AWD system malfunctioning

Tiny
ANDRIN ATEM
  • MEMBER
  • 2019 TOYOTA HIGHLANDER
  • 3.5L
  • V6
  • 4WD
  • AUTOMATIC
  • 28,769 MILES
Vin number: 5TDDZRBH8MS063087

Hi dear, please can you help me this puzzle, I can’t find the AWD and the abs on the gateway network when scanning this car. Also a message shows on dash AWD overheating 2nd engaged. Am going to attach an image below on the dash warning message.

Question is, is the abs and the AWD suppose to appear on the can bus network system, May I have blog diagram of modules on network system. So to figure out why my scanner scans all other modules except for ABS and AWD module.
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Tuesday, December 30th, 2025 AT 6:51 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,371 POSTS
The modules might not be talking because of a burnt fuse or the module itself is out. Does it list the modules but not go into them? What kind of scanner do you have? Yes the AWD and ABS should show up in the scan.

This message does NOT always mean actual overheating, it often means:

“I can’t communicate with the module that controls AWD, so I’m disabling it.”

So I would turn all systems on and then check the fuses in both fuse panels. This guide can show you how.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If the fuses are good, chances are the ABS control module is out which is common on Toyotas. When you turn the key on (engine off) does the ABS waring light come on? Please go over this guide and get back to us.
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Tuesday, December 30th, 2025 AT 10:12 AM

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