The Caterpillar 311B excavator may log a 2LS interference fault (MID 122 – CID 0269 – FMI 03). According to
Continue reading
Category: Caterpillar Trouble Repair
CAT ET 2026B Caterpillar Electronic Technician Software: Complete Guide to CAT Communication Adapter 3, Features, Setup & Compatibility
Caterpillar Electronic Technician (CAT ET) is professional diagnostic software designed to communicate with electronically controlled Caterpillar engines, generators, and heavy
Continue reading
Can CAT ET Program ECMs and ECUs? Caterpillar ECM Flashing Guide
Yes. CAT ET can program, configure, diagnose, and flash compatible Caterpillar ECMs with the correct software, communication adapter, flash file,
Continue reading
How to Fix CAT SIS Software Not Opening or Loading Properly
If your CAT SIS software (Caterpillar Service Information System) won’t open or won’t load properly, the issue may be related
Continue reading
How to Fix Caterpillar C9 Engine Fault Code 31-84-1: Vehicle Speed Signal Lost
Caterpillar C9 engine fault code 31-84-1 indicates that the Engine Control Module has detected a loss of the vehicle speed
Continue reading
Does CAT ET 2019C Support a 2014 CAT 259D Skid Steer
Issue: CAT ET 2019C Cannot Support CAT 259D ECM A customer installed CAT ET 2019C and followed our video. When
Continue reading
Caterpillar SIS 2023: The Ultimate Guide to CAT Service & Parts Manuals
Are you looking for the most comprehensive resource for Caterpillar machinery repair? The Caterpillar SIS (Service Information System) 2023 is
Continue reading
Troubleshooting Caterpillar 320E Excavator Stalling at Low RPM
If your Caterpillar 320E Excavator (AWS Engine) is stalling at low RPM, it can lead to costly downtime and safety
Continue reading
How to Make CAT Diagnostic Tool Work on On-Highway Trucks (North America Guide)
The Problem: No Power, No Lights, No Connection A common frustration for technicians is connecting a CAT Communication Adapter to
Continue reading
How to Fix CAT ET3 Error #134 “Device Not Recognized”
When using the Caterpillar Communication Adapter III (CAT ET3) with Caterpillar Electronic Technician (CAT ET) software, some users may encounter
Continue reading
CAT ET 2026B + Genuine Adapter III: Full Diagnostic Solution with Pre-Installed Laptop
Looking for a complete Caterpillar diagnostic solution ready to use out of the box? The 2026B CAT Caterpillar ET Diagnostic
Continue reading
Caterpillar ET 2026B 2026A 2025C 2024A 2023A 2019C Electronic Technician Software Free Download
What is Caterpillar ET? Caterpillar Electronic Technician (Cat ET) is diagnostic software required to communicate, diagnose and service electronically controlled
Continue reading
Caterpillar C9 Engine Throttle Position Out of Calibration (28 / PID 91-13) – Quick Fix Guide
The fault code 28 / PID 91-13 – Throttle Position Out of Calibration is a common issue on Caterpillar C9
Continue reading
Is CAT ET 2025C compatible with Windows 11
“Is CAT ET 2025C compatible with Windows 11?” Yes, the latest versions (2025A/B/C) are designed to run on Windows 10
Continue reading
Caterpillar Machine Fuel Rail Pump Solenoid Test Using CAT ET 2026A
This guide explains how to use CAT ET 2026A diagnostic software to perform the Fuel Rail Pump Solenoid Test on
Continue reading
Disassemble Caterpillar 320D2 Excavator Water Pump
Disassembly Procedure Begin: a. Remove the fan and fan pulley. Refer to Disassembly and Assembly, “Fan – Remove and Install”.
Continue reading
Caterpillar SIS 2023 CAT SIS 2023 Service Information System
Caterpillar SIS 2023 CAT SIS 2023 Service Information System There are 2 options for you to choose before order please:
Continue reading
Caterpillar SIS 2023 Software Download and Installation
What’Caterpillar SIS? Caterpillar SIS (CAT SIS) 2023 is illustrated as a guide to the maintenance and repair of the full
Continue reading