2013 Mack OBD2 Codes
Mack trucks newer than 2013 have OBD2 code support. Please see the table below for mfg specific OBD2 codes as well as the generic code pages on this website for non-Mack specific codes. Mack is a brand of Volvo with shared engine design.
2010 Mack OBD Codes
Note: The use of a scan tool is necessary to perform diagnostic work as well as clearing of any diagnostic trouble codes (DTCs). DTC(s) can no longer be cleared using the vehicles instrument cluster digital display and stalk switch control.
| Trouble Code | Fault Location |
| ECM SPN 84 | Wheel-Based Vehicle Speed – MID 128 PID 84 |
| ECM SPN 91 | Accelerator Pedal Position 1 – MID 128 PID 91 |
| ECM SPN 94 | Engine Fuel Delivery Pressure – MID 128 PID 94 |
| ECM SPN 97 | Water in Fuel Indicator – MID 128 PID 97 |
| ECM SPN 98 | Engine Oil Level – MID 128 PID 98 |
| ECM SPN 100 | Engine Oil Pressure – MID 128 PID 100 |
| ECM SPN 102 | Engine Intake Manifold 1 Pressure – MID 128 PID 102 |
| ECM SPN 103 | Engine Turbocharger 1 Speed – MID 128 PID 103 |
| ECM SPN 105 | Engine Intake Manifold 1 Temperature – MID 128 PID 105 |
| ECM SPN 108 | Barometric Pressure – MID 128 PID 108 |
| ECM SPN 110 | Engine Coolant Temperature – MID 128 PID 110 |
| ECM SPN 111 | Engine Coolant Level – MID 128 PID 111 |
| ECM SPN 153 | Engine High Resolution Crankcase Pressure – MID 128 PID 153/PSID 23 |
| ECM SPN 158 | Keyswitch Battery Potential – MID 128 PID 158/PSID 124 |
| ECM SPN 171 | Ambient Air Temperature – MID 128 PID 171 |
| ECM SPN 173 | Engine Exhaust Gas Temperature (EGT) – MID 128 PID 173 |
| ECM SPN 175 | Engine Oil Temperature 1 – MID 128 PID 175 |
| ECM SPN 177 | Transmission Oil Temperature – MID 128 PID 177 |
| ECM SPN 188 | Engine Speed At Idle |
| ECM SPN 190 | Engine Speed – MID 128 PID 190 |
| ECM SPN 228 | Speed Sensor Calibration – MID 128 PID 228 |
| ECM SPN 237 | Vehicle Identification Number – MID 128 PSID 161/162 |
| ECM SPN 245 | Total Vehicle Distance – MID 128 PID 245 |
| ECM SPN 251 | Time – MID 128 PID 251 |
| ECM SPN 252 | Date – MID 128 PID 252 |
| ECM SPN 411 | Engine Exhaust Gas Recirculation Differential Pressure – MID 128 PID 411 |
| ECM SPN 412 | Engine Exhaust Gas Recirculation Temperature – MID 128 PID 412 |
| ECM SPN 558 | Accelerator Pedal 1 Idle Validation Switch – MID 128 SID 230 |
| ECM SPN 626 | Intake Air Heater (IAH) Relay – MID 128 PID 45 |
| ECM SPN 628 | Program Memory – MID 128 SID 240 |
| ECM SPN 629 | Electronic Control Unit (ECU) 1 – MID 128 SID 254 |
| ECM SPN 630 | Calibration Memory – MID 128 SID 253 |
| ECM SPN 631 | Calibration Module – MID 128 PSID 77/PSID 124 |
| ECM SPN 633 | Engine Fuel Actuator 1 Control Command – MID 128 SID 18 |
| ECM SPN 636 | Camshaft Position Sensor (CMP) – MID 128 SID 21 |
| ECM SPN 637 | Crankshaft Position Sensor (CKP) – MID 128 SID 22 |
| ECM SPN 639 | SAE J1939 Data Link 1 – MID 128 SID 231 |
| ECM SPN 641 | Engine Variable Geometry Turbocharger (VGT) Actuator 1 – MID 128 SID 27 |
| ECM SPN 642 | Engine Variable Geometry Turbocharger (VGT) Actuator 2 – MID 128 PPID 89 |
| ECM SPN 647 | Engine Fan Clutch Output Device Driver – MID 128 SID 33 |
| ECM SPN 651 | Engine Injector Cylinder 1 – MID 128 SID 1 |
| ECM SPN 652 | Engine Injector Cylinder 2 – MID 128 SID 2 |
| ECM SPN 653 | Engine Injector Cylinder 3 – MID 128 SID 3 |
| ECM SPN 654 | Engine Injector Cylinder 4 – MID 128 SID 4 |
| ECM SPN 655 | Engine Injector Cylinder 5 – MID 128 SID 5 |
| ECM SPN 656 | Engine Injector Cylinder 6 – MID 128 SID 6 |
| ECM SPN 677 | Engine Starter Motor Relay – MID 128 SID 39 |
| ECM SPN 729 | Intake Air Heater (IAH) 1 – MID 128 SID 70 |
| ECM SPN 730 | Intake Air Heater (IAH) 2 – MID 128 SID 71 |
| ECM SPN 975 | Estimated Percent Fan Speed – (MID 128 PID 26) |
| ECM SPN 1072 | Engine Compression Brake Output #1 – MID 128 PPID 122 |
| ECM SPN 1127 | Engine Turbocharger Intake Manifold Pressure (IMP) – MID 128 PSID 98 |
| ECM SPN 1136 | Engine Control Module (ECM) Temperature – MID 128 PPID 55 |
| ECM SPN 1198 | Anti–theft Random Number – MID 128 PID 224 |
| ECM SPN 1231 | SAE J1939 Data Link 2 – MID 128 PSID 229/232 |
| ECM SPN 1265 | Engine Piston Cooling Oil Pressure Actuator – MID 128 SID 85 |
| ECM SPN 1322 | Engine Misfire for Multiple Cylinders – MID 128 PSID 27 |
| ECM SPN 1659 | Engine Coolant System Thermostat – MID 128 PSID 109 |
| ECM SPN 1675 | Engine Starter Mode – MID 128 SID 39 |
| ECM SPN 1677 | Aftertreatment DPF Auxiliary Heater Mode – MID 128 PSID 25 |
| ECM SPN 1761 | Aftertreatment Diesel Exhaust Fluid (DEF) Tank Level – PPID 278 |
| ECM SPN 2003 | Transmission Control Module (TCM) Status – MID 128 PSID 205 |
| ECM SPN 2017 | Cruise Control Status – MID 128 PID 85 |
| ECM SPN 2029 | Invalid or Missing Data from Vehicle ECU – MID 128 PSID 201 |
| ECM SPN 2629 | Engine Turbocharger Compressor Outlet Temperature – MID 128 PID 404 |
| ECM SPN 2659 | Engine Exhaust Gas Recirculation (EGR) Mass Flow Rate – MID 128 PPID 35 |
| ECM SPN 2791 | Engine Exhaust Gas Recirculation (EGR) Valve Control – MID 128 SID 146 |
| ECM SPN 2836 | Battery Potential/Switched Voltage – MID 128 PSID 49 |