All emissions (and mode 6) self tests will be reset when:
The battery is disconnected
Engine codes are cleared with a scan tool
Note: It is not possible to clear engine codes without resetting emissions tests using any scan tool
Resetting Emissions Tests
All emissions (and mode 6) self tests will be reset when:
The battery is disconnected
Engine codes are cleared with a scan tool
Note: It is not possible to clear engine codes without resetting emissions tests using any scan tool