Hino Motors HINO 155 series Workshop Manual page 114

2–78
2
Check for +B/GND short-circuit in CAN H-line
+B2 GND4 GND1
LEP LEW LET
+24V
K9G
+B3 GND5 GND2
ISOK
LEQ LEX LEU
K9E
+B4 +B1 GND3
LER LEN LEV
CAH1
LF5
CAL1
LF6
TE1B
LF2
TE1A CAH0
LF1 LEY
TE2B CAL0
LF4 LEZ
TE2A
LF3
ISGW
LES
Do the measurements meet the standard value?
Go to step 3.
ENGINE (J05E)/TROUBLESHOOTING
1.
CAN- TC DSW
2.
KS4 KS2 KPZ
CAN+ SGND CGFR +
KS3 K9H L30 KE4
• DCU(53P), engine ECU, AT ECU, ABS ECU, vehicle control ECU,
HV PCU
3.
SHTS021270300061
YES
Set the starter key to the "LOCK" position.
Disconnect the following sensors and controllers connected to the
Engine_control/Diagnosis_CAN line.
Use the electrical tester to check the continuity between the CAH1
terminal in the DCU vehicle-side connector (53P) and the 4th ter-
minal and 16th terminal in the diagnostic connector (16P).
Measurement
conditions connections
DCU vehicle-side
connector – Diag-
Starter key: LOCK nostic connector
CAH1 – 4th
CAH1 – 16th
Refer to "DISCONNECTION INSPECTION
FOR ENGINE CAN_H COMMUNICATION L
LINE (500 k)" and check the CAN bus line.
Tester
Standard values
No Continuity
NO