Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Passenger Seat Belt Sensor Circuit Open (B005213)

Toyota Corolla Cross (2022-2024) Service Manual / Vehicle Interior / Supplemental Restraint Systems / Airbag System / Passenger Seat Belt Sensor Circuit Open (B005213)

DESCRIPTION

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Test Mode / Check Mode

B005213

Passenger Seat Belt Sensor Circuit Open

One of the following conditions is met:

  • The airbag ECU assembly detects an open in the passenger seat belt sensor circuit for 2 seconds.
  • Passenger seat buckle switch malfunction
  • Airbag ECU assembly malfunction
  • Harness or connector
  • Passenger seat buckle switch (front seat inner belt assembly RH)
  • Airbag ECU assembly

Comes on

Does not apply to test/check mode
DTC Detection Conditions:
 

Vehicle Condition

Pattern 1

Pattern 2

Pattern 3

Diagnosis Condition

Ignition switch ON

○

○

○

Malfunction Status

The airbag ECU assembly detects an open in the passenger seat belt sensor circuit

○

-

-

Passenger seat buckle switch malfunction

-

○

-

Airbag ECU assembly malfunction

-

-

○

Detection Time

2 seconds

2 seconds

2 seconds

Number of Trips

1 trip

1 trip

1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) battery terminal.

Click here

HINT:

When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

Click here

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 60 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 airbag ECU assembly and passenger seat buckle switch (front seat inner belt assembly RH).

OK:

The connectors are properly connected.

NG

CONNECT CONNECTORS PROPERLY
OK

2.

CHECK CONNECTORS

(a) Disconnect the connectors from the airbag ECU assembly and passenger seat buckle switch (front seat inner belt assembly RH).

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

OK:

The terminals are not deformed or damaged.

*1

Passenger Seat Buckle Switch (Front Seat Inner Belt Assembly RH)

*2

Airbag ECU Assembly

*3

Wire Harness
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

3.

CHECK HARNESS AND CONNECTOR (OPEN)

(a) Using a service wire, connect terminals 27 (RBE+) and 18 (GNDR) of connector B.

NOTICE:

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

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

j15-1 - j15-2

Always

Below 1 Ω

Result:

Proceed to

OK

NG

*1

Passenger Seat Buckle Switch (Front Seat Inner Belt Assembly RH)

*2

Airbag ECU Assembly

*3

Wire Harness

*4

Service Wire

*a

Front view of wire harness connector

(to Passenger Seat Buckle Switch (Front Seat Inner Belt Assembly RH))

*b

Front view of wire harness connector

(to Airbag ECU Assembly)

(c) Disconnect the service wire from connector B.

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

4.

CLEAR DTC

(a) Connect the connector to the airbag ECU assembly.

*1

Passenger Seat Buckle Switch (Front Seat Inner Belt Assembly RH)

*2

Airbag ECU Assembly

*3

Wire Harness

*4

Service Wire

*a

Front view of wire harness connector

(to Passenger Seat Buckle Switch (Front Seat Inner Belt Assembly RH))

(b) Using a service wire, connect terminals 1 and 2 of connector C.

NOTICE:

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

(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.

NEXT

5.

CHECK DTC

(a) Turn the ignition switch to ON, and wait for at least 60 seconds.

(b) Check for DTCs.

Body Electrical > SRS Airbag > Trouble Codes

Result

Proceed to

B005213 is output

A

B005213 is not output

B

HINT:

Codes other than DTC B005213 may be output at this time, but they are not related to this check.

(c) Disconnect the service wire from connector C.

A

REPLACE AIRBAG ECU ASSEMBLY

B

REPLACE PASSENGER SEAT BUCKLE SWITCH (FRONT SEAT INNER BELT ASSEMBLY RH)

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