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Torque on Demand Light

Tiny
CJNEPER
  • MEMBER
  • 2002 ISUZU AXIOM
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 102,000 MILES
The "Check TOD" light is flashing on this car. What exactly does this mean? The Torque on Demand system seems to be working fine, it shifts in and out just fine. I changed the transfer case oil, and the front axle gear oil, and the oil in the TOD unit. What could it be?
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Monday, August 16th, 2010 AT 8:47 PM

9 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi cjneper,

Thank you for the donation.

An error has been detected in the TOD system and you need to retrieve the trouble code to find out what is wrong.

I have sent the diagnostic files to you, go through them and let me know what you find.

Post reply here and I will be notified and response accordingly.
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Tuesday, August 17th, 2010 AT 8:59 AM
Tiny
CJNEPER
  • MEMBER
  • 7 POSTS
Thanks for the info. I did the diagnosis and the codes that appear are 13, 14, and 24.
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Wednesday, August 18th, 2010 AT 8:59 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Sorry for the delay in replying. Notification was not received and I caught this while browsing through the post.

Code 13 = Reference is shorted to ground.

Code 14 = Voltage of front speed sensor faulty.

Code 24 = Voltage or rearspeed sensor faulty.

Diagnostics would have to be carried out to determine the cause. I would suggest rectifying Code 13 first as it could be the primary cause of the problem and others mght go away after repair.


https://www.2carpros.com/forum/automotive_pictures/192750_Code13TOD02AxiomFig60a_1.jpg



https://www.2carpros.com/forum/automotive_pictures/192750_Code13TOD02AxiomFig60b_1.jpg

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Saturday, August 21st, 2010 AT 8:17 AM
Tiny
CJNEPER
  • MEMBER
  • 7 POSTS
Thanks for the info, I agree it sounds like solving Code 13 may resolve the other two codes. But the instructions are a little vague, I will need a little more detail about these connectors and where they are:

Step 1: terminals 12 and 47 in which connector?
Step 2: Where is the ECU connector and the vehicle harness terminals?
Step 3: where is the H-7 connector?
Step 4: where is the A-1 connector?

Thanks in advance if you can help me make sure I am using the correct terminals and connectors.
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Saturday, August 21st, 2010 AT 9:09 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
I have sent you the diagnostic files for the TOD system. Hope they are helpful.

For correspondence just post reply here so I need not search for the thread.
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Sunday, August 22nd, 2010 AT 4:40 AM
Tiny
JESSICA ROSEMANN
  • MEMBER
  • 2 POSTS
I have same problem but transmission slips at 1 to 2 and 3 kicks real hard wheni t does finally goes in gear what could this be?
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Thursday, August 10th, 2017 AT 12:51 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
Hello,

It sounds like you are down on fluid, Here is a guide that will help you check the level. I would also service the unit to see if that helps.

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Please let us know what happens.

Cheers, Ken
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Monday, August 14th, 2017 AT 9:00 AM
Tiny
KAREN RUBEN
  • MEMBER
  • 2 POSTS
This is what my son mentioned, but he said the fluid needed to be checked and replaced from under the car which it appears your photo is also showing?
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Sunday, December 29th, 2019 AT 9:31 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
Yes, it is under the car to service the transmission. Please let us know if you need anything else to get the problem fixed.
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Monday, December 30th, 2019 AT 5:23 PM

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