Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3250 FMI 3 (ACM) Diesel Oxidation Catalyst Outlet Temperature Circuit Failed High
NOTE: Please see the step by step troubleshooting procedures for this specific code.
NOTE: If codes 3250-3, 3242-3, 3246-3, or 1172-3 are active, fix those first.
PROBABLE CAUSES:
1. Turbocharger compressor inlet sensor.
2. Turbocharger compressor inlet sensor harness/connector.
3. DOC outlet temperature sensor.
4. DOC outlet temperature sensor harness/connector.
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SERVICE MANUAL 3000 AND 4000 SERIES GEN 4 GENERATION – ALLISON
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