Lighting System -- On-Vehicle Inspection |
1. CHECK TURN SIGNAL FLASHER RELAY |

Disconnect the T40 turn signal flasher relay connector.
Measure the voltage and resistance according to the value(s) in the table below.
Tester Connection Condition Specified Condition T40-1 (IG) - Body ground Ignition switch off Below 1 V T40-1 (IG) - Body ground Ignition switch ON 11 to 14 V T40-4 (B) - Body ground Always 11 to 14 V T40-7 (E) - Body ground Always Below 1 Ω - If the result is not as specified, there may be a malfunction on the wire harness side.
- If the result is not as specified, there may be a malfunction on the wire harness side.
Reconnect the T40 turn signal flasher relay connector.
Measure the voltage according to the value(s) in the table below.
If the result is not as specified, the turn signal flasher relay may have a malfunction.Tester Connection Condition Specified Condition T40-2 (LR) - Body ground Hazard warning switch off Below 1 V T40-2 (LR) - Body ground Hazard warning switch off 11 to 14 V (60 to 120 times per minute) T40-2 (LR) - Body ground Ignition switch ON and turn signal switch (right turn) off Below 1 V T40-2 (LR) - Body ground Ignition switch ON and turn signal switch (right turn) ON 11 to 14 V (60 to 120 times per minute) T40-3 (LL) - Body ground Hazard warning switch off Below 1 V T40-3 (LL) - Body ground Hazard warning switch on 11 to 14 V (60 to 120 times per minute) T40-3 (LL) - Body ground Ignition switch ON and turn signal switch (left turn) off Below 1 V T40-3 (LL) - Body ground Ignition switch ON and turn signal switch (left turn) on 11 to 14 V (60 to 120 times per minute) T40-5 (EL) - Body ground Ignition switch ON and turn signal switch (left turn) off 11 to 14 V T40-5 (EL) - Body ground Ignition switch ON and turn signal switch (left turn) on Below 1 V T40-6 (ER) - Body ground Ignition switch ON and turn signal switch (right turn) off 11 to 14 V T40-6 (ER) - Body ground Ignition switch ON and turn signal switch (right turn) on Below 1 V T40-8 (HAZ) - Body ground Hazard warning switch off 11 to 14 V T40-8 (HAZ) - Body ground Hazard warning switch on Below 1 V