ENGINE (J05E)/TROUBLESHOOTING
2–644
DTC: P062F
EN01H02127030602016105
P062F: Controller store data error (VNT actuator EEPROM error)
INFORMATION
1.
Technical description
•
The VNT actuator steplessly operates the nozzle via the LEA (Linear Electric Actuator) and controls turbine speed
and boost pressure.
•
The VNT actuator (LEA) has a position sensor and constantly monitors the target opening and the actual opening.
•
Wiping operation is carried out when the engine is stopped and the soot, oil, and other impurities accumulated in
the vane working range are removed. Also, the turbocharger mechanical working range is checked for trouble.
<Description of malfunction>
•
–
2.
DTC set condition
(1)
DTC detection condition
•
Starter key "ON".
•
Battery voltage is in the range of 10 V to 16V.
•
The engine is stopped, or the engine speed remains at 500 r/min or more for 5 seconds or more.
(2)
Judgement criteria
3.
Reset condition
•
After normal operation is restored and the starter key is turned "LOCK".
4.
Indication, warning or system control regulation when the DTC is set.
•
MIL: ON
•
SVS light: OFF
•
Engine output is restricted.
Item
Details (Reference)
1. EEPROM failure
Data saved in the 3 EEPROM sectors do not match.
POWER
(12V)
Power
supply block
CAN I/F
block
EEPROM
Micro
computer
LEA
Moter driver I/F block
High side
Low side FET
GND
CAN-H
CAN-L
Target position
information and
diagnosis result data
communication
terminal
MOTOR (U)
P/S (POWER)
DC Brushless
motor
Position sensor
(Hall IC)
P/S (GND)
P/S (U, V, and W)
P/S (U+, V+, and W+)
Over current
protection block
Position sensor
I/F block
MOTOR (V)
MOTOR (W)
SHTS021270300586