PACCAR MX fault code sheets in the 2013 PACCAR MX Diagnostic Service Manual all follow one fixed template, and this single-page extract from page 124 shows that template in full. The sheet reproduced here is the P0112 entry, described in the manual as “Boost temperature – Voltage too low or short circuit to ground on ECU D420 pin A43”. Because the whole manual is built the same way, one sheet is enough to see how the book is meant to be worked through at the truck.
How a PACCAR MX fault code entry is laid out
The code number and the fault code description sit at the top, and the fault code information line on this page reads “Please Contact the Engine Support Center”.
- Description of component(s) and location of component(s)
- Diagnostic condition
- Set condition of fault code and reset condition of fault code
- Electrical diagram(s)
- Technical data
- Possible causes and additional information
- Diagnostic Step-by-Step
- Verification Drive Cycle
- Back to Index navigation link
Document details at a glance
| Brand | PACCAR |
| Engine family | PACCAR MX, EPA 2013 |
| Source manual | 2013 PACCAR MX Diagnostic Service Manual |
| Manual page | 124 |
| Code shown on the sheet | P0112, boost temperature circuit |
| PDF pages | 1 |
| File size | 0.3 MB |
| Format / language | PDF, English |
Who needs this PACCAR MX fault code sheet
Technicians who already have a code number in hand and want to see the diagnostic structure before pulling the whole service manual will find this useful. It is also a quick reference for what a boost temperature circuit entry names, down to the ECU and pin named in the description. Shop owners quoting a job can use it to judge how much reading the full procedure involves before the truck is booked in. Engine documentation is published by the manufacturer through the PACCAR corporate site.
The full page and the rest of the EPA 2013 engine set are filed in the DiagTechPro manuals library, where a free account is required to download. Use the related sheets below to move through the same MX fault code group.
Related manuals library
