2013 PACCAR MX-13 – P0408 EGR pressure difference – Voltage too high or short circuit to supply on ECU D420 pin C80

Fault code information

1 trip MIL
3 drive cycle recovery
Readiness group – None
Freeze frame type – Comprehensive

Description of component(s)

Location of component(s)

Diagnostic condition

Diagnostic Condition Not Available

Set condition of fault code

The PCI detects sensor output voltage is too high (above 4.81 V).

Reset condition of fault code

This fault code will immediately change to inactive after the diagnostic runs and passes.

Electrical diagram(s)

Technical data

Possible causes

1. Faulty sensor
2. Short circuit to supply on pin C80 of the ECU
3. Short circuit between pin C80 and pin C14 of the ECU
4. Faulty connector

Additional information

No Additional Information Available

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