Check For +B/Gnd Short-Circuit In Can L-Line - Hino Motors HINO 155 series Workshop Manual

2–50
3

Check for +B/GND short-circuit in CAN L-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 4.
ENGINE (J05E)/TROUBLESHOOTING
1.
CAN- TC DSW
KS4 KS2 KPZ
CAN+ SGND CGFR +
KS3 K9H L30 KE4
SHTS021270300029
YES
Use the electrical tester to check the continuity between the follow-
ing terminals.
(1) Between the CAL0 terminal in the DCU (53P) vehicle side
connector and the 16th terminal in the DLC(16P).
(2) Between the CAL0 terminal in the DCU (53P) vehicle side
connector and the 4th terminal in the DLC(16P).
Measurement
conditions connections
DCU vehicle-side
connector –
Diagnostic con-
Starter key: LOCK
nector
CAL0 – 16th
CAL0 – 4th
Refer to "DISCONNECTION INSPECTION
FOR ENGINE CAN_H COMMUNICATION L
LINE (250 k)" and check the CAN bus line.
Tester
Standard values
No Continuity
NO