1. Verify the Problem
Operate the problem circuit to check the accuracy of the complaint.
Note the symptoms of the inoperative circuit.
2. Analyze the Problem
Refer to the schematic of the problem circuit in the ETM.
Determine how the circuit is suspposed to work by tracing the current path(s) from the power feed through the circuit components to ground.
Then based on the symptoms you note in step 1 and your understanding of circuit operation, identify one or more possible causes of the problem.
3. Isolate the Problem
Make circuit tests to prove or disprove the preliminary diagnosis made in step 2.
Keep in mind that a logical simple procedure is the key to afficient troubleshooting.
Test for the most likely cause of failure first.
Try to make tests at points which are easily accessible.
4. Repair the Problem
Once the specific problem is identified. make the repair using the proper tools and safe procedures.
5. Check the Problem
Operate the circuit to check for satisfactory circuit operation. Good repair practice calls for rechecking all circuit you have worked on.
Contents
Index
How to use this manual
Wire size conversion chart
Symbol
Systematic troubleshooting
Connector views
Power distribution box
Fuse data
Component location chart
Component location views
Splice location views
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