Dtc B1630/23 Rear Airbag Sensor Rh Circuit Malfunction

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK VEHICLE CONDITION

CHECK CONNECTORS

CHECK NO. 2 FLOOR WIRE (OPEN)

CHECK NO. 2 FLOOR WIRE (SHORT)

CHECK NO. 2 FLOOR WIRE (SHORT TO B+)

CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)

CHECK WIRE HARNESS (OPEN)

CHECK WIRE HARNESS (SHORT)

CHECK WIRE HARNESS (SHORT TO B+)

CHECK WIRE HARNESS (SHORT TO GROUND)

CHECK REAR AIRBAG SENSOR RH

CHECK SIDE AIRBAG SENSOR RH

CHECK DOOR SIDE AIRBAG SENSOR RH

CHECK FRONT DOOR WIRE RH (OPEN)

CHECK FRONT DOOR WIRE RH (SHORT)

CHECK FRONT DOOR WIRE RH (SHORT TO B+)

CHECK FRONT DOOR WIRE RH (SHORT TO GROUND)

CHECK CONNECTORS

CHECK NO. 2 FLOOR WIRE (OPEN)

CHECK NO. 2 FLOOR WIRE (SHORT TO B+)

CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)

CHECK REAR AIRBAG SENSOR RH

CHECK SIDE AIRBAG SENSOR RH

DTC B1630/23 Rear Airbag Sensor RH Circuit Malfunction

DESCRIPTION

The rear airbag sensor RH circuit consists of the center airbag sensor assembly, side airbag sensor RH, door side airbag sensor RH* and rear airbag sensor RH.
The side airbag sensor RH, door side airbag sensor RH* and rear airbag sensor RH detect impacts to the vehicle and send signals to the center airbag sensor assembly to determine if the airbags should be deployed.
DTC B1630/23 is recorded when a malfunction is detected in the rear airbag sensor RH circuit.

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 or a short circuit to B+ signal in the rear airbag sensor RH circuit for 2 seconds. Side airbag sensor RH malfunction Door side airbag sensor RH malfunction* Rear airbag sensor RH malfunction Center airbag sensor assembly malfunction	No. 2 floor wire Front door wire RH* Side airbag sensor RH Door side airbag sensor RH* Rear airbag sensor RH Center airbag sensor assembly

*: w/ Daytime Running Light

WIRING DIAGRAM

INSPECTION PROCEDURE

1.CHECK VEHICLE CONDITION

1. Check vehicle condition.
   

   Result:

   Result	Proceed to
   w/ Daytime Running Light	A
   w/o Daytime Running Light	B

B	Go to step 18

A

2.CHECK CONNECTORS

1. Turn the ignition switch off.
   

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

3. Check that the connectors are properly connected to the side airbag sensor RH, door side airbag sensor RH and rear airbag sensor RH. Also check that the connectors that link the No. 2 floor wire and front door wire RH are properly connected.
   

   OK:

   The connectors are properly connected.
   

   HINT:

   If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection.

4. Disconnect the connectors from the side airbag sensor RH, door side airbag sensor RH and rear airbag sensor RH. Also disconnect the connectors that link the No. 2 floor wire and front door wire RH.
   

5. Check that the terminals of the connectors are not damaged.
   

   OK:

   The terminals are not deformed or damaged.
   

NG	REPLACE WIRE HARNESS

OK

3.CHECK NO. 2 FLOOR WIRE (OPEN)

1. Using SST, connect terminals 4 (BCR+) and 3 (BCR-) of connector C.
   

   
   
   
   

   NOTICE:

   Do not forcibly insert SST into the terminals of the connector when connecting.

