Avenger L4-2.0L DOHC (1995)
Information Bus: Component Tests and General Diagnostics
Diagnostic Strategies
NOTE: Use these procedures only when instructed to do so by another test procedure.
TIP: Verify that the vehicle being tested has a fully charged battery. If it does not, false diagnostic codes or error messages may occur.
CAUTION: Be careful when performing electrical tests to prevent accidental shorting of terminals. Such mistakes can damage fuses or components and
will sometimes set a second code, making diagnosis of the original problem more difficult.
To efficiently diagnose CCD bus problems follow these six steps:
1. Verify Complaint
2. Check for Related Symptoms
3. Analyze Symptoms
4. Isolate the Problem
5. Repair the Isolated Problem
6. Verify Proper Operation
ROAD TESTING
Some complaints will require a test drive to duplicate the diagnostic code or symptom condition and to verify the repair.
CAUTIONS:
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Before road testing a vehicle, be sure that all components are reassembled.
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During the test drive, do not try to read the scan tool screen while in motion.
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Do not hang the scan tool from the rear view mirror or operate it yourself. Have an assistant available to operate the scan tool.
Component Testing
Testing for this system or component is done at the system level. See: Testing and Inspection/Diagnostic Trouble Code Tests and Associated
Procedures/Manufacturer Code Charts/Trouble Code (TC) Tests/DTC Test - CODE TO TC TEST CHART (Checking for Trouble Codes)
