IG key OFF.
Connect Exhaust Presss Control Valve actuator.
Place oscilloscope probe at motor(+) and motor (-)
Check signal waveform at idle and acceleration over 3000RPM.Reference
Fig.1) Exhaust Pressure Control Valve actuator motor(-) is controlled at idle or deceleration
Fig.2) Exhaust Pressure Control Valve actuator motor(+) is controlled at acceleration
Is the measured value within specification?
![]() | ▶ Go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ Check Exhaust Pressure Control Valve actuator, and go to "Verification of Vehicle Repair" procedure. |
In case of replacing Exhaust Pressure Control Valve actuator , perform the "COMPONENT CHANGE ROUTINE" procedure with scan tool. If the "COMPONENT CHANGE ROUTINE" procedure has not completed until automatic learning completed, it may cause vehicle performance and exhaust gas problem.