Removal and installation
Diagnosis and repair workflowP0078, P0084 EVT control magnet retarder
Description
Exhaust valve timing control magnet retarder (1) 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 timing.
The shorter pulse width advances valve timing.
DTC Logic
DTC DETECTION LOGIC
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Both side headlamps (LO) are not turned on
Description
The headlamps (both sides) do not turn ON in any lighting switch setting.
Diagnosis Procedure
1.CHECK COMBINATION SWITCH (LIGHTING AND TURN SIGNAL SWITCH)
Check the combination switch (lighting and turn signal switch
2.CHECK HEADLAMP (LO) REQUEST SIGNAL INPUT
CONSULT DATA MONITOR
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Trunk open function
TRUNK LID OPENER SWITCH
TRUNK LID OPENER SWITCH : System Diagram
TRUNK LID OPENER SWITCH : System Description
TRUNK LID OPENER OPERATION
When trunk lid opener switch is ON, BCM opens trunk release solenoid.
BCM can open trunk lid opener actuator when
vehicle speed is less than 5 ...