1982 Chrysler ImperialFACTORY OEM SERVICE PROCEDURE

Intermittent System

  1. If wipers do not delay, place switch in "LOW" and disconnect connector from delay control unit. Connect test lamp between cavities 1 and 3 of connector. The lamp should flash once each wipe cycle. If lamp flashes periodically, replace delay control. If no flash, check between motor terminals "P1" and "P2". If lamp flashes, check wiring.
  2. If wipers do not operate with switch in intermittent position, place control at maximum delay and disconnect wiring at delay unit. Connect voltmeter between cavities 4 and 6. If no voltage, check switch and wiring. If 10 to 15 volts, place switch in "LOW" position and check between cavities 3 and 4. If voltage is present, replace delay control unit. If not, check switch and wiring.
  3. If wipers only operate once when switch is in intermittent position, place switch in maximum delay position and disconnect wiring at delay unit. Connect voltmeter between cavities 4 and 8. If no voltage, check switch and wiring. If voltage is present, replace control unit.
  4. If delay does not vary with control setting, or exceeds 30 seconds, replace switch. If wipers do not operate continuously when in delay mode with washers operating, disconnect wiring at delay control. Connect voltmeter between cavities 4 and 7 and depress "WASH" button. If voltage is 0, check wiring; if voltage is 10-15 volts, replace control unit.
  5. Disconnect wiring harness at wiper switch. Test terminals of switch for continuity, using the following chart.
    2-SPEED INTERMITTENT SWITCH CONTINUITY

    Switch Position Continuity
    Off B to P1
      A to P2
    Delay B to P1
      B to L1
      (1)R to L1
      L2 to Ground
    Low B to P1
      B to A
    High B to P1
      B to H
    (1) Resistance at maximum delay: 270K to 330K ohms. Resistance at minimum delay: Zero with ohmmeter at high ohm scale.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.