The exhaust differential pressure sensor is installed to the cylinder head cover bracket near the DPD. The exhaust differential pressure sensor changes the signal voltage in accordance with changes in the exhaust gas pressure difference between the front and rear of the DPD filter. The ECM performs exhaust differential pressure sensor learning based on the command from the scan tool. Exhaust differential pressure sensor learning is performed when related parts have been replaced. If the ECM detects that the learned differential pressure is not within the predetermined range, the DTC is set. If it is detected that the exhaust differential pressure sensor learning is not completed, this DTC is also set.
Condition for running the DTC
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC P06A3 Sensor Reference Voltage 4 Circuit".
Condition for setting the DTC
Any of the following are met:
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".