This is the official 2013 PACCAR MX back pressure codes diagnostic service manual covering fault code P1025 and BPV actuator malfunctions on EPA 2013 engines. Published by PACCAR, it provides mechanics and workshop technicians with complete technical documentation, electrical schematics, and step-by-step troubleshooting procedures for back pressure valve sensor faults.
Document details and specifications — PACCAR MX back
| Brand | PACCAR |
| Model coverage | MX Engines (EPA 2013) |
| System/Group | DTCs / MX Engines |
| Year/Revision | 2013 |
| Pages | 11 |
| File size | 0.7 MB |
| Format | |
| Language | English |
Table of contents
- Fault code P1025 — BPV actuator position malfunction on sensor
- Description of BPV actuator components and main tasks
- BPV actuator control and E-CAN communication
- Unpowered and fail-safe position specifications
- Location of BPV valve component
- Electrical diagrams and wiring connector pinouts
- Technical data and component checks
- Wiring check procedures for BPV valve L096
- Possible causes and additional diagnostic information
- Step-by-step troubleshooting tree
- Key cycle verification and visual inspection procedures
- BPV valve mechanism movement checks and blockage detection
- DTC reset procedures and repair verification drive cycle
Applies to these models
This PACCAR MX back pressure codes manual applies to all 2013 EPA-compliant PACCAR MX engines equipped with BPV actuator assembly L096 and PCI ECU control systems. It covers diagnostic procedures for P1025 faults on trucks using the E-CAN communication protocol between the BPV actuator ECU and the main engine control unit. For official PACCAR engine support and additional resources, visit PACCAR official website.
Who needs this MX back pressure codes manual
This diagnostic manual is essential for certified diesel mechanics, engine diagnosticians, and workshop owners servicing PACCAR MX engines. Technicians troubleshooting MX back pressure codes P1025, checking BPV actuator sensors, or performing exhaust system diagnostics require this technical reference to access wiring diagrams, electrical specifications, and approved repair procedures.
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