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. Diagnostic Strategies If another DTC is indicated, go to the DTC Troubleshooting Index. DTC List - Supplemental Restraint System

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 MOhm.

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 MOhm.

Is the resistance as sped fled?

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. 13terminalof 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.