DTC Troubleshooting: B1029
  1. Check for continuity between driver's under-dash fuse/relay box connector Q (20P) No. 9 terminal and body ground.
Is there continuity?
YES -
Go to Step 9 .
NO -
Repair an open in the wire between the driver's MICU and the alarm control siren.■
  1. Disconnect the jumper wire from the alarm control siren 6P connector.