4766
John Deere 4766: DOC Outlet Temp Fault
Issue description
The fault code indicates an issue related to the temperature at the DOC (Diesel Oxidation Catalyst) outlet. This may suggest abnormal operating conditions or a failure in the system that affects the temperature reading.
Check the cause
The temperature sensor at the DOC outlet
Wiring and connections to the DOC outlet temperature sensor
The component identified by this code
Repair steps
Inspect
Inspect the temperature sensor at the DOC outlet for damage or contamination.
Test
Test the wiring and connections to the DOC outlet temperature sensor for continuity and proper voltage.
Verify
Verify the functionality of the component identified by this code using the service manual.
Parts you might need
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