Updated Engine Software is Now Available on Certain C9.3, C13, C15, and C18 Engines {108U, 1920} Caterpillar

Electric Power Generation

XQ375 (S/N: X3F1-UP)

Engine

C13 (S/N: N3F1-UP)

C15 (S/N: N5F1-UP)

C18 (S/N: N8F1-UP)

Generator Set

C18 GEN SET (S/N: ME51-UP; T351-UP; RT81-UP; X5F1-UP; T4X1-UP)

XQ425 (S/N: X8H1-UP)

Industrial Engine

C13 IND (S/N: JR91-UP)

C9.3 (S/N: CS91-UP)

The engine software has been updated for the features listed below:

• Demand fan driver maximum current change.

• High Diesel Exhaust Fluid (DEF) concentration code.

• Low NOx conversion level-2 event.

• High crankcase pressure, engine shutdown flag latch.

The following changes are now available for the products within the listed serial numbers.

Engine Software and After Treatment Software

The updated engine software and corresponding after treatment software for engine models are listed below in Table 1.

The new software is available in the form of a flashfile through the Caterpillar Service Information System (SIS). A newer part number may be available. SIS web only displays the latest available flashfile.

Note: The Prod 7.1 software update will require Reason Code 5 factory passwords. The Prod 7.1 software complies with European Union (EU) Stage V.

Cat^® Electronic Technician (ET)

1. New 2018B or new version of Cat^® Electronic Technician (ET) will be required.

New Features

1. The new configuring parameter to configure Clean Emission Module (CEM) to the Cat ET service tool for Industrial Engines are explained below.

   New Cat ET Service Tool configuring parameter options are now available to select.

   Note: The default configuring parameter is the DPF Type 1 configuration, unless the engine was built as a Stage 5 Emissions Compliant engine.

   DPF Type 1: Tier 4 Final/ European Union Stage 4 Emissions Compliant Engines.

   DPF Type 2: European Union Stage 5 Emissions Compliant Engines.

   1. The new configuring parameter to configure Clean Emission Module (CEM) to Cat ET for Industrial Engines are explained below.

   2. Add a configurable parameter that allows future engines to be factory fit with only a new CEM with an Ultra Low Mean Pour Size (ULMPS) Diesel Particulate Filter (DPF). While supporting the current field production of CEM with a standard DPF in the field.

   3. New CEM packages with the ULMPS DPF which are required for EU Stage V compliance, will have a different serial number prefix than current T4F/EU IV CEM packages.

   4. The CEM serial number detection system continuously checks the ET programmed CEM serial number prefix versus an allowable CEM serial number prefix map in the software. If there is a mismatch, a fault code is activated and a derate is applied.

EU Stage V Requirements

1. The EU Stage V requires more fault codes to be included to Particulate Control Device (PCD) fault code list.

   Note: All PCD codes will be persistent active and password protected.

2. The PCD code list will be updated with codes listed in Table 2.
   Show/hide table

   Table 2

   SPN-FMI	Code Description
   3251–18	After treatment #1 DPF Differential Pressure : Low - Moderate severity
   3251–3	After treatment #1 Differential Pressure : Voltage Above Normal
   3251–4	After treatment #1 DPF Differential Pressure : Voltage below Normal
   3251–13	After treatment #1 DPF Differential Pressure : Out of Calibration
   3251–2	After treatment #1 DPF Differential Pressure : Erratic, Intermittent, or Incorrect
   3242–3	After treatment #1 Diesel Particulate Filter Intake Temperature : Voltage above Normal
   3242–4	After treatment #1 Diesel Particulate Filter Intake Temperature : Voltage Below Normal
   2630–3	CAC Out Temperature : Voltage Above Normal
   2630–4	CAC Out Temperature : Voltage Below Normal
   3563–3	Engine Intake Manifold #1 Absolute Pressure : Voltage Above Normal
   3563–4	Engine Intake Manifold #1 Absolute Pressure : Voltage Below Normal
   108–3	Barometric Pressure : Voltage Above Normal
   108–4	Barometric Pressure : Voltage Below Normal
   108–21	Barometric Pressure : Data Drifted Low
   3563–13	Engine Intake Manifold #1 Absolute Pressure : Out of Calibration
   3563–21	Engine Intake Manifold #1 Absolute Pressure : Data Drifted Low
   3609–3	Intake Pressure : Voltage Above Normal
   3609–4	Intake Pressure : Voltage Below Normal
   3609–13	Intake Pressure : Out of Calibration
   3609–21	Intake Pressure Sensor: Data Drifted Low (for loss of 5V supply failure mode detection on T4F only, Stage 5 EU trip voltage below normal code when this failure mode is detected)

3. Add air inlet temperature sensor support on "J1-17" or "J2-94" ( 256-6453 Temperature Sensor).

New Enhancement on Engine Software

1. Engine Exhaust Gas Recirculation (EGR) level-1 strategy change moved following diagnostic to persistent active.

   1. Engine EGR valve control : Current Below Normal (SPN-FMI / CID-FMI, 2791-5 / 3405–5).

   2. Low EGR mass flow rate (2659–17 E1095 (1)).

2. Diesel exhaust fluid (DEF) quality sensor strategy has been updated for improved diagnostics.

   1. Adjusted sensitivity and severity when DEF level is below 20 percentage and / or when DEF temperature is above 60° C (140° F). This change should reduce low DEF concentration, DEF quality sensor erratic, or DEF quality sensor blocks codes from occurring.

3. The updated engine software has Improved strategy for DEF quality detection.

4. The updated engine software has been improved for high after treatment Selective Catalytic Reactor (SCR) reagent concentration fault reaction.

   1. After treatment #1 DEF concentration (SPN-FMI / EID - FMI, 3516-16 / E1365 (2)).

   2. After treatment #1 DEF tank fluid quality sensor : Erratic Intermittent, or Incorrect (SPN-FMI / CID-FMI, 3516-2 / 3100-2).

Upgrades on Engine Software

1. Demand fan driver max current has been upgraded.

   1. Hydraulic demand fan service tool run time maximum current configuration changed from 3.7 Amps to 2.5 Amps to meet the Engine Control Module (ECM) hardware limits.

2. High DEF concentration code has been upgraded.

   1. Out of range threshold has been changed to reduce false tripping code.

   2. The code remains however the amber warning and the protect lamp turned off.

3. Low NOx conversion level-2 event has been upgraded.

   1. Low NOx conversion diagnostic will be active if high concentration code is active.

   2. High DEF concentration code is active, and new threshold has been implemented to prevent risk of false reset of low NOx CR L2 and second occurrence of inducement. This change is required to ensure tampering detection and corresponding inducement for scenario.

   3. High DEF concentration code is not active, and existing fail threshold remains unchanged.

4. Engine shutdown flag latch activated for high crankcase pressure.

   1. Engine shutdown is activated for high crankcase pressure level 1, and software latches due to de-bounce time will not reset until key cycle.