( TL19E00K769000Y1077FAAT00 )

DTC Troubleshooting: B1077

1. Measure the voltage between body ground and the wiper motor 4P connector No. 2 [No. 1] terminal with the wiper switch ON (Low), and measure the voltage between body ground and the wiper motor 4P connector No. 4 [No. 3] terminal with the wiper switch ON (High) respectively.
   [ ]: RHD model

Is there battery voltage?

YES | - | Go to Step 19 .
NO | - | Test the wiper relay circuit. If the relay circuit is OK, check the F7 and F8 terminals of the driver's under-dash fuse/relay box connector F (33P) by the input test. If the input tests prove OK, replace the driver's under-dash fuse/relay box . If the relay circuit is faulty, replace the relay circuit board.■