Introduction
Operating a Mack truck comes with its own set of challenges, and dealing with fault codes is a common one. But fear not! In this guide, we’ll navigate through the world of Mack Truck fault codes. From understanding what they mean to learning how to retrieve and troubleshoot them, we’ve got you covered. Let’s dive into the world of Mack Truck fault codes and keep your rig on the road.
*Please press the following to search through the Mack fault codes list: CTRL+ F
| Emissions Fault Code | Component/Function | “FMI Codes” |
| MID 128 PID 81 | Particulate Trap Differential Pressure | 0, 2, 3, 5, 12 |
| MID 128 PID 94 | Fuel Pressure | 1, 3, 5, 7 |
| MID 128 PID 102 | Boost Pressure | 0, 2, 3, 5, 11 |
| MID 128 PID 103 | Turbo Speed | 0, 1, 9 |
| MID 128 PID 105 | Boost Temperature | 2, 4, 5, 10 |
| MID 128 PID 108 | Ambient Pressure | 2, 3, 4 |
| MID 128 PID 110 | Coolant Temperature | 0, 2, 4, 5, 10 |
| MID 128 PID 153 | Crankcase Pressure | 0, 1, 2, 3, 5 |
| MID 128 PID 171 | Ambient Air Temperature | 9 |
| MID 128 PID 173 | Exhaust Gas Temperature Sensor #1 | 0, 2, 4, 5, 10 |
| MID 128 PID 354 | Relative Air Humidity | 3, 5 |
| MID 128 PID 404 | Compressor Discharge Temperature | 0 |
| MID 128 PID 411 | EGR Differential Pressure | 2, 3, 5 |
| MID 128 PID 412 | EGR Temperature After Cooler | 0, 4, 5, 10 |
| MID 128 PPID 35 | EGR Mass Flow | 0, 1 |
| MID 128 PPID 89 | VGT SRA Temperature | 0 |
| MID 128 PPID 122 | Vehicle Compression Brake (VCB) | 1, 3, 4, 5 |
| MID 128 PPID 272 | Air Temperature For Humidity Compensation | 4, 5 |
| MID 128 PPID 326 | Soot Level | 0, 11, 14 |
| MID 128 PPID 328 | After Treatment Injection Shut-off Valve | 3, 4, 5, 7, 14 |
| MID 128 PPID 329 | After Treatment Fuel Injector | 3, 4, 5, 7, 14 |
| MID 128 PPID 387 | Exhaust Gas Temperature Sensor #2 | 2, 4, 5, 10 |
| MID 128 PPID 436 | Exhaust Gas Temperature Sensor #3 | 0, 2, 4, 5, 10 |
| MID 128 PPID 437 | After Treatment Injector Fuel Pressure | 3, 4, 5, 7, 14 |
| MID 128 PSID 98 | Boost Air System | 0, 1 |
| MID 128 PSID 10 | 9 Coolant Temperature | 7, 12 |
| MID 128 SID 1 | Injector #1 | 3, 5, 7, 12, 14 |
| MID 128 SID 2 | Injector #2 | 3, 5, 7, 12, 14 |
| MID 128 SID 3 | Injector #3 | 3, 5, 7, 12, 14 |
| MID 128 SID 4 | Injector #4 | 3, 5, 7, 12, 14 |
| MID 128 SID 5 | Injector #5 | 3, 5, 7, 12, 14 |
| MID 128 SID 6 | Injector #6 | 3, 5, 7, 12, 14 |
| MID 128 SID 21 | Camshaft Speed Sensor | 2, 3, 8 |
| MID 128 SID 22 | Crankshaft Speed Sensor | 2, 3, 8 |
| MID 128 SID 27 | Variable Geometry Turbocharger Actuator #1 | 2, 4, 7, 9, 13 |
| MID 128 SID 33 | Cooling Fan Control | 3, 4, 5 |
| MID 128 SID 146 | EGR Valve | 1 3, 5, 7, 12 |
| MID 128 SID 211 | 5V Supply | 2 3, 4 |
| MID 128 SID 230 | Buffered IVS | 3, 5 |
| MID 128 SID 232 | 5V Supply 1 | 3, 4 |
| MID 144 PID 72 | Output Supply #1 | 3, 4 |
| MID 144 PID 73 | Output Supply #2 | 3, 4 |
| MID 144 PID 84 (with Tachometer) | Road Speed | 2 |
| MID 144 PID 84 | Road Speed | 2 |
| MID 144 PID 91 | Percent Accelerator Pedal Position | 3, 4, 5, 6, 14 |
| MID 144 PPID 61 | Engine Retarder Switch | 7 |
| MID 144 PPID 69 | Buffered Idle Validation Switch #1 output | 3, 4 |
| MID 144 PPID 70 | Output Supply #3 | 4 |
| MID 144 PPID 71 | Output Supply #4 | 4 |
| MID 144 PPID 265 | Vehicle Speed Sensor supply | 3, 4 |
| MID 144 PSID 2 | Idle Validation Switch #2 | 7 |
| MID 144 SID 230 | Idle Validation Switch #1 | 7 |
Understanding Mack Truck Fault Codes List
Mack Truck fault codes are alphanumeric codes generated by the truck’s onboard diagnostics system (OBD) to indicate specific issues or malfunctions in various systems. These codes are essential for diagnosing problems and keeping your truck in top condition.
