SureTrack Community Fix: Stereo Boy Syndrome

Real Fixes from ShopKey’s SureTrack® expert information resource are documented issues from actual shop repair orders and community discussions. Read on to see how SureTrack can help you correct issues that are not easily diagnosed using OEM information alone. SureTrack is currently available free with the purchase of a current Snap-on® diagnostic software version or in our ShopKey Pro product.


One of the worst things for a technician is when a customer doesn’t tell you everything they should when they bring in their car. SureTrack community member MECHANICAUTO had a Honda Odyssey in the shop that had the flashers coming on when using the turn signals. They posed the question to the community, and with the help of fellow community member ericsautomotive and JimA, they were able to resolve the issue quickly. ericsautomotive calls the problem “Stereo Boy” syndrome.

The following Community Fix summarizes the interaction between members of the community that led to the solution.

Vehicle
2003 Honda Odyssey EX 3.5L

Title
Flashers come on when turning on blinkers, corrected trailer wiring.

Complaint
Customer complains that 4-way flashers come on when using the turn signals.

Diagnostic Steps Performed/Parts Replaced
When using the turn signals, the 4-way flashers come on. Tested the hazard/turn signal relay and it is ok. Tested the hazard switch and it is ok. No other faults found.

Cause
The owner’s husband installed a tow harness and had the wires crossed and connected together causing the all the bulbs to flash when the turn signal was operated.

Correction
Corrected trailer tow wiring, turn signals and flashers now operate properly.


SureTrack® adds to the power of ShopKey Pro with an exclusive combination of expert knowledge and detailed parts replacement records, all wrapped in an interactive community. Designed to help automotive shops increase accuracy and efficiency from diagnosis to completed repair, the industry’s most comprehensive repair information resource is just a few clicks away.

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About the Author

Nick Taylor

Nick Taylor is the SureTrack Community Administrator and a Senior Applications Specialist at Mitchell 1 with over 25 years of experience with electronic repair data systems. Nick previously worked in the automotive dismantling and engine rebuilding industries.