# P0420 on the 2018 Land Rover Range Rover

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P0420

- [10148464](https://open.wenmarpro.com/bulletins/10148464), 2018-11-13: Issue: A Technician will find the following Diagnostic Trouble Code \(DTC\) relevant to catalyst system efficiency, P0420\-00 stored in the Powertrain Control Module \(PCM\). The Malfunction Indicator Lamp \(MIL\) could also be illuminated.
- [10146145](https://open.wenmarpro.com/bulletins/10146145), 2018-10-29: Issue: A Technician will find the following Diagnostic Trouble Code \(DTC\) relevant to catalyst system efficiency, P0420\-00 stored in the Powertrain Control Module \(PCM\). The Malfunction Indicator Lamp \(MIL\) could also be illuminated. Affected vehicle vin ranges as follows ? Range Rover Sport \(LW\) AJ200P PHEV ? 146054 onwards. Range Rover \(LG\) AJ200P PHEV ? 343646 onwards
- [10145830](https://open.wenmarpro.com/bulletins/10145830), 2018-10-15: Issue: A Technician will find the following Diagnostic Trouble Code \(DTC\) relevant to catalyst system efficiency, P0420\-00 stored in the Powertrain Control Module \(PCM\). The Malfunction Indicator Lamp \(MIL\) could also be illuminated.
- [10145624](https://open.wenmarpro.com/bulletins/10145624), 2018-10-15: Issue: A Technician will find the following Diagnostic Trouble Code \(DTC\) relevant to catalyst system efficiency, P0420\-00 stored in the Powertrain Control Module \(PCM\). The Malfunction Indicator Lamp \(MIL\) could also be illuminated. Affected vehicle vin ranges as follows ? Range Rover Sport \(LW\) AJ200P PHEV ? 146054 onwards. Range Rover \(LG\) AJ200P PHEV ? 343646 onwards
- [10144528](https://open.wenmarpro.com/bulletins/10144528), 2018-09-17: Issue: A Technician will find the following Diagnostic Trouble Code \(DTC\) relevant to catalyst system efficiency, P0420\-00 stored in the Powertrain Control Module \(PCM\). The Malfunction Indicator Lamp \(MIL\) could also be illuminated.