How to Retrieve Mack Truck Fault Codes
Retrieving Mack Truck fault codes can be done using a diagnostic tool that connects to the OBD port of your truck. This tool communicates with the truck’s computer system and provides valuable insights into any issues that may be affecting your vehicle.
Common Mack Truck Fault Codes and Meanings
Engine Fault Codes
- SPN 1231 – FMI 2 – Low EGR Valve 1 Position Voltage
- SPN 523010 – FMI 4 – Turbocharger 1 Speed Data Erratic
- SPN 1569 – FMI 31 – Engine Protection Torque Derate – Condition Exists
- SPN 558 – FMI 2 – Injector Cylinder #2 Needle Control Valve Circuit Data Erratic
Transmission Fault Codes
- SPN 190 – FMI 2 – Engine Speed Data Erratic
- SPN 523010 – FMI 4 – Transmission Control System Fault
- SPN 639 – FMI 9 – Transmission Speed Data Not Plausible
- SPN 5031 – FMI 9 – Transmission Abnormal Update Rate
Electrical Fault Codes
- SPN 101 – FMI 16 – Battery Voltage Below Normal or Shorted to Low Source
- SPN 970 – FMI 16 – Engine Electronic Control Module (ECM) Power Supply Voltage Below Normal or Shorted to Low Source
- SPN 164 – FMI 11 – Engine ECM Processor Resetting Due to Voltage Below Normal or Shorted to Low Source
- SPN 611 – FMI 16 – Injector Actuation Pressure 1 Circuit Voltage Below Normal or Shorted to Low Source
Causes of Mack Truck Fault Codes
Mack Truck fault codes can be triggered by various factors, including sensor malfunctions, electrical issues, fuel system problems, or mechanical faults. Identifying the root cause is crucial for effective troubleshooting.
Troubleshooting Mack Truck Fault Codes List
DIY Solutions
Many Mack Truck fault codes can be resolved through DIY troubleshooting. This may involve checking sensor connections, inspecting wiring, or cleaning components. Refer to your truck’s manual for specific guidance.
Seeking Professional Help
For complex or persistent fault codes, it’s advisable to seek assistance from a certified Mack Truck technician. They have the expertise and diagnostic tools to diagnose and repair more challenging issues.
Preventive Maintenance for Mack Trucks
Regular maintenance is the key to preventing Mack Truck fault codes and ensuring the longevity of your truck. Follow the manufacturer’s recommended maintenance schedule, including oil changes, filter replacements, and system inspections.
Unlocking the Benefits of 30 Min DPF Clean
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30 Min DPF Clean: Your Comprehensive Solution
What truly distinguishes 30 Min DPF Clean is our all-encompassing approach to machinery maintenance. We don’t confine ourselves solely to DPF cleaning; instead, we excel in a wide array of services, including Exhaust Gas Recirculation (EGR), Selective Catalytic Reduction (SCR), Diesel Oxidation Catalyst (DOC), and Catalytic Converter cleaning. Through the deployment of cutting-edge technology, we guarantee that your machinery operates without a hitch, effectively minimizing the occurrence of those troublesome fault codes. Bring in your Mack for a DPF cleaning today!
Top-notch Cleaning for Peak Performance
At 30 Min DPF Clean, we firmly grasp the notion that a clean machine is indeed a content machine. This is precisely why we go above and beyond in the pursuit of eliminating ash, soot, and any other undesirable residues from your diesel engines. Our exceptional DPF Cleaning service is the key to unlocking the pinnacle of performance for your machinery, providing you with the peace of mind you deserve while keeping those pesky fault codes firmly at bay.
Competitive Rates, Unmatched Service Quality
Ultimately, 30 Min DPF Clean stands as the embodiment of high-quality service that doesn’t drain your budget. Our pricing model, coupled with the outstanding DPF cleaning services we provide, establishes us as the unequivocal choice for anyone seeking to extend the lifespan of their Mack machinery. So, the next time your equipment resorts to communicating through fault codes, ponder reaching out to 30 Min DPF Clean. Our adept technicians possess the proficiency required to tackle a myriad of issues, guiding you through the intricacies of the Mack Fault Codes List and swiftly getting your machinery back on track. Always bear in mind that when it comes to machinery maintenance, it’s not just about resolving problems—it’s about averting them altogether. And in that endeavor, 30 Min DPF Clean stands as your unwavering ally.
Conclusion
In conclusion, understanding and effectively dealing with Mack Truck fault codes is essential for keeping your truck on the road and minimizing downtime. By following the steps outlined in this guide, you can troubleshoot issues, perform preventive maintenance, and ensure your Mack Truck operates at its best.
FAQs (Frequently Asked Questions)
What are Mack Truck fault codes?
Mack Truck fault codes are alphanumeric codes generated by the truck’s onboard diagnostics system (OBD) to indicate specific issues or malfunctions in various systems.
How can I retrieve Mack Truck fault codes?
You can retrieve Mack Truck fault codes using a diagnostic tool that connects to the OBD port of your truck.
Can I fix Mack Truck fault codes myself?
For simple issues, you can attempt DIY solutions like checking sensor connections or cleaning components. However, for complex problems, it’s best to consult a certified technician.
How often should I check for Mack Truck fault codes?
Regularly checking for fault codes as part of your routine maintenance schedule can help catch issues early and prevent more significant problems.
Are Mack Truck fault codes unique to Mack trucks?
Yes, Mack Truck fault codes are specific to Mack trucks and indicate issues within the truck’s systems.
For more information on Mack vehicle and related services, visit the official Mack website.
