Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM10000000289W7 |
Model Year Start: 2023 |
Model: GR Corolla |
Prod Date Range: [11/2022 -
] |
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM (for TMMMS Made): B00C086; Passenger Seat Occupant Classification Sensor "A" Signal (some circuit quantity, reported via serial data) Invalid; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 - ] |
DTC
|
B00C086
|
Passenger Seat Occupant Classification Sensor "A" Signal (some circuit quantity, reported via serial data) Invalid
|
DESCRIPTION
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
B00C086
|
Passenger Seat Occupant Classification Sensor "A" Signal (some circuit quantity, reported via serial data) Invalid
|
Either of following conditions is met:
-
The airbag sensor assembly detects a line short, short to ground or +B in the front occupant classification sensor LH circuit.
-
Front occupant classification sensor LH malfunction
-
Airbag sensor assembly malfunction
|
-
Harness or connector
-
Separate type front seat cushion spring assembly RH (front occupant classification sensor LH)
-
Airbag sensor assembly
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
HINT:
-
If it is difficult to perform troubleshooting (wire harness inspection), remove the front passenger seat installation bolts to see under the seat cushion.
-
In the above case, lift and hold the seat so that it does not fall down. Hold the seat only as necessary because holding the seat for a long period of time may cause seat rail deformation.
PROCEDURE
(a) Check the DTCs.
Body Electrical > SRS Airbag > Trouble Codes
Result
|
Proceed to
|
B00C086 is output
|
A
|
B00C286 is output
|
B
|
B00C086 and B00C286 are output
|
C
|
B00C086 and B00C286 are not output
|
D
|
HINT:
Codes other than DTCs B00C086 and B00C286 may be output at this time, but they are not related to this check.
A
|
|
|
2.
|
CHECK CONNECTION OF CONNECTORS
|
(a) Turn the ignition switch off.
(b) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
(c) Check that the connectors are properly connected to the airbag sensor assembly and separate type front seat cushion spring assembly RH (front occupant classification sensor LH).
OK:
The connectors are properly connected.
NG |
|
CONNECT CONNECTORS PROPERLY
|
OK
|
|
|
(a) Disconnect the airbag sensor assembly connector.
|
|
*1
|
Separate Type Front Seat Cushion Spring Assembly RH (Front Occupant Classification Sensor LH)
|
*2
|
Airbag Sensor Assembly
|
*3
|
Wire Harness
|
|
|
(b) Disconnect the separate type front seat cushion spring assembly RH (front occupant classification sensor LH) connector.
(c) Check that the terminals of the connectors are not deformed or damaged.
OK:
The terminals are not deformed or damaged.
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
4.
|
CHECK HARNESS AND CONNECTOR (AIRBAG SENSOR ASSEMBLY - SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY RH)
|
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
O17-32 (SIG) - j6-2 (SIG)
|
Always
|
Below 1 Ω
|
|
|
*1
|
Separate Type Front Seat Cushion Spring Assembly RH
|
*2
|
Airbag Sensor Assembly
|
*3
|
Wire Harness
|
*a
|
Front view of wire harness connector
(to Airbag Sensor Assembly)
|
*b
|
Front view of wire harness connector
(to Separate Type Front Seat Cushion Spring Assembly RH (Front Occupant Classification Sensor LH))
|
|
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
5.
|
CHECK CONNECTION OF CONNECTORS
|
(a) Turn the ignition switch off.
(b) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
(c) Check that the connectors are properly connected to the airbag sensor assembly and separate type front seat cushion spring assembly RH (rear occupant classification sensor LH).
OK:
The connectors are properly connected.
NG |
|
CONNECT CONNECTORS PROPERLY
|
OK
|
|
|
(a) Disconnect the airbag sensor assembly connector.
|
|
*1
|
Separate Type Front Seat Cushion Spring Assembly RH (Rear Occupant Classification Sensor LH)
|
*2
|
Airbag Sensor Assembly
|
*3
|
Wire Harness
|
|
|
(b) Disconnect the separate type front seat cushion spring assembly RH (rear occupant classification sensor LH) connector.
(c) Check that the terminals of the connectors are not deformed or damaged.
OK:
The terminals are not deformed or damaged.
