Having problems with your 2002 Chevrolet TrailBlazer ?

Service 4wd light on; w4d does not work at all

\015 2002 trailblazer with service 4wd light on. When cranked all the lights on 4wd switch will blink then go out. It does not light up at all after that. 4wd does not even try to engage. As if it is dead. have take to 3 different auto parts store for code search and all say there is no code.\015 Posted / edited by AnonymousUser on : 29-11-2021

Answers :

To start with, a basic engine computer code reader will not connect to the body computer which is why they are not getting any codes.
The 4wd lights will not come on as long as the warning light is on, the system is disabled until it is fixed.
You may need someone with a professional scanner to connect to the body computer.
Repair Help & Product Troubleshooting for 2002 Chevrolet TrailBlazer

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

Loading ...

  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || carrestorationshop.com || Terms of Use || Contact || Privacy Policy
Load time: 0.0093 seconds