ENGINE (J05E)/TROUBLESHOOTING
2–820
DTC: P1601
EN01H02127030602016138
P1601: Fuel injector adjustment data error
INFORMATION
1.
Technical description
•
The fuel injection rate is controlled by operation of the injector magnetic valve according to the injector valve-open-
ing interval instructions from the engine ECU. In order to correct for injector manufacturing variations, however, a
variation correction value (injector correction value) is measured, and written into the engine ECU, during the injec-
tor manufacturing process.
<Description of malfunction>
•
Faulty injector correction value is detected.
2.
DTC set condition
(1)
DTC detection condition
•
Calibration data (QR codes) are not written.
•
Calibration data are 127 or more.
•
Calibration data are -128 or less.
•
Improper checksum of calibration data
•
EEPROM memory failure
(2)
Judgement criteria
•
Either of these conditions described above remains for 3 seconds or longer.
3.
Reset condition
•
After restoration to normal condition.
4.
Indication, warning or system control regulation when the DTC is set.
•
MIL: ON
•
SVS light: OFF
DST-i
Engine ECU
Connector
QR CODE reader
Computer
New injector
Engine type code
QR CODE
QR CODE
Injector
SHTS021270300736
