DTC B1-11

DTC B1-11: No Signal from the Roll Rate Sensor

Special Tools Required
- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead H 07YAZ-S3AA100

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 step 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 connections between the floor wire harness 2P connector and the roll rate sensor.

Is the connection OK?

YES - Go to step 5.

NO - Repair the poor connection and retest. If the DTC B1-11 is still present, go to step 5.




5. Disconnect the floor wire harness 2P connector (A) from the roll rate sensor.
6. Disconnect SRS unit connector C (28P) from the SRS unit.




7. Check resistance between the No. 13 and No. 14 terminals of SRS unit connector C (28P). There should be an open circuit or at least 1 MOhms.

Is the resistance as specified?

YES - Go to step 8.

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




8. Check resistance between the No. 13 terminal of SRS unit connector C (28P) and body ground, and between the No. 14 terminal and body ground. There should be an open circuit or at least 1 MOhms.

Is the resistance as specified?

YES - Go to step 9.

NO - Short to ground in the floor wire harness;replace the floor wire harness.

9. Reconnect the battery negative cable.
10. Turn the ignition switch ON (II).




11. Check for voltage between the No. 13 terminal of SRS unit connector C (28P) and body ground, and between the No. 14 terminal and body ground. There should be 1 V or less.

Is the voltage as specified?

YES - Go to step 12.

NO - Short to power in the floor wire harness;replace the floor wire harness.

12. Turn the ignition switch OFF.




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




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

Is the resistance as specified?

YES - Faulty roll rate sensor or SRS unit; replace the roll rate sensor. If the problem is still present, replace the SRS unit.

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