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
7.
|
CHECK HARNESS AND CONNECTOR (AIRBAG SENSOR ASSEMBLY - SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY RH)
|
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
O17-32 (SIG) - j7-2 (SIG)
|
Always
|
Below 1 Ω
|
|
|
*1
|
Separate Type Front Seat Cushion Spring Assembly RH
|
*2
|
Airbag Sensor Assembly
|
*3
|
Wire Harness
|
*a
|
Front view of wire harness connector
(to Airbag Sensor Assembly)
|
*b
|
Front view of wire harness connector
(to Separate Type Front Seat Cushion Spring Assembly RH (Rear Occupant Classification Sensor LH))
|
|
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
8.
|
CHECK CONNECTION OF CONNECTORS
|
(a) Turn the ignition switch off.
(b) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
(c) Check that the connectors are properly connected to the airbag sensor assembly and separate type front seat cushion spring assembly RH.
OK:
The connectors are properly connected.
NG |
|
CONNECT CONNECTORS PROPERLY
|
OK
|
|
|
(a) Disconnect the airbag sensor assembly connector.
|
|
*1
|
Separate Type Front Seat Cushion Spring Assembly RH
|
*2
|
Airbag Sensor Assembly
|
*3
|
Wire Harness
|
|
|
(b) Disconnect the separate type front seat cushion spring assembly RH connector.
(c) Check that the terminals of the connectors are not deformed or damaged.
OK:
The terminals are not deformed or damaged.
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
10.
|
CHECK HARNESS AND CONNECTOR (AIRBAG SENSOR ASSEMBLY - SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY RH)
|
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
O17-32 (SIG) - j6-2 (SIG)
|
Always
|
Below 1 Ω
|
O17-32 (SIG) - j7-2 (SIG)
|
Always
|
Below 1 Ω
|
|
|
*1
|
Separate Type Front Seat Cushion Spring Assembly RH
|
*2
|
Airbag Sensor Assembly
|
*3
|
Wire Harness
|
*a
|
Front view of wire harness connector
(to Airbag Sensor Assembly)
|
*b
|
Front view of wire harness connector
(to Separate Type Front Seat Cushion Spring Assembly RH (Front Occupant Classification Sensor LH))
|
*c
|
Front view of wire harness connector
(to Separate Type Front Seat Cushion Spring Assembly RH (Rear Occupant Classification Sensor LH))
|
|
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
11.
|
CHECK HARNESS AND CONNECTOR (AIRBAG SENSOR ASSEMBLY - SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY RH)
|
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
O17-32 (SIG) - Other terminals and body ground
|
Always
|
10 kΩ or higher
|
j6-2 (SIG) - Other terminals and body ground
|
Always
|
10 kΩ or higher
|
j7-2 (SIG) - Other terminals and body ground
|
Always
|
10 kΩ or higher
|
|
|
*1
|
Separate Type Front Seat Cushion Spring Assembly RH
|
*2
|
Airbag Sensor Assembly
|
*3
|
Wire Harness
|
*a
|
Front view of wire harness connector
(to Airbag Sensor Assembly)
|
*b
|
Front view of wire harness connector
(to Separate Type Front Seat Cushion Spring Assembly RH (Front Occupant Classification Sensor LH))
|
*c
|
Front view of wire harness connector
(to Separate Type Front Seat Cushion Spring Assembly RH (Rear Occupant Classification Sensor LH))
|
|
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
12.
|
CHECK HARNESS AND CONNECTOR (AIRBAG SENSOR ASSEMBLY - SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY RH)
|
(a) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
|
|
*1
|
Separate Type Front Seat Cushion Spring Assembly RH
|
*2
|
Airbag Sensor Assembly
|
*3
|
Wire Harness
|
*a
|
Front view of wire harness connector
(to Airbag Sensor Assembly)
|
*b
|
Front view of wire harness connector
(to Separate Type Front Seat Cushion Spring Assembly RH (Front Occupant Classification Sensor LH))
|
*c
|
Front view of wire harness connector
(to Separate Type Front Seat Cushion Spring Assembly RH (Rear Occupant Classification Sensor LH))
|
|
|
(b) Turn the ignition switch to ON.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
|
Condition
|
Specified Condition
|
O17-32 (SIG) - Body ground
|
Ignition switch ON
|
Below 1 V
|
j6-2 (SIG) - Body ground
|
Ignition switch ON
|
Below 1 V
|
j7-2 (SIG) - Body ground
|
Ignition switch ON
|
Below 1 V
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|