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Terminals Of Ecu

WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
  1. Instrument Panel Junction Block Assy 
    Fig 1: Identifying Instrument Panel Junction Block (Front Side)
    G02630014Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Identifying Instrument Panel Junction Block (Back Side)
    G02630015Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINALS OF INSTRUMENT PANEL JUNCTION BLOCK

    Terminal No. (Symbols) Wiring color Condition Specified condition
    1A-1 - 1L-16 (ACC, IG - GND1) W - W-B Always 10 to 14 V
    1C-1 - 1L-16 (TRLY - GND1) R-W - W-B Light control switch is OFF
    Light control switch is TAIL and fog lamp switch is ON    		 Below 1 V 10 to 14 V
    1C-10 - 1L-16 (HRLY - GND1) O - W-B Light control switch is OFF or TAIL
    Light control switch is HEAD    		 10 to 14 V Below 1 V
    1C-12 - 1L-16 (TRLY - GND1) R-W - W-B Light control switch is OFF
    Light control switch is TAIL and fog lamp switch is ON    		 Below 1 V 10 to 14 V
    1C-23 - 1L-16 (DRL - GND1) G-R - W-B Headlamp dimmer switch is OFF
    Headlamp dimmer switch is ON    		 10 to 14 V Below 1 V
    1C-24 - 1L-16 (BECU - GND1) W-L - W-B Always 10 to 14 V
    1C-30 - 1L-16 (ALTB - GND1) B - W-B Always 10 to 14 V
    1E-7 - 1L-16 (MPX1 - GND1) R-L - W-B Ignition switch is OFF
    Ignition switch is ON    		 Below 1 V Plus generation
    1H-30 - 1L-16 (ILE - GND1) L - W-B Key cylinder illumination, room lamp is OFF
    Key cylinder illumination, room lamp is ON    		 10 to 14 V Below 1 V
    1K-10 - 1L-16 (PKB - GND1) R-W - W-B Parking brake is ON
    Parking brake is released    		 Below 1 V 10 to 14 V
    1K-17 - 1L-16 (GND2 - GND1) W-B - W-B Always Below 1 V
    1L-7 - 1L-16 (BECU - GND1) W-L - W-B Always 10 to 14 V
    1L-16 - Body ground (GND1 - Body ground) W-B - Always Below 1 V
    1N-2 - 1L-16 (HU - GND1) R-W - W-B Headlamp dimmer switch is OFF
    Headlamp dimmer switch is HIGH or Flash    		 10 to 14 V Below 1 V
    1P-5 - 1L-16 (LSWL - GND1) L-R - W-B Rear left slide door is in unlock position
    Rear left slide door is in lock position    		 Below 1 V 10 to 14 V
    1P-19 - 1L-16 (LCTY - GND1) GR - W-B Rear left slide door is open
    Rear left slide door is closed    		 Below 1 V 10 to 14 V
    B6-4 - 1L-16 (CLTE - GND1) LG - W-B Always Below 1 V
    B6-5 - 1L-16 (CLTS - GND1) G-B - W-B Ignition switch is ON Signal wave form
    B6-6 - 1L-16 (CLTB - GND1) R - W-B Ignition switch is OFF
    Ignition switch is ON    		 Below 1 V 10 to 14 V
    B6-15 - 1L-16 (HF - GND1) O - W-B Headlamp dimmer switch is OFF
    Headlamp dimmer switch is Flash    		 10 to 14 V Below 1 V
    B6-16 - 1L-16 (A - GND1) V - W-B Light control switch is OFF
    Light control switch is AUTO    		 10 to 14 V Below 1 V
    B6-17 - 1L-16 (TAIL - GND1) G-B - W-B Light control switch is OFF
    Light control switch is TAIL    		 10 to 14 V Below 1 V
    B6-22 - 1L-16 (FFOG - GND1) G-R - W-B Fog lamp switch is OFF
    Fog lamp switch is ON    		 10 to 14 V Below 1 V
    B6-23 - 1L-16 (HEAD - GND1) R-G - W-B Light control switch is OFF
    Light control switch is HEAD    		 10 to 14 V Below 1 V
    B7-5 - 1L-16 (LSWR - GND1) L-R - W-B Rear right slide door is in unlock position
    Rear right slide door is in lock position    		 Below 1 V 10 to 14 V
    B7-21 - 1L-16 (MPX2 - GND1) R-L - W-B Ignition switch is OFF
    Ignition switch is ON    		 Below 1 V Plus generation
    B7-23 - 1L-16 (PCTY GND1) R-Y - W-B Front right door is open
    Front right door is closed    		 Below 1 V 10 to 14 V
    B7-24 - 1L-16 (PCYL - GND1) R-G - W-B Front right courtesy lamp is OFF
    Front right courtesy lamp is ON    		 10 to 14 V Below 1 V
    B7-25 - 1L-16 (BCTY - GND1) G-W - W-B Back door is open
    Back door is closed    		 Below 1 V 10 to 14 V
    B7-27 - 1L-16 (LSWP - GND1) Y - W-B Front right door is in unlock position
    Front right door is in lock position    		 Below 1 V 10 to 14 V
    B8-7 - 1L-16 (FFGO - GND1) G - W-B Front fog lamp is OFF
    Front fog lamp is ON    		 10 to 14 V Below 1V
    B9-7 - 1L-16 (LSWD - GND1) BR-R - W-B Front left door is in unlock position
    Front left door is in lock position    		 Below 1 V 10 to 14 V
    B9-13 - 1L-16 (DCYL - GND1) R-W - W-B Front left courtesy lamp is OFF
    Front left courtesy lamp is ON    		 10 to 14 V Below 1V
    B9-14 - 1L-16 (DCTY - GND1) R-Y - W-B Front left door is open
    Front left door is closed    		 Below 1 V 10 to 14 V
    B9-16 - 1L-16 (RCTY - GND1) R-W - W-B Rear right slide door is open
    Rear right slide door is closed    		 Below 1 V 10 to 14 V
    B7-9 - 1L-16 (RCUT - GND1) G - W-B Interior light switch is in DOOR position, all of the rear courtesy lamps and the luggage compartment lamp are OFF
    Interior light switch is in DOOR position, each of the rear courtesy lamps and the luggage compartment lamp are ON    		 10 to 14 V Below 1 V
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