AftertreatmentMaxxForce Diesel ECM

SPN 1761

Name: ECM Performance
Address: Fort Lauderdale, FL, 33325, US
Telephone: (888) 768-2447
Price range: $$-$$$

DPF, DEF, SCR, and NOx-reduction system faults.

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System

MaxxForce Aftertreatment

MaxxForce ECM Service

Diagnostic Overview

MaxxForce fault code SPN 1761 is commonly associated with the diesel exhaust fluid system, especially DEF level or DEF tank monitoring. On SCR-equipped International/MaxxForce applications, the ECM uses DEF level and quality information to determine whether the aftertreatment system can operate correctly. A problem in this area can lead to warning lights, inducement messages, or derate if the condition is not corrected. This code should be verified with ServiceMaxx or the applicable International diagnostic software because the exact FMI and calibration determine the final diagnostic path.

Likely Causes

Low DEF level, incorrect DEF level reading, failed DEF level sensor, contaminated DEF, wiring fault, poor connector contact, tank header problem, or related SCR/DEF system fault.

What To Check First

Confirm DEF level and quality, inspect the DEF tank/header connector, check for related DEF quality or SCR codes, and compare live DEF level data to the actual tank level.

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Related Aftertreatment Fault Codes

View All Aftertreatment Codes

SPN 2637

MaxxForce fault code SPN 2637 generally belongs in the aftertreatment monitoring group and may relate to DPF regeneration, exhaust temperature control, or aftertreatment system performance depending on the engine and calibration.

SPN 3251

MaxxForce fault code SPN 3251 is commonly associated with diesel particulate filter differential pressure.

SPN 3361

MaxxForce fault code SPN 3361 is typically associated with DEF dosing or aftertreatment fluid delivery.

SPN 3362

MaxxForce fault code SPN 3362 usually points to DEF dosing system operation, DEF pressure, or DEF delivery control depending on the calibration.

SPN 3363

MaxxForce fault code SPN 3363 is commonly associated with DEF quality, DEF dosing performance, or SCR system response.

SPN 3719

MaxxForce fault code SPN 3719 is generally tied to DPF soot-load, regeneration, or aftertreatment restriction monitoring.

View All Aftertreatment Codes →