P203F00
Service Bulletin Details
Public Details for: P203F00
Repair instructions to address fault codes P203F00 reductant level low
- 2020 - 2019 - 2018 - 2017 - 2016 - 2015 - 2014 - 2013 -
Models from 2019
2019 PREVOST H3-41 |
2019 PREVOST H3-45 |
2019 PREVOST H3-45 VIP |
2019 PREVOST X3-45 |
2019 PREVOST X3-45 COMMUTER |
2019 PREVOST X3-45 VIP |
Models from 2018
2018 PREVOST H3-41 |
2018 PREVOST H3-45 |
2018 PREVOST H3-45 VIP |
2018 PREVOST X3-45 |
2018 PREVOST X3-45 COMMUTER |
2018 PREVOST X3-45 VIP |
Models from 2017
2017 PREVOST H3-41 |
2017 PREVOST H3-45 |
2017 PREVOST H3-45 VIP |
2017 PREVOST X3-45 |
2017 PREVOST X3-45 VIP |
Models from 2016
2016 PREVOST H3-41 |
2016 PREVOST H3-45 |
2016 PREVOST H3-45 VIP |
2016 PREVOST X3-45 |
2016 PREVOST X3-45 VIP |
Models from 2015
2015 PREVOST H3-41 |
2015 PREVOST H3-45 |
2015 PREVOST H3-45 VIP |
2015 PREVOST X3-45 |
2015 PREVOST X3-45 VIP |
Models from 2014
2014 PREVOST H3-41 |
2014 PREVOST H3-45 |
2014 PREVOST H3-45 VIP |
2014 PREVOST X3-45 |
2014 PREVOST X3-45 VIP |
Models from 2013
2013 PREVOST H3-41 |
2013 PREVOST H3-45 |
2013 PREVOST H3-45 VIP |
2013 PREVOST X3-45 |
2013 PREVOST X3-45 VIP |
DTC (Code) Codigo: Bulletin: P203F-00 RD18-002 Date Fecha: June 19, 2018 Description: Reductant Level Low Application: US13 – US20 Emissions General Information These repair instructions are intended to address the following fault(s): DTC P203F-00 Description Reductant Level Low Possible Cause • • • Empty tank Wiring harness Reductant Level Sensor "A" Possible (Observable) Symptoms No aftertreatment diesel exhaust fluid (DEF) dosage Required Parts Part Number Description Quantity 22997058 DEF Tank Level Sensor Replacement 1 Repair Instructions Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement Removal 1. Secure the vehicle for service by parking it on a flat level surface, applying the parking brake, chocking the rear wheels, and placing the transmission in neutral or park. 2. Disable battery power. 3. Move the engine control switch on the rear control panel to the "OFF" position. 4. Close all the coolant valves to the bus interior. Connect the coolant extractor and drain the engine coolant. Special tools: 85112740 5. Place a suitable container under the DEF tank to catch any spilled DEF and coolant during the removal procedure. 6. Remove the drain plug from the DEF tank and drain fluid in the DEF tank into the container. When all the fluid has drained from the DEF tank, replace the drain plug and tighten. Discard the used DEF according to local © 2016 Information is subject to change without notice. Page 1 of 4 DTC (Code) Codigo: P203F-00 Bulletin: RD18-002 Date Fecha: June 19, 2018 regulations. Do not reuse DEF. It will damage the aftertreatment system. Prevost H model shown 1. DEF Tank Drain Plug 7. Disconnect the wiring harness from the DEF tank level sensor. Note: Cover the wiring harness connectors with a plastic bag to protect them from any spilled DEF which is highly corrosive to electrical contacts. 8. If equipped, disconnect the electrical harness from the DEF quality sensor module. Remove the fasteners from the module. Note: Cover the wiring harness connectors with a plastic bag to protect them from any spilled DEF which is highly corrosive to electrical contacts. 1. DEF Quality Sensor Module Electrical Connector 9. Disconnect the DEF lines from the DEF tank level sensor fittings. 1. DEF Lines © 2016 Information is subject to change without notice. Page 2 of 4 DTC (Code) Codigo: P203F-00 Bulletin: RD18-002 Date Fecha: June 19, 2018 10. Disconnect the two coolant lines from the fittings on the DEF tank level sensor. 1. Coolant Line 2. Coolant Line 11. Remove the fasteners securing the DEF tank to the vehicle chassis and carefully remove the tank from the vehicle compartment. Note: On Prevost X models, the DEF pump must be moved to allow tank removal. 1. Mounting Fasteners 12. Loosen the clamp securing the DEF level sensor in the DEF tank and remove the level sensor and quality sensor module, if equipped. Use care when handling the sensor to avoid damaging the sensor. 1. DEF Level Sensor © 2016 Information is subject to change without notice. Page 3 of 4 DTC (Code) Codigo: Bulletin: P203F-00 RD18-002 Date Fecha: June 19, 2018 Installation 1. Check DEF tank for debris. Flush tank if necessary. 2. Position the level sensor in the DEF tank and tighten the clamp to secure it in place. Use care when handling the sensor to avoid damaging the sensor. 3. Position the DEF tank in the vehicle compartment and use the fasteners to secure it in place on the chassis. Tighten the fasteners to specification; refer to Function Group 20, Specifications. Note: On Prevost X models, the DEF pump must be reinstalled. 4. Remove the protective plastic bag from the wiring harness connector and connect the wiring harness lead to the level sensor connector. 5. If equipped, position the DEF quality sensor module and install fasteners. Remove the protective plastic bag from the wiring harness connector and connect electrical harness to the DEF quality sensor module electrical connector. 6. Attach the two coolant lines to the fittings on the DEF tank level sensor. 7. Fill the DEF tank with new DEF fluid. 8. Reinstall the engine coolant using the coolant extractor. Open all coolant valves to the bus interior. Special tools: 85112740 9. Turn the battery switch to "ON". 10. Move the engine control switch on the rear control panel to the "ON" position. 11. Use Tech Tool to check and clear any diagnostic trouble codes (DTC) and perform “Learned Data Reset”. 12. Start the engine and check for leaks and proper operation. Replenish coolant as needed using recommended coolant. 13. Install previously removed panels. Additional Resources These repairs are the most likely fix for the identified fault, if this does not fix the issue, Tech Tool will need to be used for more detailed diagnostics. If filing a warranty claim, please include the ASIST case number. Labor Code 2589-03-02-05 1.8 – 2.1 (Depending on Model) Causal Part 22997058 © 2016 Information is subject to change without notice. Page 4 of 4