The wiring circuit from the main switch to the turn signal relay coupler is faulty and must be repaired.
Connect the pocket tester (DC 20 V) to the turn signal relay coupler (wire harness side) as shown.
Positive tester probe -Negative tester probe ground f brown/white ®
Turn the main switch to "ON". Measure the voltage (DC 12 V) on brown/white ® at the turn signal relay coupler (wire harness side). ► Is the voltage within specification?
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