Exhaust Fluid System Fault Procedure - Transit
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NOTE:
Verify that no DTCs are present and one of the Exhaust Fluid System Fault messages or the DEF System Fault message is present in the instrument cluster message center before carrying out the procedure.
The Exhaust Fluid System Procedure is carried out to clear the SCR system messages and allow the vehicle to exit the forced idle mode for the following messages:
- Engine Idled Soon Exhaust Fault See Manual
- Engine Idled See Manual Exhaust Fluid System Fault
- Access the PCM and monitor the AAT, EGT13, REDUCT_TNK_T and RPM PIDs.
- Verify the AAT PID and the REDUCT_TNK_T PID value is greater than -5°C (23°F). Start the engine. Increase the engine RPM to 2000 to 2500 RPM using the accelerator pedal. With the engine RPM elevated, monitor the EGT13 PID until the value is greater than 155 °C (311 °F) and the message in the message center has cleared.