Lighting System On-Vehicle Inspection


  1. CHECK TURN SIGNAL FLASHER RELAY

Lighting System -- On-Vehicle Inspection



1. CHECK TURN SIGNAL FLASHER RELAY



Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Lighting.Lighting System.Lighting System On-Vehicle Inspection

  1. Disconnect the T23 relay connector.

  1. Measure the voltage of the wire harness side connector.

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Condition
    T23-1 (IG) - Body ground
    		Ignition switch OFF
    		Below 1 V
    T23-1 (IG) - Body ground
    		Ignition switch ON
    		10 to 14 V
    T23-4 (+B) - Body ground
    		Always
    		10 to 14 V
    T23-7 (E) - Body ground
    		Always
    		Below 1 V
    1. If the result is not as specified, there may be a malfunction on the wire harness side.

  1. Reconnect the T23 relay connector.

  1. Measure the voltage of the connector.

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Condition
    T23-2 (LR) - Body ground
    		Hazard warning switch OFF
    		Below 1 V
    T23-2 (LR) - Body ground
    		Hazard warning switch OFF
    		10 to 14 V (60 to 120 times per minute)
    T23-2 (LR) - Body ground
    		Ignition switch ON and turn signal switch (right turn) OFF
    		Below 1 V
    T23-2 (LR) - Body ground
    		Ignition switch ON and turn signal switch (right turn) ON
    		10 to 14 V (60 to 120 times per minute)
    T23-3 (LL) - Body ground
    		Hazard warning switch OFF
    		Below 1 V
    T23-3 (LL) - Body ground
    		Hazard warning switch ON
    		10 to 14 V (60 to 120 times per minute)
    T23-3 (LL) - Body ground
    		Ignition switch ON and turn signal switch (left turn) OFF
    		Below 1 V
    T23-3 (LL) - Body ground
    		Ignition switch ON and turn signal switch (left turn) ON
    		10 to 14 V (60 to 120 times per minute)
    T23-5 (EL) - Body ground
    		Ignition switch ON and turn signal switch (left turn) OFF
    		10 to 14 V
    T23-5 (EL) - Body ground
    		Ignition switch ON and turn signal switch (left turn) ON
    		Below 1 V
    T23-6 (ER) - Body ground
    		Ignition switch ON and turn signal switch (right turn) OFF
    		10 to 14 V
    T23-4 (ER) - Body ground
    		Ignition switch ON and turn signal switch (right turn) ON
    		Below 1 V
    T23-8 (HAZ) - Body ground
    		Hazard warning switch OFF
    		10 to 14 V
    T23-8 (HAZ) - Body ground
    		Hazard warning switch ON
    		Below 1 V
    If the result is not as specified, the relay may have a malfunction.