AIR GAP AND SLIP OF THE WHEEL SENSOR (LEFT, REARWARD) [DTC CODE: P0301, MALFUNCTION CODE: 3-4 (1)]

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ABS light indication	3-4
Malfunction code	3-4 (1)
Description of malfunction	Improper air gap of the wheel sensor (left, rearward) Extremely low wheel sensor signal voltage compared to standard voltage
Vehicle status	Not actuated left rear wheel ABS
Possible cause	Malfunction of the sensor ring, improper installation of the sensor ring, untucked wheel sensor Abnormality in clamping bushing Clogged tooth space of the sensor ring
ECU terminals subject to inspect	The 8th and 9th terminals of 18 pin connector

1. Inspection item

Detail

Tuck the wheel sensor until it contacts the sensor ring.

Do not use a hammer to tuck the wheel sensor.
To avoid damage, do not pry with a screwdriver or other similar tools.

If the same code is indicated again after a while of inspection, inspect the clamping bushing for abnormalities and the sensor ring for runout. Make replacement if some abnormalities are found.

If sensor ring tooth spaces are clogged, use a brush to clean them.

DTC Clear

Detail

Confirm the DTC P0301 is inactive

Start the engine and let it idling condition.
Verify the DTC P0301 is inactive.

DTC Clear

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

P0301 is reoccur: Return to first process
Other DTC appear: Refer to concerned Trouble shooting

Complete