SST

09843-18040

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   M4-1 (BCR+) - M4-2 (BCR-)	Always	Below 1 Ω

3. Disconnect SST from connector C.
   

NG	REPLACE NO. 2 FLOOR WIRE

OK

4.CHECK NO. 2 FLOOR WIRE (SHORT)

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   M4-1 (BCR+) - M4-2 (BCR-)	Always	1 MΩ or higher

NG	REPLACE NO. 2 FLOOR WIRE

OK

5.CHECK NO. 2 FLOOR WIRE (SHORT TO B+)

1. Connect the cable to the negative (-) battery terminal.
   

2. Turn the ignition switch to ON.
   

3. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   M4-1 (BCR+) - Body ground	Ignition switch ON	Below 1 V
   M4-2 (BCR-) - Body ground	Ignition switch ON	Below 1 V

4. Turn the ignition switch off.
   

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

NG	REPLACE NO. 2 FLOOR WIRE

OK

6.CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   M4-1 (BCR+) - Body ground	Always	1 MΩ or higher
   M4-2 (BCR-) - Body ground	Always	1 MΩ or higher

NG	REPLACE NO. 2 FLOOR WIRE

OK

7.CHECK WIRE HARNESS (OPEN)

1. Connect the connectors that link the No. 2 floor wire and front door wire RH.
   

   
   
   
   

2. Using SST, connect terminals 2 (BDR+) and 1 (BDR-) of connector E.
   

   NOTICE:

   Do not forcibly insert SST into the terminals of the connector when connecting.

SST

09843-18040

3. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   M21-1 (BDR+) - M21-2 (BDR-)	Always	Below 1 Ω

NG	Go to step 14

OK

8.CHECK WIRE HARNESS (SHORT)

1. Disconnect SST from connector E.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   M21-1 (BDR+) - M21-2 (BDR-)	Always	1 MΩ or higher

NG	Go to step 15

OK

9.CHECK WIRE HARNESS (SHORT TO B+)

1. Connect the cable to the negative (-) battery terminal.
   

2. Turn the ignition switch to ON.
   

3. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   M21-1 (BDR+) - Body ground	Ignition switch ON	Below 1 V
   M21-2 (BDR-) - Body ground	Ignition switch ON	Below 1 V

4. Turn the ignition switch off.
   

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

NG	Go to step 16

OK

10.CHECK WIRE HARNESS (SHORT TO GROUND)

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   M21-1 (BDR+) - Body ground	Always	1 MΩ or higher
   M21-2 (BDR-) - Body ground	Always	1 MΩ or higher

NG	Go to step 17

OK

11.CHECK REAR AIRBAG SENSOR RH

1. Connect the connectors to the side airbag sensor RH and door side airbag sensor RH.
   

2. Interchange the rear airbag sensor RH with LH and connect the connectors.
   

3. Connect the cable to the negative (-) battery terminal.
   

4. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

5. Clear the DTCs stored in the memory (COROLLA_ZRE142 RM000000XFE0H1X.html).
   

6. Turn the ignition switch off.
   

7. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

8. Check for DTCs (COROLLA_ZRE142 RM000000XFE0H1X.html).
   

   Result:

   Result	Proceed to
   DTC B1630/23 is output.	A
   DTC B1635/24 is output.	B
   DTCs B1630/23 and B1635/24 are not output.	C

   HINT:

   Codes other than DTCs B1630/23 and B1635/24 may be output at this time, but they are not related to this check.

9. Turn the ignition switch off.
   

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

11. Return the rear airbag sensors RH and LH to their original positions and connect the connectors.
    

B	REPLACE REAR AIRBAG SENSOR RH (COROLLA_ZRE142 RM000000UWR08QX.html)
C	USE SIMULATION METHOD TO CHECK (COROLLA_ZRE142 RM000000XFD0GSX.html)

A

12.CHECK SIDE AIRBAG SENSOR RH

1. Interchange the side airbag sensor RH with LH and connect the connectors.
   

2. Connect the cable to the negative (-) battery terminal.
   

3. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

4. Clear the DTCs stored in the memory (COROLLA_ZRE142 RM000000XFE0H1X.html).
   

5. Turn the ignition switch off.
   

6. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

7. Check for DTCs (COROLLA_ZRE142 RM000000XFE0H1X.html).
   

   Result:

   Result	Proceed to
   DTC B1630/23 is output.	A
   DTC B1635/24 is output.	B
   DTCs B1630/23 and B1635/24 are not output.	C

   HINT:

   Codes other than DTCs B1630/23 and B1635/24 may be output at this time, but they are not related to this check.

