Toyota 4Runner: Rear Floor Airbag Sensor Malfunction (B1675/82)

Toyota 4Runner Service Manual / Vehicle Interior / Supplemental Restraint Systems / Airbag System / Rear Floor Airbag Sensor Malfunction (B1675/82)

DESCRIPTION

The rear floor side airbag sensor consists of the diagnostic circuit, rear floor deceleration sensor, etc.

If the center airbag sensor receives signals from the rear floor deceleration sensor, it determines whether the SRS should be activated.

DTC B1675/82 is stored when a malfunction is detected in the rear floor side airbag sensor circuit.

DTC Code	DTC Detection Condition	Trouble Area
B1675/82	Either condition is met: A rear floor side airbag sensor malfunction. A center airbag sensor malfunction.	Rear floor side airbag sensor Center airbag sensor assembly

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

When disconnecting the cable from the negative (-) battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected (See page ).

PROCEDURE

1.	CHECK REAR FLOOR SIDE AIRBAG SENSOR

(a) Turn the ignition switch off.

(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.

(d) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

(e) Turn the ignition switch to ON, and wait for at least 60 seconds.

(f) Clear the DTCs stored in memory (See page
).

(g) Turn the ignition switch off.

(h) Turn the ignition switch to ON, and wait for at least 60 seconds.

(i) Check for DTCs (See page ).

OK:

DTC B1675 is not output.

HINT:

Codes other than DTC B1675 may be output at this time, but they are not related to this check.

Text in Illustration

*1	Rear Floor Side Airbag Sensor
*2	Center Airbag Sensor

REPLACE REAR FLOOR SIDE AIRBAG SENSOR

REPLACE CENTER AIRBAG SENSOR ASSEMBLY

Door Side Airbag Sensor RH Malfunction (B1690/15,B1695/16)

DESCRIPTION The side airbag sensor LH or RH consists of the safing sensor, diagnostic circuit, lateral deceleration sensor, etc. If the center airbag sensor receives signals from the lateral decel ...

Seat Belt Buckle Switch LH Circuit Malfunction (B1656/38)

DESCRIPTION The seat belt buckle switch LH circuit consists of the center airbag sensor and front seat inner belt LH. DTC B1656/37 is stored when a malfunction is detected in the seat belt buckle ...

Other materials about Toyota 4Runner:

Acceleration Sensor Circuit Malfunction (C1887/87)
DESCRIPTION The stabilizer control ECU receives forward, backward and lateral acceleration information from the yaw rate and acceleration sensor via CAN communication. DTC Code DTC Detection Condition Trouble Area ...

Panel Switches do not Function
CAUTION / NOTICE / HINT NOTICE: After replacing the navigation receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, registration of the XM radio ID is necessary. PROCEDURE 1. CHECK PANEL SWITCH ...