - Body ground) BR - Body ground Constant Below 1 V
D28-4 - D28-1 (CSNR - SGND) Y-B - BR Seat cushion switch REAR Below 1 V
Seat cushion switch FRONT 10 - 14 V
D28-5 - D28-1 (SSRS - SGND) LG - BR Slide operation 0 - 8 V
D28-6 - D28-1 (SSRV - SGND) LG-B - BR Lifter operation 0 - 8 V
D28-7 - D28-1 (SSRH - SGND) O - BR Headrest operation 0 - 8 V
D28-8 (IDL) (1) W Climate control seat ECU communication circuit -
D28-9 - D28-1 (SYSB - SGND) V-Y - BR Constant 10 - 14 V
D28-10 - D28-1 (IG - SGND) R-L - BR Ignition switch ON 10 - 14 V
D28-11 (MPX1) P-L Multiplex communication circuit -
D28-12 - D28-1 (CSNF - SGND) Y - BR Seat cushion switch FRONT Below 1 V
Seat cushion switch REAR 10 - 14 V
D28-13 - D28-1 (SSRR - SGND) GR - BR Reclining operation 0 - 8 V
D28-14 - D28-1 (SSFV - SGND) LG-R - BR Front vertical operation 0 - 8 V
D28-15 - D28-1 (SSRC - SGND) GR-R - BR Seat cushion operation 0 - 8 V
D28-16 - D28-1 (PVCC - SGND) V-W - BR Power seat operation 8 V
(1) w/Climate Control Seat.