B1630

SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1630/23,B1635/24: Rear Airbag Sensor RH Circuit Malfunction
B1635/24 - Rear Airbag Sensor LH Circuit Malfunction

DESCRIPTION

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

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

DTC B1630/23 or B1635/24 is recorded when a malfunction is detected in the rear airbag sensor LH or RH circuit.





WIRING DIAGRAM









INSPECTION PROCEDURE

NOTICE:
* w/ Navigation System (for HDD):
After the power switch is turned OFF, the display and navigation module display (HDD navigation system) records various types of memory and settings. As a result, after turning the power switch OFF, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) battery terminal.

Waiting Time before Disconnecting Cable from Negative (-) Battery Terminal:





* When disconnecting the cable, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.

PROCEDURE

1. CHECK FOR DTC

(a) Turn the power switch ON (IG).

(b) Clear the DTCs stored in the memory DTC Check / Clear.

(c) Turn the power switch OFF.

(d) Turn the power switch ON (IG), and wait for at least 60 seconds.

(e) Check for DTCs DTC Check / Clear.

Result





B -- CHECK REAR AIRBAG SENSOR LH

A -- USE SIMULATION METHOD TO CHECK Diagnosis System
C -- Continue to next step.

2. CHECK REAR AIRBAG SENSOR RH





(a) Turn the power switch OFF.

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

(c) Interchange the rear airbag sensor RH with LH and connect the connectors to them.

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

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

(f) Clear the DTCs stored in the memory DTC Check / Clear.

(g) Turn the power switch OFF.

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

(i) Check for DTCs DTC Check / Clear.

Result





HINT
Codes other than DTC B1630 and B1635 may be output at this time, but they are not related to this check.

(j) Turn the power switch OFF.

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

(l) Return the rear airbag sensor RH and LH to their original positions and connect the connectors to them.

B -- REPLACE REAR AIRBAG SENSOR RH Removal

A -- USE SIMULATION METHOD TO CHECK Diagnosis System

C -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal

3. CHECK REAR AIRBAG SENSOR LH





(a) Turn the power switch OFF.

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

(c) Interchange the rear airbag sensor RH with LH and connect the connectors to them.

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

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

(f) Clear the DTCs stored in the memory DTC Check / Clear.

(g) Turn the power switch OFF.

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

(i) Check for DTCs DTC Check / Clear.

Result





HINT
Codes other than DTC B1630 and B1635 may be output at this time, but they are not related to this check.

(j) Turn the power switch OFF.

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

(l) Return the rear airbag sensor RH and LH to their original positions and connect the connectors to them.

B -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal

A -- USE SIMULATION METHOD TO CHECK Diagnosis System

C -- REPLACE REAR AIRBAG SENSOR LH Removal