Intermittent System
- If wipers do not delay with switch in the correct position, place switch in "LOW" and disconnect wiring connector at delay unit. Check contacts for dirt and damage. Connect test lamp between cavities 1 and 3 of connector. The lamp should flash once each cycle. If lamp flashes periodically, replace delay unit. If not flashing periodically, check with test lamp between terminals "P1" and "P2" at motor. If lamp flashes, periodically at motor, check wiring.
- If wipers do not operate when switch is in delay position, place switch in maximum delay position and remove connector from delay unit. Connect voltmeter between cavity 4 and 6. If no voltage is present, check switch and wiring. If 10 to 15 volts are present, place switch in "LOW" position. Connect voltmeter between cavity 3 and 4. If 10 to 15 volts are present, replace delay control unit. If not, check wiring.
- If wipers only operate once when in intermittent mode, place switch in maximum delay position and test between cavities 4 and 8. If no voltage, check switch and wiring. If 10 to 15 volts are present, replace control unit.
- 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 washer operating, disconnect connector at delay unit. Connect voltmeter between terminals 4 and 7 and depress "WASH" switch. If voltage is 0, check wiring; if voltage is 10-15 volts, replace control unit.
- Disconnect wiring harness at wiper switch connector. 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 I1, (1) R to I1, I2 to Ground |
| Low | B to P1, B to A |
| High | B to P1, B to H |