Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000015C1O
Model Year Start: 2018 Model: Camry HV Prod Date Range: [07/2017 - 08/2022]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B167B,B167C; Lost Communication with Front Door Pressure Sensor LH; 2018 - 2022 MY Camry HV [07/2017 - 08/2022]

DTC

B167B

Lost Communication with Front Door Pressure Sensor LH

DTC

B167C

Front Door Pressure Sensor LH Initialization Incomplete

DESCRIPTION

The side collision sensor LH circuit (bus 1) consists of the airbag sensor assembly, door side airbag sensor LH and side No. 2 airbag sensor LH.

The door side airbag sensor LH and side No. 2 airbag sensor LH detect impacts to the vehicle and send signals to the airbag sensor assembly to determine if the airbags and pretensioners should be deployed.

These DTCs are stored when a malfunction is detected in the side collision sensor LH circuit (bus 1).

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Test Mode / Check Mode

B167B

Lost Communication with Front Door Pressure Sensor LH
  • The airbag sensor assembly detects a line short, short to ground or B+, or an open in the side collision sensor LH circuit (bus 1).
  • Side No. 2 airbag sensor LH malfunction
  • Door side airbag sensor LH malfunction
  • Airbag sensor assembly malfunction
  • Floor wire
  • Front door wire LH
  • Side No. 2 airbag sensor LH
  • Door side airbag sensor LH
  • Airbag sensor assembly

Comes on

Does not apply to test/check mode

B167C

Front Door Pressure Sensor LH Initialization Incomplete
  • The airbag sensor assembly detects a line short, short to ground or B+, or an open in the side collision sensor LH circuit (bus 1).
  • Side No. 2 airbag sensor LH malfunction
  • Door side airbag sensor LH malfunction
  • Airbag sensor assembly malfunction
  • Floor wire
  • Front door wire LH
  • Side No. 2 airbag sensor LH
  • Door side airbag sensor LH
  • Airbag sensor assembly

Comes on

Does not apply to test/check mode

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

Click here 2018 - 2019 MY Camry HV [07/2017 - 09/2019]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION 2020 - 2024 MY Camry HV [09/2019 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

PROCEDURE

1.

CHECK CONNECTION OF CONNECTORS

(a) Turn the power switch off.

(b) Disconnect the cable from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

(c) Check that the connectors are properly connected to the door side airbag sensor LH and side No. 2 airbag sensor LH. Also check that the connectors that link the floor wire and front door wire LH are properly connected.

OK:

The connectors are properly connected.

NG

CONNECT CONNECTORS PROPERLY
OK

2.

CHECK CONNECTORS

(a) Disconnect the connectors from the door side airbag sensor LH and side No. 2 airbag sensor LH. Also disconnect the connectors that link the floor wire and front door wire LH.

(b) Check that the terminals of the connectors are not deformed or damaged.

OK:

The terminals are not deformed or damaged.

NG

REPLACE FLOOR WIRE OR FRONT DOOR WIRE LH
OK

3.

CHECK WIRE HARNESS

(a) Connect the connectors that link the floor wire and front door wire LH.

*1

Door Side Airbag Sensor LH

*2

Side No. 2 Airbag Sensor LH

*3

Front Door Wire LH

*4

Floor Wire

*5

Service Wire

*a

Front view of wire harness connector

(to Side No. 2 Airbag Sensor LH)

*b

Front view of wire harness connector

(to Door Side Airbag Sensor LH)

(b) Connect the cable to the negative (-) auxiliary battery terminal.

(c) Turn the power switch on (IG).

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

R34-1 (BDL+) - Body ground

Power switch on (IG)

Below 1 V

R34-2 (BDL-) - Body ground

Power switch on (IG)

Below 1 V

(e) Turn the power switch off.

(f) Disconnect the cable from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

(g) Using a service wire, connect terminals 2 (BDL+) and 1 (BDL-) of connector E.

NOTICE:

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

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

R34-1 (BDL+) - R34-2 (BDL-)

Always

Below 1 Ω

(i) Disconnect the service wire from connector E.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

R34-1 (BDL+) - R34-2 (BDL-)

Always

1 MΩ or higher

R34-1 (BDL+) - Body ground

Always

1 MΩ or higher

R34-2 (BDL-) - Body ground

Always

1 MΩ or higher
NG

GO TO STEP 6

OK

4.

CHECK SIDE NO. 2 AIRBAG SENSOR LH

(a) Connect the connector to the door side airbag sensor LH.

*1

Side No. 2 Airbag Sensor RH

*2

Airbag Sensor Assembly

(b) Interchange the side No. 2 airbag sensor LH with RH and connect the connectors.

(c) Connect the cable to the negative (-) auxiliary battery terminal.

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

(e) Clear the DTCs stored in memory.

