INSPECTION PROCEDURE 1. INSPECT FRONT SHOCK ABSORBER ASSEMBLY LH  (a) Compress and extend the shock absorber rod 4 times or more. Check that there is no abnormal resistance or unusual sound during the operation.
NOTICE: When disposing of the shock absorber, see DISPOSAL (see page
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Toyota Tundra Service Manual > Occupant Classification System: Front Occupant Classification Sensor LH Circuit Malfunction (B1780)
DESCRIPTION The front occupant detection sensor LH circuit consists of the occupant classification ECU and the front occupant detection sensor LH. DTC B1780 is set when a malfunction is detected in the front occupant detection sensor LH circuit. DTC Code DTC Detection Condition Trouble Area B1780 On ...
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