8. Turn the ignition switch off.
   

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

10. Return the side airbag sensors RH and LH to their original positions and connect the connectors.
    

B	REPLACE SIDE AIRBAG SENSOR RH (COROLLA_ZRE142 RM000000UWN09NX.html)
C	USE SIMULATION METHOD TO CHECK (COROLLA_ZRE142 RM000000XFD0GSX.html)

A

13.CHECK DOOR SIDE AIRBAG SENSOR RH

1. Disconnect the connector from the door side airbag sensor RH.
   

2. Connect the cable to the negative (-) battery terminal.
   

3. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

4. Clear the DTCs stored in the memory (COROLLA_ZRE142 RM000000XFE0H1X.html).
   

5. Turn the ignition switch off.
   

6. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

7. Check for DTCs (COROLLA_ZRE142 RM000000XFE0H1X.html).
   

   OK:

   DTC B1630/23 is not output.
   

   HINT:

   Codes other than DTC B1630/23 may be output at this time, but they are not related to this check.

NG	REPLACE CENTER AIRBAG SENSOR ASSEMBLY (COROLLA_ZRE142 RM000000UWV074X.html)

OK
REPLACE DOOR SIDE AIRBAG SENSOR RH (COROLLA_ZRE142 RM000000UWN09RX.html)

14.CHECK FRONT DOOR WIRE RH (OPEN)

1. Disconnect the front door wire RH connector from the No. 2 floor wire.
   

   
   
   
   

   HINT:

   SST has already been inserted into connector E.

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   HM1-1 (BDR+) - HM1-2 (BDR-)	Always	Below 1 Ω

3. Disconnect SST from connector E.
   

NG	REPLACE FRONT DOOR WIRE RH

OK
REPLACE NO. 2 FLOOR WIRE

15.CHECK FRONT DOOR WIRE RH (SHORT)

1. Disconnect the front door wire RH connector from the No. 2 floor wire.
   

   
   
   
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   HM1-1 (BDR+) - HM1-2 (BDR-)	Always	1 MΩ or higher

NG	REPLACE FRONT DOOR WIRE RH

OK
REPLACE NO. 2 FLOOR WIRE

16.CHECK FRONT DOOR WIRE RH (SHORT TO B+)

1. Disconnect the front door wire RH connector from the No. 2 floor wire.
   

   
   
   
   

2. Connect the cable to the negative (-) battery terminal.
   

3. Turn the ignition switch to ON.
   

4. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   HM1-1 (BDR+) - Body ground	Ignition switch ON	Below 1 V
   HM1-2 (BDR-) - Body ground	Ignition switch ON	Below 1 V

NG	REPLACE FRONT DOOR WIRE RH

OK
REPLACE NO. 2 FLOOR WIRE

17.CHECK FRONT DOOR WIRE RH (SHORT TO GROUND)

1. Disconnect the front door wire RH connector from the No. 2 floor wire.
   

   
   
   
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   HM1-1 (BDR+) - Body ground	Always	1 MΩ or higher
   HM1-2 (BDR-) - Body ground	Always	1 MΩ or higher

NG	REPLACE FRONT DOOR WIRE RH

OK
REPLACE NO. 2 FLOOR WIRE

18.CHECK CONNECTORS

1. Turn the ignition switch off.
   

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

3. Check that the connectors are properly connected to the side airbag sensor RH and the rear airbag sensor RH.
   

   OK:

   The connectors are properly connected.
   

   HINT:

   If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection.

4. Disconnect the connectors from the side airbag sensor RH and rear airbag sensor RH.
   

5. Check that the terminals of the connectors are not damaged.
   

   OK:

   The terminals are not deformed or damaged.
   

