These six steps present an orderly method of troubleshooting.
Step 1. Verify the concern. Operate the complete system to check
the accuracy and completeness of the customer's complaint. Step
2. Narrow the concern. Using the wiring diagrams, narrow down
the possible causes and locations of the concern to pinpoint the
exact cause. Read the description notes at the components and
study the wiring schematic. You should then know enough about
the circuit operation to determine where to check for the
trouble. Step 3. Test the suspected cause. Use electrical test
procedures to find the specific cause of the symptoms. The
component location reference bars and the pictures will help you
find components. Component location information for connectors,
diodes, resistors, splices and grounds can be found at Vehicle
Locations. Step 4. Verify the cause. Confirm that you have found
the correct cause by connecting jumper wires and/or temporarily
installing a known good component and operating the circuit.
Step 5. Make the rep