DTC Troubleshooting: B1-11

DTC B1-11:  No Signal from Roll Rate Sensor

Special Tools Required
SRS inflator simulator (  07SAZ-TB4011A)
 

SRS simulator lead H (  07YAZ-S3A0100)
 


1.Erase the DTC memory.

2.Turn the ignition switch ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.

Does the SRS indicator stay on, and is DTC B1-11 indicated?


YES - Go to 3.


NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, go to the DTC troubleshooting index.


3.Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes.

4.Check the connection between the floor wire harness 2P connector and the roll rate sensor.

Is the connection OK?


YES - Go to 5.


NO - Poor contact between the floor wire harness 2P connector and the roll rate sensor; replace the roll rate sensor. If the problem still presents, replace the floor wire harness as needed.n


5.Disconnect SRS unit connector C (28P) from the SRS unit.

6.Disconnect the floor wire harness 2P connector (A) from the roll rate sensor.

 

7.Connect the SRS inflator simulator (jumper connector) and simulator lead H to the floor wire harness 2P connector (A).

 

8.Check resistance between the No. 13 and No. 14 terminals of SRS unit connector C (28P). There should be 0-1.0 W.

 

Is the resistance as specified?


YES - Faulty roll rate sensor; replace the roll rate sensor.n


NO - Open in the floor wire harness; replace the floor wire harness.