Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Right Curtain Deployment Control 1 Circuit Short to Ground (B002911)

Toyota Corolla Cross (2022-2024) Service Manual / Vehicle Interior / Supplemental Restraint Systems / Airbag System / Right Curtain Deployment Control 1 Circuit Short to Ground (B002911)

DESCRIPTION

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Test Mode / Check Mode

B002911

Right Curtain Deployment Control 1 Circuit Short to Ground

One of the following conditions is met:

  • The airbag ECU assembly detects a short to ground in the curtain shield squib RH circuit for 0.5 seconds.
  • Curtain shield squib RH (curtain shield airbag assembly RH) malfunction
  • Airbag ECU assembly malfunction
  • Harness or connector
  • Curtain shield squib RH (Curtain shield airbag assembly RH)
  • Airbag ECU assembly

Comes on

Applies to 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 a short to ground in the curtain shield squib RH circuit

-

-

Curtain shield squib RH (curtain shield airbag assembly RH) malfunction

-

-

Airbag ECU assembly malfunction

-

-

Detection Time

0.5 seconds

0.5 seconds

0.5 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

  • To perform the simulation method, select Check Mode with the GTS.

    Click here

  • Perform the simulation method while checking the Data List.

    Click here

PROCEDURE

1.

CHECK CURRENT 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

Current B002911 is output

A

Current B002911 is not output

B

B

USE SIMULATION METHOD TO CHECK

Click here

HINT:

  • Perform the simulation method by selecting Check Mode using the GTS.

    Click here

  • Perform the simulation method while checking the Data List.

    Click here

A

2.

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 curtain shield airbag assembly RH and airbag ECU assembly.

OK:

The connectors are properly connected.

NG

CONNECT CONNECTORS PROPERLY

OK

3.

CHECK CONNECTORS

(a) Disconnect the connectors from the curtain shield airbag assembly RH and airbag ECU assembly.

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

OK:

The terminals of the connectors are not deformed or damaged.

*1

Curtain Shield Airbag Assembly RH

*2

Airbag ECU Assembly

*3

Wire Harness

(c) Check that the short springs of the activation prevention mechanism of the wire harness connector are not deformed or damaged.

OK:

The short springs are not deformed or damaged.

(d) Check that the wire harness connector (on the curtain shield airbag assembly RH side) is not loose, deformed or damaged.

OK:

The airbag connector locking button is not disengaged, and the claw of the lock is not deformed or damaged.

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4.

CLEAR DTC

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

*1

Curtain Shield Airbag Assembly RH

*2

Airbag ECU Assembly

*3

Wire Harness

*a

Front view of wire harness connector

(to Curtain Shield Airbag Assembly RH)

(b) Connect the white wire side of SST (resistance 2.1 Ω) to connector C.

CAUTION:

Never connect a tester to the curtain shield airbag assembly RH for measurement, as this may lead to a serious injury due to airbag deployment.

NOTICE:

  • Do not forcibly insert SST into the terminals of the connector when connecting it.
  • Insert SST straight into the terminals of the connector.

SST: 09843-18061

(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 CURTAIN SHIELD AIRBAG ASSEMBLY RH

(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

B002911 is not output

A

B002911 is output

B

HINT:

Codes other than DTC B002911 may be output at this time, but they are not related to this check.

(c) Turn the ignition switch off.

(d) 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.

(e) Disconnect SST from connector C.

A

REPLACE CURTAIN SHIELD AIRBAG ASSEMBLY RH

B

6.

CHECK HARNESS AND CONNECTOR

(a) Disconnect the connector from the airbag ECU assembly.

(b) Check for a short to ground in the circuit.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

O207-1 (ICR+) - Body ground

Always

1 MΩ or higher

O207-2 (ICR-) - Body ground

Always

1 MΩ or higher

*1

Curtain Shield Airbag Assembly RH

*2

Airbag ECU Assembly

*3

Wire Harness

*a

Front view of wire harness connector

(to Curtain Shield Airbag Assembly RH)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

7.

CLEAR DTC

(a) Connect the connectors to the curtain shield airbag assembly RH and airbag ECU assembly.

*1

Curtain Shield Airbag Assembly RH

*2

Airbag ECU Assembly

(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.

NEXT

8.

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

B002911 is not output

A

B002911 is output

B

HINT:

Codes other than DTC B002911 may be output at this time, but they are not related to this check.

A

USE SIMULATION METHOD TO CHECK

Click here

HINT:

  • Perform the simulation method by selecting Check Mode using the GTS.

    Click here

  • Perform the simulation method while checking the Data List.

    Click here

B

REPLACE AIR BAG ECU ASSEMBLY

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