Last Modified: 07-31-2024 |
6.11:8.1.0 |
Doc ID: RM100000002779H |
Model Year Start: 2023 |
Model: GR Corolla |
Prod Date Range: [09/2022 - 11/2022] |
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): B166D,B166E; Lost Communication with Front Door Pressure Sensor RH; 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022] |
DTC
|
B166D
|
Lost Communication with Front Door Pressure Sensor RH
|
DTC
|
B166E
|
Front Door Pressure Sensor RH Initialization Incomplete
|
DESCRIPTION
The side collision sensor RH circuit (bus 1) consists of the airbag sensor assembly, side airbag pressure sensor RH and side No. 2 airbag sensor RH.
The side airbag pressure sensor RH and side No. 2 airbag sensor RH 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 RH circuit (bus 1).
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
Warning Indicate
|
Test Mode / Check Mode
|
B166D
|
Lost Communication with Front Door Pressure Sensor RH
|
-
The airbag sensor assembly detects a line short, short to ground or B+, or an open in the side collision sensor RH circuit (bus 1).
-
Side No. 2 airbag sensor RH malfunction
-
Side airbag pressure sensor RH malfunction
-
Airbag sensor assembly malfunction
|
-
Floor wire
-
Front door wire RH
-
Side No. 2 airbag sensor RH
-
Side airbag pressure sensor RH
-
Airbag sensor assembly
|
Comes on
|
Does not apply to test/check mode
|
B166E
|
Front Door Pressure Sensor RH Initialization Incomplete
|
-
The airbag sensor assembly detects a line short, short to ground or B+, or an open in the side collision sensor RH circuit (bus 1).
-
Side No. 2 airbag sensor RH malfunction
-
Side airbag pressure sensor RH malfunction
-
Airbag sensor assembly malfunction
|
-
Floor wire
-
Front door wire RH
-
Side No. 2 airbag sensor RH
-
Side airbag pressure sensor RH
-
Airbag sensor assembly
|
Comes on
|
Does not apply to test/check mode
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
PROCEDURE
1.
|
CHECK CONNECTION OF CONNECTORS
|
(a) Turn the ignition switch off.
(b) Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
(c) Check that the connectors are properly connected to the side airbag pressure sensor RH and side No. 2 airbag sensor RH. Also check that the connectors that link the floor wire and front door wire RH are properly connected.
OK:
The connectors are properly connected.
NG |
|
CONNECT CONNECTORS PROPERLY
|
OK
|
|
|
(a) Disconnect the connectors from the side airbag pressure sensor RH and side No. 2 airbag sensor RH. Also disconnect the connectors that link the floor wire and front door wire RH.
(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 RH
|
OK
|
|
|
(a) Connect the connectors that link the floor wire and front door wire RH.
|
|
*1
|
Side Airbag Pressure Sensor RH
|
*2
|
Side No. 2 Airbag Sensor RH
|
*3
|
Front Door Wire RH
|
*4
|
Floor Wire
|
*5
|
Service Wire
|
*a
|
Front view of wire harness connector
(to Side No. 2 Airbag Sensor RH)
|
*b
|
Front view of wire harness connector
(to Side Airbag Pressure Sensor RH)
|
|
|
(b) Connect the cable to the negative (-) battery terminal.
(c) Turn the ignition switch to ON.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
|
Condition
|
Specified Condition
|
O10-1 (BDR+) - Body ground
|
Ignition switch ON
|
Below 1 V
|
O10-2 (BDR-) - Body ground
|
Ignition switch ON
|
Below 1 V
|
(e) Turn the ignition switch off.
(f) Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
(g) Using a service wire, connect terminals 2 (BDR+) and 1 (BDR-) 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
|
O10-1 (BDR+) - O10-2 (BDR-)
|
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
|
O10-1 (BDR+) - O10-2 (BDR-)
|
Always
|
1 MΩ or higher
|
O10-1 (BDR+) - Body ground
|
Always
|
1 MΩ or higher
|
O10-2 (BDR-) - Body ground
|
Always
|
1 MΩ or higher
|
OK
|
|
|
4.
|
CHECK SIDE NO. 2 AIRBAG SENSOR RH
|
(a) Connect the connector to the side airbag pressure sensor RH.
|
|
*1
|
Side No. 2 Airbag Sensor LH
|
*2
|
Airbag Sensor Assembly
|
|
|
(b) Interchange the side No. 2 airbag sensor RH with LH and connect the connectors.
(c) Connect the cable to the negative (-) battery terminal.
(d) Turn the ignition switch to ON, and wait for at least 60 seconds.
(e) Clear the DTCs stored in memory.
Body Electrical > SRS Airbag > Clear DTCs
(f) Turn the ignition switch off.
(g) Turn the ignition switch to ON, 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 B166D or B166E is output.
|
A
|
DTC B167B or B167C is output.
|
B
|
DTCs B166D, B166E, B167B and B167C are not output.
|
C
|
(i) Turn the ignition switch off.
(j) Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
(k) Return the side No. 2 airbag sensor RH and LH to their original positions and connect the connectors.
A
|
|
|
5.
|
CHECK SIDE AIRBAG PRESSURE SENSOR RH
|
(a) Interchange the side airbag pressure sensor RH with LH and connect the connectors.
|
|
*1
|
Side Airbag Pressure Sensor LH
|
*2
|
Side No. 2 Airbag Sensor RH
|
|
|
(b) Connect the cable to the negative (-) battery terminal.
(c) Turn the ignition switch to ON, and wait for at least 60 seconds.
(d) Clear the DTCs stored in memory.
Body Electrical > SRS Airbag > Clear DTCs
(e) Turn the ignition switch off.
(f) Turn the ignition switch to ON, 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 B166D or B166E is output.
|
A
|
DTC B167B or B167C is output.
|
B
|
DTCs B166D, B166E, B167B and B167C are not output.
|
C
|
(h) Turn the ignition switch off.
(i) Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
(j) Return the side airbag pressure sensor RH and LH to their original positions and connect the connectors.
(a) Disconnect the floor wire connector from the front door wire RH.
|
|
*1
|
Side Airbag Pressure Sensor RH
|
*2
|
Side No. 2 Airbag Sensor RH
|
*3
|
Front Door Wire RH
|
*4
|
Floor Wire
|
*5
|
Service Wire
|
*a
|
Front view of wire harness connector
(to Side No. 2 Airbag Sensor RH)
|
*b
|
Front view of wire harness connector
(to Front Door Wire RH)
|
|
|
(b) Connect the cable to the negative (-) battery terminal.
(c) Turn the ignition switch to ON.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
|
Condition
|
Specified Condition
|
KO1-22 (BDR+) - Body ground
|
Ignition switch ON
|
Below 1 V
|
KO1-40 (BDR-) - Body ground
|
Ignition switch ON
|
Below 1 V
|
(e) Turn the ignition switch off.
(f) Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
(g) Using a service wire, connect terminals 1 (BDR+) and 2 (BDR-) 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
|
KO1-22 (BDR+) - KO1-40 (BDR-)
|
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
|
KO1-22 (BDR+) - KO1-40 (BDR-)
|
Always
|
1 MΩ or higher
|
KO1-22 (BDR+) - Body ground
|
Always
|
1 MΩ or higher
|
KO1-40 (BDR-) - Body ground
|
Always
|
1 MΩ or higher
|
OK |
|
REPLACE FRONT DOOR WIRE RH
|
NG |
|
REPLACE FLOOR WIRE
|
|