Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3246 FMI 21 (ACM) Diesel Particulate Filter Outlet Temperature Sensor – Not Plausible
NOTE: Please see the step by step troubleshooting procedures for this specific code.
NOTE: If codes 3246-3, 3242-3, 3250-3 or 1172-3 active, fix those first.
PROBABLE CAUSES:
1. Wiring between the turbocharger compressor inlet temperature and the 120-pin MCM connection.
2. DPF outlet temperature sensor.
3. DPF outlet temperature sensor connector/harness.
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