Dtc: P2100 Dc Motor For Intake Throttle Valve - Circuit (Open Circuit (Circuit Low)) - Hino 238 Workshop Manual

DTC: P2100
P2100: DC motor for intake throttle valve - circuit (Open circuit (circuit low))
INFORMATION
Common rail
pressure sensor
Diesel throttle
(intake throttle
valve)
1. Technical description
• The diesel throttle (intake throttle) is of the butterfly type by DC motor driving.
<Description of malfunction>
• Possible diesel throttle unit failure or harness GND short-circuit/disconnection
2. DTC set condition
(1) DTC detection condition
• Battery voltage is in the range of 8 V to 16 V.
• There must be no disconnection in the harness connecting to the diesel throttle (intake throttle).
(2) Judgement criteria
• The diesel throttle (intake throttle) drive current has continued to be below 0.3 A for six seconds.
3. Reset condition
• After normal operation is restored and engine is restarted after engine stall.
4. Indication, warning or system control regulation when the DTC is set.
• MIL: ON
• Diag lamp: OFF
5. Symptoms on the vehicle when the DTC is set
<Symptoms on the vehicle due to backup control (fail safe function)>
–
•
<Symptoms on the vehicle due to malfunction>
–
•
6. Pre-inspection work
• Check that the battery voltage is in the normal range.
7. After-inspection work
• Clear all past DTCs.
• Check that no DTC is stored after test drive.
ENGINE CONTROL SYSTEM (J08E)
GND1
SIG1
VCC1
GND2
SIG2
LLJ
VCC2
(PCR+)
LD4
(VCC)
LD6
(SIG1)
LD9
(SIG2)
LD5
(GND)
LD7
(MOT+)
LD8
(MOT-)
EN01H16F01030F03001123
KRQ
(AVC2)
KRE
(DTS1)
LCC
(DTS2)
Engine
KRB
(AGD3)
ECU
LBZ
(MOT+)
LC0
(MOT-)
SAPH16F010300740
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