Erratic turn signal relay operation on Volkswagen Jetta

Average mileage: 145,500 (100,000–191,000)
2 model years affected: 1998, 2002
2 people reported this problem
2 people shared problem details
1998 Volkswagen Jetta191,000
turn signals (emergency)flashed when alarm sounded after disconnecting Alarm, no more turn signals, horn will not sound
An accumulation of dust inside the body of the turn signal switch can cause a partially closed circuit, which results in the turn signal relay intermittently clicking at a high rate. Spraying a small amount of residue-free electronic contact cleaner (such as Electrosolve) inside the turn signal switch can resolve this problem. The turn signal relay is not the root cause of this problem, but may be damaged by it.
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