LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 1992 >> Cherokee Limited >> Repair and Diagnosis >> Accessories & Equipment >> Wiper/Washer Systems >> Testing >> Front Wiper Switch Test

Front Wiper Switch Test

NOTE: All terminals specified in this test are on wiper switch connector for vehicles with standard wipers. For vehicles with intermittent wipers, specified terminals are on switch side connector of intermittent module. Module is on lower instrument panel cover, near steering column.
  1. Turn ignition on. Check for battery voltage on terminal "D"' White wire). If no voltage exists, repair open circuit in White wire from circuit breaker.
  2. Set wiper switch to LO. Measure voltage at terminal "E" (Gray wire). If meter does not indicate battery voltage, replace switch.
  3. Set wiper switch to HI. Measure voltage at terminal "C" (Purple wire). If meter does not indicate battery voltage, replace switch.
  4. Measure voltage at terminal "F" (Yellow wire). Meter should indicate battery voltage. Set wiper switch to OFF. Meter should indicate battery voltage until wipers park, then drop to zero volts. If voltage is not as specified, replace switch.
  5. For models with intermittent wipers, disconnect switch side connector from module. With an ohmmeter, measure resistance between terminals "A" (Dark Green wire) and "D" (White wire) while rotating switch from minimum to maximum delay. If resistance does not vary smoothly between 0-500,000 ohms, replace switch.
  6. For models with intermittent wipers, disconnect switch side connector from module. With an ohmmeter, measure resistance between terminals "A" (Dark Green wire) and "G" (Brown wire) while rotating switch from minimum to maximum delay. If resistance does not vary smoothly between 0-500,000 ohms, replace switch.
scientia non olet · About LEMON Manuals