Differences

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--- projects:challenger604:boostpumpswitchtroubleshooting [2022/09/14 05:19]
dwheele [Notes]
+++ projects:challenger604:boostpumpswitchtroubleshooting [2022/09/14 05:21] (current)
dwheele [Conclusion]
@@ Line 15: / Line 15: @@
 We removed the fuel assembly in the cockpit, and measured ohms between pin underscore-C and underscore-D. On the Right Hand Fuel Boost Switch, it measured about 600 ohms and the same spot on the LH switch it measured about 16 ohms. As a comparison, we measured other contacts, such as B to underscore-Z, and it measured 0.5 ohms.
-It appears that indeed the RH Fuel Boost Switch needs to be replaced, and the LH switch should also be replaced. This agrees with Don's input that the LH switch did cause one failure, but otherwise the RH switch had the faulty result.
+It appears that indeed the **RH Fuel Boost Switch needs to be replaced, and the LH switch should also be replaced.** This agrees with Don's input that the LH switch did cause one failure, but otherwise the RH switch had the faulty result.
@@ Line 58: / Line 58: @@
 I don't know how hard it is to get to the back of that switch so I can measure.
+------------
+It turns out that to measure between CC and CNO, it is required to measured at the nearby Canon plug underscore-c to underscore-d.
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