Repair manual

Troubleshooting the Water Spray System RD 27
wc_tx001224gb.fm 90
Continued from the previous page.
6. Measure the voltage between wire C935-PU-16 at the connector and ground.
Is at least 10 VDC measured?
7. Check the continuity of wire 200-BK-16 to ground.
Is there continuity?
8. Locate the spray relay (c) and disconnect it.
9. Check the continuity of wire C937-WH-18 between the timer module connector
(d) and the spray relay connector (e).
Is there continuity?
10.Reconnect the timer module.
11.Turn the key switch to the ON position.
12.Move the spray switch to the intermittent position.
13.Check the continuity between wire C937-WH-18 at the spray relay connector
and ground. The continuity will turn on and off as the timer cycles.
Does the continuity cycle on and off?
Result The timer module has now been checked.
If the problem has not been resolved, continue with the next topic.
Yes ____ No ____
Continue. Repair wire
C935-PU-16.
Yes ____ No ____
Continue. Repair wire
200-BK-16.
Yes ____ No ____
Continue. Repair wire
C937-WH-18.
Yes ____ No ____
The timer module is OK. The timer module has failed; replace it.