Lighting System Terminals Of Ecu

Vehicle Exterior. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Lighting (Ext). Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

  1. CHECK AUTOMATIC LIGHT CONTROL SENSOR (w/ Automatic Light Control System)

Lighting System -- Terminals Of Ecu



CHECK AUTOMATIC LIGHT CONTROL SENSOR (w/ Automatic Light Control System)

Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Lighting (Ext).Lighting System.Lighting System Terminals Of Ecu

  1. Disconnect the G96 automatic light control sensor connector.

  2. Measure the voltage and resistance according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    G96-1 (IG) - Body ground
    		R-L - Body ground
    		Ignition power supply
    		Ignition switch off
    		Below 1 V
    Ignition switch ON
    		11 to 14 V
    G96-2 (B) - Body ground
    		L-Y - Body ground
    		Battery power supply
    		Always
    		11 to 14 V
    G96-5 (H) - Body ground
    		GR - Body ground
    		H-LP relay signal input
    		Headlight dimmer switch in HEAD position
    		Below 1 V
    Headlight dimmer switch not in HEAD position
    		11 to 14 V
    G96-7 (T) - Body ground
    		LG-B - Body ground
    		Taillight relay signal input
    		Headlight dimmer switch in TAIL position
    		Below 1 V
    Headlight dimmer switch not in TAIL position
    		11 to 14 V
    G96-6 (A) - Body ground
    		P-L - Body ground
    		Ground
    		Headlight dimmer switch in AUTO position
    		Below 1 Ω
    Headlight dimmer switch not in AUTO position
    		10 kΩ or higher
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the G96 automatic light control sensor connector.

  4. Measure the voltage according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    G96-3 (CTY) - Body ground
    		R-B - Body ground
    		Front door courtesy light switch LH signal input
    		Front door LH open
    		Below 1 V
    Front door LH closed
    		11 to 14 V
    G96-5 (H) - Body ground
    		GR - Body ground
    		H-LP relay drive output
    		Ignition switch ON
    Headlight dimmer switch in AUTO position
    Automatic light control sensor covered with a hand
    Low beam headlights come on
    		Below 1 V
    Ignition switch ON
    Headlight dimmer switch in AUTO position
    Automatic light control sensor exposed to ambient light
    Low beam headlights turn off
    		11 to 14 V
    G96-7 (T) - Body ground
    		LG-B - Body ground
    		Taillight relay drive output
    		Ignition switch ON
    Headlight dimmer switch in AUTO position
    Automatic light control sensor covered with a hand
    Taillights come on
    		Below 1 V
    Ignition switch ON
    Headlight dimmer switch in AUTO position
    Automatic light control sensor exposed to ambient light
    Taillights turn off
    		11 to 14 V
    If the result is not as specified, the automatic light control sensor may have a malfunction.