2013 PACCAR MX-13 – P0073 Ambient temperature – Voltage too high or short circuit to supply on ECU D420 pin C78

Fault code information

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

Description of component(s)

Refer to the OEM service manual for more information.

Location of component(s)

Refer to the OEM service manual for more information.

Diagnostic condition

When sensor output voltage is too high (above 4.89 V)

Set condition of fault code

The PCI detects the sensor output voltage is too high (above 4.99 V) or too low (below 3.99 V).

Reset condition of fault code

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

Electrical diagram(s)

Technical data

Possible causes

* Faulty wiring
* Faulty connector
* Faulty sensor

Additional information

No additional information available

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