ENGINE (J05E)/TROUBLESHOOTING
2–540
DTC: P049D
EN01H02127030602016084
P049D: Position failure (EGR actuator wiping fault)
INFORMATION
1.
Technical description
•
EGR valve is a butterfly type.
•
EGR valve opening is controlled by engine speed and amount of intake air.
•
EGR valve opening is adjusted by engine ECU and CAN communication.
•
EGR valve will not operate when engine coolant temperature is low (
≤
40
C {104
F})
•
Wiping operation from "fully open
fully closed" is conducted as an EGR valve surface cleaning operation when
the key is LOCK.
<Description of malfunction>
•
Failure message is received from EGR controller.
2.
DTC set condition
(1)
DTC detection condition
•
The starter key is "ON".
•
The battery voltage is in the range of 10 to 16 V.
•
The engine is stopped, or the engine speed remains at 500 r/min or more for 5 seconds or more.
(2)
Judgement criteria
•
When wiping (valve opens and closes with key LOCK) results in valve moving 10
beyond the learned value in
the closing direction for more than 1 seconds.
3.
Reset condition
•
After normal status is resumed and accelerator opening is fully closed.
YM5
YM6
(CAN+)
(CAN-)
NF
A
NFB
(CANH)
(CANL)
Y4K
Y4J
(GND)
#XG
#XV
(CANH)
(CANL)
Z90
Y2E
Z90
$4
Y4J
X36
(E)
(+B)
(+B)
X36
(L)
Y2E
NAT
Actuator power
relay
EGR
actuator
VNT
controller
Engine ECU
Resistor
SHTS021270300496
