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.■