PACCAR MX P062D is the diagnostic trouble code documented on this 3 pages extract from the 2013 PACCAR MX Diagnostic Service Manual, published by PACCAR for EPA2013 MX engines. PACCAR prints the fault as “Internal ECU injector power generation – Voltage too low”, in the manual’s standard fault code layout.
Document details for PACCAR MX P062D
| Brand | PACCAR |
|---|---|
| Model coverage | PACCAR MX engines, EPA2013 emissions level |
| System / group | DTCs / MX Engines (EPA2013) |
| Source publication | 2013 PACCAR MX Diagnostic Service Manual |
| Fault code | P062D — Internal ECU injector power generation – Voltage too low |
| Pages | 3 |
| File size | 0.3 MB |
| Format | |
| Language | English |
Fault code summary and monitor data
The manual lists 1 trip MIL with 3 drive cycle recovery, no readiness group and a comprehensive freeze frame type. The diagnostic runs continuously when the ignition is on.
- Code number
- Fault code description
- Fault code information
- Description of component(s)
- Set condition of fault code
- Reset condition of fault code
- Possible causes
- Diagnostic Step-by-Step
- Verification Drive Cycle
Component and system background
Because this is an internal PCI issue, the manual prints no component description, no location, no electrical diagram and no technical data. It does record two side effects: numerous OBD monitors will not run any more, and humidity calculation and correction is switched off.
Set and reset conditions for PACCAR MX P062D
The code is set when the internal ECU injector power supply voltage is too low, and it changes to inactive once the fault is no longer detected. The listed action is to clear the fault with DAVIE and replace the ECU if the code returns after ignition on. The step-by-step section repeats the shop rules for this manual: use a breakout harness rather than back probing, and keep the ignition OFF when connecting or disconnecting electrical components.
Applies to EPA2013 MX engines
The PACCAR MX P062D entry sits in the DTCs / MX Engines (EPA2013) section, so it applies to PACCAR MX engines built to that emissions level. Manufacturer product information is published on the PACCAR corporate website.
Who needs the PACCAR MX P062D fault code page
Technicians reading a live code, foremen writing an estimate and fleet managers deciding whether a truck stays in service all need the manufacturer wording rather than a generic code list.
The full PDF for MX P062D is in the DiagTechPro manuals library; a free account is required to download it.
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