Torque on Demand Light

2002 ISUZU AXIOM
102,000 MILES • 6 CYL • 4WD • AUTOMATIC
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CJNEPER
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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?
Aug 16, 2010 at 8:47 PM
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KHLOW2008
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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.
Aug 17, 2010 at 8:59 AM
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CJNEPER
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Thanks for the info. I did the diagnosis and the codes that appear are 13, 14, and 24.
Aug 18, 2010 at 8:59 PM
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KHLOW2008
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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

Aug 21, 2010 at 8:17 AM
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CJNEPER
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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.
Aug 21, 2010 at 9:09 PM
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KHLOW2008
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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.
Aug 22, 2010 at 4:40 AM
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JESSICA ROSEMANN
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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?
Aug 10, 2017 at 12:51 PM
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STRAILER
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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
Aug 14, 2017 at 9:00 AM
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KAREN RUBEN
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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?
Dec 29, 2019 at 9:31 AM
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STRAILER
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Yes, it is under the car to service the transmission. Please let us know if you need anything else to get the problem fixed.
Dec 30, 2019 at 5:23 PM