| DTC B1128: | Driver's Door Lock Switch Signal Error |
| 1. | Clear the DTCs with the HDS. |
| 2. | Turn the ignition switch OFF, and then back ON (II). |
| 3. | Operate the driver's door lock switch LOCK/UNLOCK ten times. |
| 4. | Check for DTCs with the HDS. Is DTC B1128 indicated? YES - Go to 5. NO - Intermittent failure. The driver's door lock system is OK at this time.n |
| 5. | With the driver's door lock switch in the neutral position, select KEYLESS from the HDS and enter the DATA LIST. |
| 6. | Check the ON/OFF information of the DRIVER'S DOOR LOCK SWITCH (LOCK) and DRIVER'S DOOR LOCK SWITCH (UNLOCK) in the DATA LIST. Are both information indicators OFF? YES - Faulty MICU, replace the under-dash fuse/relay box.n NO - Go to 7. |
| 7. | Disconnect the driver's power window switch 22P connector. |
| 8. | Check the ON/OFF information of the DRIVER'S DOOR LOCK SWITCH (LOCK) and DRIVER'S DOOR LOCK SWITCH (UNLOCK) in the DATA LIST. Are both information indicators OFF? YES - Faulty door lock switch; replace the driver's power window switch.n NO - Go to 9. |
| 9. | Turn the ignition switch OFF. |
| 10. | Disconnect the under-dash fuse/relay box connector T (34P). |
| 11. | Check for continuity between the No. 28 (LOCK) and No. 27 (UNLOCK) terminals of the under-dash fuse/relay box connector T (34P) and body ground.
Are there continuity? YES - Repair a short in the LOCK or UNLOCK wire.n NO - Go to 12. |
| 12. | Check for continuity between the No. 28 (LOCK) and No. 27 (UNLOCK) terminals of the under-dash fuse/relay box connector T (34P).
Is there continuity? YES - Repair a short in the wire between the LOCK and UNLOCK wires.n NO - Faulty MICU, replace the under-dash fuse/relay box.n |