PACCAR MX P0692 is the diagnostic trouble code documented on this 1 page extract from the 2013 PACCAR MX Diagnostic Service Manual, published by PACCAR for EPA2013 MX engines. PACCAR prints the fault as “Electronic controlled fan – Voltage too high or short circuit to supply on ECU D420 pin C74”, in the manual’s standard fault code layout.
Document details for PACCAR MX P0692
| 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 | P0692 — Electronic controlled fan – Voltage too high or short circuit to supply on ECU D420 pin C74 |
| Pages | 1 |
| File size | 0.4 MB |
| Format | |
| Language | English |
Fault code summary and monitor data
The manual lists 3 drive cycle recovery, no readiness group and a comprehensive freeze frame type. No trip MIL count is printed for this entry.
- 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
The page is a referral entry, not a full diagnostic tree. Component description, location, diagnostic condition, set and reset conditions, electrical diagrams, technical data, possible causes and additional information all appear as headings, and every one of them carries the instruction to contact the Engine Support Center.
Set and reset conditions for PACCAR MX P0692
The single procedural line tells the technician to refer to the chassis wiring information, which is consistent with a fan drive circuit that leaves ECU D420 pin C74 and runs through the vehicle harness. The verification drive cycle is listed as not applicable. In practice the page is used to confirm the code number and pin, then hand the electrical work over to the chassis wiring documentation and the Engine Support Center.
Applies to EPA2013 MX engines
The PACCAR MX P0692 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 P0692 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 P0692 is in the DiagTechPro manuals library; a free account is required to download it.
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