Toyota Highlander Service Manual: Wiper and washer system

Wiper & washer

...

Precaution

1. PRECAUTION OF WASHER NOZZLE ADJUSTMENT (a) Do not clean or adjust the washer nozzle with a safety pin, etc. because;  the washer nozzle tip is made of resin and could be damaged.   ...

More about Toyota Highlander:

Symptom confirmation and diagnostic trouble code
HINT: The diagnostic system in the HIGHLANDER has various functions. The first function is the Diagnostic Trouble Code (DTC) check. A DTC is a code stored in the ECU memory whenever a malfunction in the signal circuits to the ECU occurs. In a DTC check, a previous malfunction's DTC ca ...