Body Electrical > SRS Airbag > Clear DTCs

(f) Turn the power switch off.

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

(h) Check for DTCs.

Body Electrical > SRS Airbag > Trouble Codes

HINT:

Codes other than DTCs B166D, B166E, B167B and B167C may be output at this time, but they are not related to this check.

Result

Proceed to

DTC B167B or B167C is output.

A

DTC B166D or B166E is output.

B

DTCs B166D, B166E, B167B and B167C are not output.

C

(i) Turn the power switch off.

(j) Disconnect the cable from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

(k) Return the side No. 2 airbag sensor LH and RH to their original positions and connect the connectors.

B

REPLACE SIDE NO. 2 AIRBAG SENSOR LH 2018 - 2020 MY Camry HV [07/2017 - 10/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: REAR AIRBAG SENSOR: REMOVAL 2021 - 2022 MY Camry HV [10/2020 - 08/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: REAR AIRBAG SENSOR: REMOVAL

C

USE SIMULATION METHOD TO CHECK 2018 MY Camry HV [07/2017 - 09/2018]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2019 MY Camry HV [09/2018 - 09/2019]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2020 MY Camry HV [09/2019 - 10/2020]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2021 MY Camry HV [10/2020 - 08/2021]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2022 - 2024 MY Camry HV [08/2021 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING

A

5.

CHECK DOOR SIDE AIRBAG SENSOR LH

(a) Interchange the door side airbag sensor LH with RH and connect the connectors.

*1

Door Side Airbag Sensor RH

*2

Side No. 2 Airbag Sensor LH

(b) Connect the cable to the negative (-) auxiliary battery terminal.

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

(d) Clear the DTCs stored in memory.

Body Electrical > SRS Airbag > Clear DTCs

(e) Turn the power switch off.

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

(g) Check for DTCs.

Body Electrical > SRS Airbag > Trouble Codes

HINT:

Codes other than DTCs B166D, B166E, B167B and B167C may be output at this time, but they are not related to this check.

Result

Proceed to

DTC B167B or B167C is output.

A

DTC B166D or B166E is output.

B

DTCs B166D, B166E, B167B and B167C are not output.

C

(h) Turn the power switch off.

(i) Disconnect the cable from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

(j) Return the door side airbag sensor LH and RH to their original positions and connect the connectors.

A

REPLACE AIRBAG SENSOR ASSEMBLY 2018 - 2020 MY Camry HV [07/2017 - 10/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: REMOVAL 2021 - 2024 MY Camry HV [10/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: REMOVAL

B

REPLACE DOOR SIDE AIRBAG SENSOR LH 2018 - 2019 MY Camry HV [07/2017 - 09/2019]; SUPPLEMENTAL RESTRAINT SYSTEMS: SIDE AIRBAG SENSOR (for Front Door): REMOVAL 2020 MY Camry HV [09/2019 - 10/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: SIDE AIRBAG SENSOR (for Front Door): REMOVAL 2021 - 2024 MY Camry HV [10/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: SIDE AIRBAG SENSOR (for Front Door): REMOVAL

C

USE SIMULATION METHOD TO CHECK 2018 MY Camry HV [07/2017 - 09/2018]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2019 MY Camry HV [09/2018 - 09/2019]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2020 MY Camry HV [09/2019 - 10/2020]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2021 MY Camry HV [10/2020 - 08/2021]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2022 - 2024 MY Camry HV [08/2021 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING

6.

CHECK FLOOR WIRE

(a) Disconnect the floor wire connector from the front door wire LH.

*1

Door Side Airbag Sensor LH

*2

Side No. 2 Airbag Sensor LH

*3

Front Door Wire LH

*4

Floor Wire

*5

Service Wire

*a

Front view of wire harness connector

(to Side No. 2 Airbag Sensor LH)

*b

Front view of wire harness connector

(to Front Door Wire LH)

(b) Connect the cable to the negative (-) auxiliary battery terminal.

(c) Turn the power switch on (IG).

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

OR1-23 (BDL+) - Body ground

Power switch on (IG)

Below 1 V

OR1-41 (BDL-) - Body ground

Power switch on (IG)

Below 1 V

(e) Turn the power switch off.

(f) Disconnect the cable from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

(g) Using a service wire, connect terminals 1 (BDL+) and 2 (BDL-) of connector B.

NOTICE:

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

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

OR1-23 (BDL+) - OR1-41 (BDL-)

Always

Below 1 Ω

(i) Disconnect the service wire from connector B.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

OR1-23 (BDL+) - OR1-41 (BDL-)

Always

1 MΩ or higher

OR1-23 (BDL+) - Body ground

Always

1 MΩ or higher

OR1-41 (BDL-) - Body ground

Always

1 MΩ or higher
OK

REPLACE FRONT DOOR WIRE LH
NG

REPLACE FLOOR WIRE