Test 10: Wiper Switch Wash Circuit

Using Harness Adapter (210 589 01 63 00), connect Breakout Box (129 589 00 21 00) to combination control module, leaving connector "A" disconnected from combination control module. Turn ignition switch to RUN position. Measure voltage between terminals No. 42 and 63 at breakout box. If battery voltage exists, wiper switch wash function is okay at this time. If battery voltage does not exist, check wiring. If wiring is okay, replace combination switch.