P0047: Dc Motor Terminal Short Circuit, Dc Motor Short Circuit; Dtc: P0047 - Hino Motors HINO 155 series Workshop Manual

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DTC: P0047

P0047: DC motor terminal short circuit, DC motor short circuit

(Short to Battery) (VNT actuator motor short to BATT)
INFORMATION
POWER
(12V)
GND
CAN-H
CAN-L
Target position
information and
diagnosis result data
communication
terminal
1. Technical description
• The VNT moves the nozzle vane steplessly by the LEA (Linear Electric Actuator) to control the turbo speed and
boost pressure.
• The LEA has a sensor to detect the movement of the actuator, always monitoring the reading and actual value of
the nozzle vane opening.
• Wiping operation is performed while the engine is stopped for the purpose of removing soot and oil coming out from
the range of vane operation and checking the turbo mechanical operating range for abnormality.
<Description of malfunction>
• –
2. DTC set condition
(1) DTC detection condition
• Starter key "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
Item
1. Motor short-circuit
3. Reset condition
• After restoration to normal condition and starter key "LOCK"
4. Indication, warning or system control regulation when the DTC is set.
• MIL: ON
• SVS light: OFF
• Engine output is restricted.
ENGINE (J05E)/TROUBLESHOOTING
Power
supply block
Micro
CAN I/F
computer
block
EEPROM
When LO-side current of at least 20.7 A is detected 3 times.
LEA
Moter driver I/F block
High side
Low side FET
Over current
protection block
P/S (POWER)
P/S (U, V, and W)
Position sensor
P/S (U+, V+, and W+)
I/F block
P/S (GND)
Details (Reference)
EN01H02127030602016029
DC Brushless
motor
MOTOR (U)
MOTOR (V)
MOTOR (W)
Position sensor
(Hall IC)
SHTS021270300121