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System Does Not Turn "ON"

  1. Check number one terminal power at relay panel with timer removed (see illustration). With power available, see step 2)  . No power, check for power at load side of 30 amp. window heater fuse; no power, replace fuse; with power, locate and repair open circuit No. 37 Yellow wire.
  2. Check relay panel number two terminal power with switch in "NORM" position. Power available, see step 3)  . No power, check for power at "L" terminal connector of control switch in "NORM" position. Power available, repair open circuit No. 688 Gray/Lt. Blue wire. No power, check for power at terminal "B" of connector "S". Power available, replace switch. No power, check for power at load side of 7.5 amp. speed control windshield washer fuse. No power, replace fuse. With power, locate and repair open circuit No. 298 Purple/Orange wire.
  3. Check number four terminal power at relay panel with switch held "ON". Power available, see step 4)  . No power, check for power at terminal "H" of control switch connector with switch held "ON". No power, replace switch; with power, locate and repair open circuit No. 112 Black/Yellow Dot wire.
  4. Check relay panel number five terminal for ground. No ground, repair open ground circuit. With a good ground, check relay panel number three terminal for power with switch held "ON", and timer installed. No power, replace timer.
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