P0084
DTC P0078 P0084 EVT CONTROL MAGNET RETARDERComponent Description
Exhaust valve timing control magnet retarder controls the shut/open timing of the exhaust valve by ON/OFF pulse duty signals sent from the ECM. The longer pulse width retards valve angle. The shorter pulse width advances valve angle.
CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic
DTC Confirmation Procedure
NOTE: If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select "DATA MONITOR" mode with CONSULT-II.
3. Start engine and let it idle for 5 seconds.
4. If 1st trip DTC is detected, go to "Diagnostic Procedure".
WITH GST
Following the procedure "WITH CONSULT-II".
EC-EVCB1-01:
EC-EVCB2-01:
Wiring Diagram
Diagnostic Procedure (Steps 1 - 2):
Diagnostic Procedure (Steps 3 - 6):
Diagnostic Procedure
Component Inspection
EXHAUST VALVE TIMING CONTROL MAGNET RETARDER
1. Disconnect exhaust valve timing control magnet retarder harness connector.
2. Check resistance between exhaust valve timing control magnet retarder terminals as given.
3. If NG, replace exhaust valve timing control magnet retarder and go to the next step.
4. Perform EC-77, "Exhaust Valve Timing Control Learning (M/T Models)". Testing and Inspection