The PACCAR MX P1212 page of the 2013 PACCAR MX Diagnostic Service Manual is the manufacturer reference for diagnostic trouble code P1212, described in the manual as “Injector solenoid valve cylinder 3 – Voltage too high or short circuit to supply on ECU D420 pin A5”. It is a 5-page PDF section covering injector solenoid valve diagnostics on EPA2013 PACCAR MX engines, and it keeps the same layout as every other code page in that manual.
Document details and coverage
| Brand | PACCAR |
| Model coverage | PACCAR MX engines, EPA2013 emissions |
| System group | DTCs / MX Engines (EPA2013) |
| Source publication | 2013 PACCAR MX Diagnostic Service Manual |
| Fault code | P1212 |
| Subject | Injector solenoid valve |
| Pages | 5 |
| File size | 0.4 MB |
| Format | |
| Language | English |
What PACCAR MX P1212 means
The manual files P1212 as a 1 trip MIL code with 3 drive cycle recovery, readiness group None and freeze frame type Comprehensive. The diagnostic runs when the power stage hardware is active. The code sets when high side voltage on the injector before injection is greater than 80.00% of the threshold value compared with battery voltage, or current through the sense resistor on driver bank A is greater than 25.00% of the threshold value, and it changes to inactive immediately after the diagnostic runs and passes.
Possible causes and technical data
The possible causes field on this page reads “no possible causes available”, so the printed troubleshooting order is the only guidance the manual gives.
Technical data lists the component checks made on connector B460 with the ignition keyed off, with ± 0.67 Ω at 20°C [68°F] and a maximum of 0.94 Ω at 120°C [248°F] quoted for the injector solenoid valves. The page then runs 4 numbered troubleshooting steps, each with its own step ID, starting from a visual inspection of connectors and harness with the ignition off. The manual warns against back probing, notes that disconnecting the EAS connectors during troubleshooting produces multiple errors, and reminds the technician to exit the fault code menu in DAVIE and rerun the test before judging whether anything changed.
Who needs this PACCAR MX P1212 manual page
Heavy-duty technicians, fleet shops and independent workshops diagnosing Kenworth and Peterbilt trucks with EPA2013 PACCAR MX engines use this page to confirm what the ECU actually measured before parts are ordered. For engine literature, dealer locations and support contacts beyond this single code, start at the PACCAR corporate website.
The complete PACCAR MX P1212 extract from the 2013 PACCAR MX Diagnostic Service Manual is filed in the DiagTechPro manuals library, where the 5-page PDF can be viewed or downloaded with a free account.
Related manuals library
Sản phẩm liên quan cho hãng này
Cùng brand theo taxonomy hiện có trong catalog WooCommerce.
