Diagnostic Trouble Code Chart

Total OBD & ECU Auto Diagnostics

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DTC B1625/22 is output.

A

DTC B1620/21 is output.

B

DTC B1620/21 and B1625/22 are not output.

C

2007 RESTRAINTS Supplemental Restraint System - Sequoia

Airbags Sensor And Ecu

Codes other than DTC B1620/21 and B1625/22 may be output at this time, but they are not related to this check.

A: REPLACE CENTER AIRBAG SENSOR ASSEMBLY B: REPLACE SIDE AIRBAG SENSOR LH C: USE SIMULATION METHOD TO CHECK DTC B1630/23 REAR AIRBAG SENSOR RH CIRCUIT MALFUNCTION DESCRIPTION

The rear airbag sensor RH consists of the safing sensor the diagnostic circuit, the lateral deceleration sensor, etc.

If the center airbag sensor assembly receives signals from the lateral deceleration sensor, it determines whether or not the SRS should be activated.

DTC B1630/23 is recorded when a malfunction is detected in the rear airbag sensor RH circuit.

DIAGNOSTIC TROUBLE CODE CHART

DTC No.

DTC Detection Condition

Trouble Area

B1630/23

• The center airbag sensor assembly receives a short circuit signal, an open circuit signal, a short circuit to ground signal or a short circuit to B+ signal in the rear airbag sensor RH circuit for 2 seconds.

• Rear airbag sensor RH malfunction

• Center airbag sensor assembly malfunction

• Rear airbag sensor RH

• Center airbag sensor assembly

• Floor wire

WIRING DIAGRAM

WIRING DIAGRAM

2007 RESTRAINTS Supplemental Restraint System - Sequoia

Srs Airbag Diagram
Fig. 92: Rear Airbag Sensor RH Circuit Malfunction - Wiring Diagram Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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