LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 1993 >> LS 400 >> Repair and Diagnosis >> Accessories & Equipment >> Wiper/Washer Systems >> Component Testing >> Wiper/Washer Switch >> Switch Continuity
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Switch Continuity

  1. With wiper/washer switch off, continuity should exist between terminals No. 4 and 7 of 20-pin connector. See Figure. With wiper switch off and washer switch in MIST position, continuity should exist between terminals No. 7 and 18 of 20-pin connector.
  2. With wiper switch in INT (intermittent) position and washer switch off, continuity should exist between terminals No. 4 and 7, and terminals No. 12 and 16 of 20-pin connector.
  3. With wiper switch in INT position and washer switch in MIST position, continuity should exist between terminals No. 7 and 18, and terminals No. 12 and 16 of 20-pin connector.
  4. With wiper switch in LO position and washer switch off, continuity should exist between terminals No. 7 and 18 of 20-pin connector. With wiper switch in LO position and washer switch in MIST position, continuity should exist between terminals No. 7 and 18 of 20-pin connector.
  5. With wiper switch in HI position and washer switch off, continuity should exist between terminals No. 13 and 18 of 20-pin connector. With wiper switch in HI position and washer switch in MIST position, continuity should exist between terminals No. 7, 13 and 18 of 20-pin connector.
  6. Press button at end of wiper/washer stalk, and check continuity between terminals No. 8 and 16 of 20-pin connector. Continuity should exist. If continuity is not as specified, replace wiper/washer switch.
scientia non olet · About LEMON Manuals