P0563: Battery Voltage - Out Of Range (Out Of Range High) - Hino Motors HINO 155 series Workshop Manual

P0563: Battery voltage - out of range (Out of range high)

INFORMATION
Engine ECU
1. Technical description
• –
<Description of malfunction>
• Excessively high voltage has been detected in the ECU power supply.
2. DTC set condition
(1) DTC detection condition
• Engine speed of 0 r/min or more.
(2) Judgement criteria
• Engine ECU power supply voltage is 17 V or more for 2 seconds or more.
3. Reset condition
• After restoration to normal condition
4. Indication, warning or system control regulation when the DTC is set.
• MIL: ON
• SVS light: ON
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.
8. Estimated failure factors
• Fusible Link, FUSE: Fusing, irregular contact, partial engagement
• Alternator failure (abnormal voltage or requires adjustment)
• ECU: Malfunction
ENGINE (J05E)/TROUBLESHOOTING
JFZ 3.2 (Inrush : 6.87A)
(+BM)
3.2 (Inrush : 6.87A)
XAU
(+B2)
3.2 (Inrush : 6.87A)
X0D
(+B1)
3.2 (Inrush : 6.87A)
X21
(+B)
2–609
To EDU relay
SHTS021270300559