Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3242 FMI 7 (ACM) Diesel Oxidation Catalyst Inlet Temperature – Signal Not Responding

NOTE: This fault indicates the aftertreatment control module (ACM) has detected no temperature shift on the diesel oxidation catalyst (DOC) inlet temperature sensor. The most likely cause is an intermittent wiring concern (poor terminal fit, corrosion, chaffing etc.).

NOTE: If 3242-3 or 3242-4 active, fix that first.

PROBABLE CAUSES:
1. DOC inlet temperature sensor.
2. DOC inlet temperature sensor connector/harness.

Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3242 FMI 4 (ACM) Diesel Oxidation Catalyst Inlet Temperature Sensor Failed Low

Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3242 FMI 3 (ACM) Diesel Oxidation Catalyst Inlet Temperature Sensor Circuit Failed High

Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3238 FMI 2 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Failure to Activate

Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3236 FMI 9 (ACM) Exhaust Mass Signal Not Available via Controller Area Network

Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3226 FMI 21 (ACM) NOx Outlet Sensor Drift High

Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3226 FMI 20 (ACM) Selective Catalyst Reduction Outlet NOx Sensor – Drift Low

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