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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Engine » Electrics: Starter, Ignition, Coil, Spark Plugs/Cables, ECM, "TPS Reset" » DTC 53 What Does it Mean? « Previous Next »

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Teeps
Posted on Sunday, August 29, 2010 - 11:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
The RED Engine light came on for about 10 miles, then went off.
Then the next week it came on and went off 2 times.

When I checked the DTC (ecm spy) there was one for the O2 sensor and the other was 53.

The service manual said ecm failure.
Both DTCs clear and the bike runs fine.
Bike ran fine during all Engine light "ON" events too...

Any ideas just what the internal ecm failure might mean?
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