DTC B1305: Rain Sensor Lost Communication with Relay Control Module

1. Clear the DTCs using the HDS.

1. Check the DTCs by selecting the DTCs MENU (DTCs) from the HDS.

Is DTC B1005 or B1158 indicated?

YES | - | Substitute a known-good relay module (under-hood fuse/relay box) and recheck. If the symptom goes away, replace the original under-hood fuse/relay box.■
NO | - | Go to Step 3 .

1. Disconnect the rain sensor 5P connector.

1. Check for continuity between the rain sensor 5P connector No. 3 terminal and body ground.

Is there continuity?

YES | - | Replace the rain sensor. ■
NO | - | Repair an open in the BLK wire or poor ground (LHD: G501, RHD: G601).■