DTC B18B7:
Lost Communication with Right BSI Radar Unit
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to ON (II), then wait for 10 seconds.
3. Check for DTCs with the HDS.
Is DTC B18B6 or B18B7 indicated?
YES -
Go to step 4.
NO -
Intermittent failure, the system is OK at this time.?
4. Check for DTCs with the HDS.
Are DTC B18B6 and B18B7 indicated?
YES -
Go to step 5.
NO -
- Only DTC B18B6 is indicated, go to step 24.
- Only DTC B18B7 is indicated, go to step 32.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the left BSI radar unit 6P connector.
7. Turn the ignition switch to ON (II).
8. Measure the voltage between left BSI radar unit 6P connector terminals No. 2 and No. 5. There should be battery voltage.
Is there battery voltage?
YES -
Go to step 10.
NO -
Go to step 9.
9. Measure the voltage between left BSI radar unit 6P connector terminal No. 2 and body ground. There should be battery voltage.
