Having problems with your 1999 Chevrolet Blazer ?
I have a service 4wheel drive light. What should I check?
The 4 wheel drive system has detected a problem that has generated a diagnostic trouble code. The fault will need to diagnosed with a scan tool that interfaces with the onboard computer. There is no other method of diagnosing this problem.
Repair Help & Product Troubleshooting for 1999 Chevrolet Blazer
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