ABNORMAL POWER SUPPLY (OVERVOLTAGE) [DTC CODE: U3B03, MALFUNCTION CODE: 8-2]

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ABS light indication	8-2
Malfunction code	8-2
Description of malfunction	High voltage of ABS valve power supply for 5 seconds or longer (32 V or more for 5 seconds)
Vehicle status	Not actuated ABS
Possible cause	Overcharged battery (32 V or more) Affected by other added or modified devices
ECU terminals subject to inspect	The 8th terminal of 15 pin connector

1. Inspection item

Detail

Inspect the battery and alternator.

DTC Clear

Detail

Confirm the DTC U3B03 is inactive

Start the engine and let it idling condition.
Verify the DTC U3B03 is inactive.

DTC Clear

Clear the DTC with Hino DX
Confirm the same DTC is not reoccurred

U3B03 is reoccur: Return to first process
Other DTC appear: Refer to concerned Trouble shooting

Complete