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TSB Document:

Affected Component: POWER TRAIN

Summary
Some 2015-2019 Transit vehicles equipped with a 3.2L diesel engine may exhibit Drive To Clean maintenance messages and/or an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2459, P2463, and/or P246C. Vehicles may also exhibit frequent automatic exhaust regeneration attempts. This may be due to vehicles being used in stationary or off-highway, low speed applications. If automatic regeneration attempts are unsuccessful, these symptoms may be a result of soot accumulation in the diesel particulate filter (DPF). These vehicles may benefit from operator commanded regeneration (OCR) capability so complete regeneration cycles may be performed in a stationary setting. Some 2015-2019 Transit vehicles equipped with a 3.2L diesel engine may exhibit Drive To Clean maintenance messages and/or an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2459, P2463, and/or P246C. Vehicles may also exhibit frequent automatic exhaust regeneration attempts. This may be due to vehicles being used in stationary or off-highway, low speed applications. If automatic regeneration attempts are unsuccessful, these symptoms may be a result of soot accumulation in the diesel particulate filter (DPF). These vehicles may benefit from operator commanded regeneration (OCR) capability so complete regeneration cycles may be performed in a stationary setting.

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Date Published
MAR 04, 2019
NHTSA TSB #
10156503
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