DPS visual inspection
IG KEY "OFF", ENGINE "OFF".
Disconnect DPS connector.
Check DPS terminals for corrosion and contamination.
Check (1)connecting condition of DPS and pressure sensing hose, (2)exhaust gas pressure leakate, (3)miss connection of pressure sensing hose (reverse connection) is detected.
Is DPS related problem detected?
YES
If needed, replace DPS or pressure sensing hose and go to "Verification of Vehicle Repair".
NO
Go to "2. Monitor DPS signal waveform" as follows.
Monitor DPS signal waveform
IG KEY "ON", ENGINE "OFF"
Connect DPS connector.
Connect oscilloscope to DPS connector terminal 2.
After warming engine up, monitor the waveform at idle and during acceleration.
Specification : Refer to "Signal Waveform & Data" of "General Information".
Is DPS signal waveform is similar to the waveform of "Signal Waveform & Data"?
YES
Go to "Verification of Vehicle Repair".
NO
Replace DPS and go to "Verification of Vehicle Repair".