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December 21, 2021 Service bulletin

Pin location change on an ECU to properly assign both doors open signal and the horn relay signal.

Proterra technical service bulletin SC-21-162 for 2019-2020 Proterra Catalyst and 2021 Proterra ZX5.

Bulletin number
SC-21-162 (SC-21-162)
Component
Electrical system
Summary
Pin location change on an ECU to properly assign both doors open signal and the horn relay signal.

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