NG	REPLACE NO. 2 FLOOR WIRE

OK

19.CHECK NO. 2 FLOOR WIRE (OPEN)

1. Using SST, connect terminals 2 (BCR+) and 1 (BCR-) of connector C.
   

   
   
   
   

   NOTICE:

   Do not forcibly insert SST into the terminals of the connector when connecting.

SST

09843-18040

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   M4-1 (BCR+) - M4-2 (BCR-)	Always	Below 1 Ω

3. Disconnect SST from connector C.
   

NG	REPLACE NO. 2 FLOOR WIRE

OK

20.CHECK NO. 2 FLOOR WIRE (SHORT TO B+)

1. Connect the cable to the negative (-) battery terminal.
   

2. Turn the ignition switch to ON.
   

3. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   M4-1 (BCR+) - Body ground	Ignition switch ON	Below 1 V
   M4-2 (BCR-) - Body ground	Ignition switch ON	Below 1 V

4. Turn the ignition switch off.
   

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

NG	REPLACE NO. 2 FLOOR WIRE

OK

21.CHECK NO. 2 FLOOR WIRE (SHORT TO GROUND)

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   M4-1 (BCR+) - Body ground	Always	1 MΩ or higher
   M4-2 (BCR-) - Body ground	Always	1 MΩ or higher

NG	REPLACE NO. 2 FLOOR WIRE

OK

22.CHECK REAR AIRBAG SENSOR RH

1. Connect the connector to the side airbag sensor RH.
   

2. Interchange the rear airbag sensor RH with LH and connect the connectors.
   

3. Connect the cable to the negative (-) battery terminal.
   

4. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

5. Clear the DTCs stored in the memory (COROLLA_ZRE142 RM000000XFE0H1X.html).
   

6. Turn the ignition switch off.
   

7. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

8. Check for DTCs (COROLLA_ZRE142 RM000000XFE0H1X.html).
   

   Result:

   Result	Proceed to
   DTC B1630/23 is output.	A
   DTC B1635/24 is output.	B
   DTCs B1630/23 and B1635/24 are not output.	C

   HINT:

   Codes other than DTCs B1630/23 and B1635/24 may be output at this time, but they are not related to this check.

9. Turn the ignition switch off.
   

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

11. Return the rear airbag sensors RH and LH to their original positions and connect the connectors.
    

B	REPLACE REAR AIRBAG SENSOR RH (COROLLA_ZRE142 RM000000UWR08QX.html)
C	USE SIMULATION METHOD TO CHECK (COROLLA_ZRE142 RM000000XFD0GSX.html)

A

23.CHECK SIDE AIRBAG SENSOR RH

1. Interchange the side airbag sensor RH with LH and connect the connectors.
   

2. Connect the cable to the negative (-) battery terminal.
   

3. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

4. Clear the DTCs stored in the memory (COROLLA_ZRE142 RM000000XFE0H1X.html).
   

5. Turn the ignition switch off.
   

6. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

7. Check for DTCs (COROLLA_ZRE142 RM000000XFE0H1X.html).
   

   Result:

   Result	Proceed to
   DTCs B1630/23 and B1635/24 are not output.	A
   DTC B1630/23 is output.	B
   DTC B1635/24 is output.	C

   HINT:

   Codes other than DTCs B1630/23 and B1635/24 may be output at this time, but they are not related to this check.

8. Turn the ignition switch off.
   

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

10. Return the side airbag sensors RH and LH to their original positions and connect the connectors.
    

B	REPLACE CENTER AIRBAG SENSOR ASSEMBLY (COROLLA_ZRE142 RM000000UWV074X.html)
C	REPLACE SIDE AIRBAG SENSOR RH (COROLLA_ZRE142 RM000000UWN09NX.html)

A
USE SIMULATION METHOD TO CHECK (COROLLA_ZRE142 RM000000XFD0GSX.html)