Ok Repair Or Replace Floor Wire Dtc B Occupant Classification Sensor Power Supply Circuit Malfunction Description

The occupant classification sensor power supply circuit consists of the occupant classification ECU and the occupant classification sensors.

DTC B1793 is recorded when a malfunction is detected in the occupant classification sensor power supply circuit.

DIAGNOSTIC TROUBLE CODE CHART

DTC No.

DTC Detecting Condition

Trouble Area

B1793

• The occupant classification ECU receives a line short circuit signal, an open circuit signal, a short circuit to ground signal or a short circuit to B+ signal in the.

• Occupant classification ECU malfunction

• Front seat assembly RH (Occupant classification sensors)

• Occupant classification ECU

• Seat wire No. 1

HINT:

HINT:

When DTC B1650/32 is detected as a result of troubleshooting for the supplemental restraint system, check the DTCs stored in the occupant classification ECU. When DTC B1793 is output, perform troubleshooting for the DTC.

WIRING DIAGRAM

2007 RESTRAINTS Supplemental Restraint System - Sequoia

Classification Power Supply
Fig. 186: Occupant Classification Sensor Power Supply Circuit Malfunction - Wiring Diagram Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

HINT:

• If troubleshooting (wire harness inspection) is difficult to perform, remove the passenger seat installation bolts to see the under surface of seat cushion.

• In the above case, hold the seat so that it does not fall down. Holding the seat for a long period of time may cause a problem, such as seat rail deformation. Hold the seat only as necessary.

Was this article helpful?

0 0
Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

Get My Free Ebook


Post a comment