I've searched and found part of the answer I need. My cruise control works intermitently. The times it doesn't work, I turn the cruise on and the "cruise" light comes on and stays on. Then when I get to the speed I want to set it at and press it down to set the speed, the light will blink 5 times. From searching I found out that there is a diagnostic proceedure for the CC and that the number of blinks (5) is supposed to tell me something. The problem is that I don't have an FSM. I know, I should be banned from the forum until I get one, but until I get one, is there anyone out there that happens to know what the 5 blinks mean? Or the diagnostic proceedure for the CC?
Cruise control blinking?
- Thread starter jlg32281
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Same problem here
If someone does have a factory service manual. can you please list the ISBN number so I may order that book>?
What other things could that be though?
If someone does have a factory service manual. can you please list the ISBN number so I may order that book>?
What other things could that be though?
If you know how to run a computer (I dont) you can DL any part or the complete FSM from Toyota on line for a small fee. - just say-in
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It's more complicated than just checking the number of blinks of the Cruise light in the instrument panel.
5 blinks during cruise control driving indicates a malfunction in the "speed sensor or actuator, etc" This indicates that a code (or more than one code) has been stored in the DTC memory.
It says to use a SST to read the code given by terminal Tc and E1 of the connector at DLC2. I think it's effectively just a paper clip, but someone else will have to confirm. And there is no DLC2 indicated on my diagrams, but the DLC1 is under the hood near the cruise control actuator. Anyone know about it or exactly what the DTC is, which isn't shown on the diagram with the cruise control info?
As for an ISBN, I don't think those are applied to service manuals issued by a company for its own products. There is a Publication #, Toyota RM510U.
Err, maybe not a small fee, mine was somewhere north of $100.
Best I can do. HTH
5 blinks during cruise control driving indicates a malfunction in the "speed sensor or actuator, etc" This indicates that a code (or more than one code) has been stored in the DTC memory.
It says to use a SST to read the code given by terminal Tc and E1 of the connector at DLC2. I think it's effectively just a paper clip, but someone else will have to confirm. And there is no DLC2 indicated on my diagrams, but the DLC1 is under the hood near the cruise control actuator. Anyone know about it or exactly what the DTC is, which isn't shown on the diagram with the cruise control info?
As for an ISBN, I don't think those are applied to service manuals issued by a company for its own products. There is a Publication #, Toyota RM510U.
Err, maybe not a small fee, mine was somewhere north of $100.
Best I can do. HTH
I don't know that the blinking means anything when it fails. The FSM procedure is to jumper two pins under the hood and then turn the key on and copy the error code that it blinks out. Then you look it up in the troublshooting guide and diagnose it frm there. I don't have my FSM at work, so I can't post the procedure and codes.
There *is* also a procedure for when the cruise control cuts out and the light starts blinking. A temporary fault code is stored, so you have to pull over and, without shutting the rig off, jumper the correct slots in the diagnostics port and retrieve the code.
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- #8
See, I don't know much about jumping slots and what not, but I'm guessing whatever code might be the same as what blinks when my cruise doesn't work. The only reason I think this is that there must be a reason it blinks exactly 5 times every time it goes out. Why doesn't the light just go out? Or blink twice? That might just be the code that lets you know there has been a code stored, but that seems redundant.
on topic...
I had my cruise blinking at one time, only way to fix it was to pull off an exit ramp, cut the truck off, start it back up and it would work.
Made two adjustments. One is to make sure the cruise control cable didn't have excess slack. Also, i was having a faulty brake fluid level sensor. So my brake light would come on intermittently and sometimes stay on. So i disconnected that. Since i made those two fixes at the same time, it has never blinked again; and it's been probably 5 years.
I had my cruise blinking at one time, only way to fix it was to pull off an exit ramp, cut the truck off, start it back up and it would work.
Made two adjustments. One is to make sure the cruise control cable didn't have excess slack. Also, i was having a faulty brake fluid level sensor. So my brake light would come on intermittently and sometimes stay on. So i disconnected that. Since i made those two fixes at the same time, it has never blinked again; and it's been probably 5 years.
Based on my reading of the FSM, that is exactly what is going on. The dash light's 5 blinks are just to let you know something's throwing a code.
My guess is that they assume when you have a cruise problem, you may not see the light immediately or flashing just once, so they plucked 5 blinks out of the air to make sure it gets noticed. Seems like it worked.
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- #12
Based on my reading of the FSM, that is exactly what is going on. The dash light's 5 blinks are just to let you know something's throwing a code.
My guess is that they assume when you have a cruise problem, you may not see the light immediately or flashing just once, so they plucked 5 blinks out of the air to make sure it gets noticed. Seems like it worked.
I guess it was wishful thinking to think that the blink was the code versus blinking a code to tell me I have another code. If this is true, I will add it to the short list of complaints I have of the 80. A redundant cruise control failure diagnostic, I guess they couldn't make the truck perfect and some flaws we just have to live with.
I'm in Houston, PM me if ya wanna look at FSM and or get a copy online of the area ya need.
just curious if you even checked to see if you have slack in your cruise control cable?
Don't give him too hard of a time. I have the FSM and it's not at all clear on what you should be doing.
For instance, it doesn't designate where the heck DTC or DLC2 is. My guess is that the DLC1 shown in the diagram is actually DLC2, which is a typo in the text?
Next guess is that DTC is the terminal connector that attches to DLC1 (or 2 or whatever.)
Hey, I've done more than a little tech writing. Ya think Toyota would hire me to straighten stuff like this out before the FSM for the 2012 Land Cruiser goes to press?
And does anyone know if my best guesses are just WAG or OK?
For instance, it doesn't designate where the heck DTC or DLC2 is. My guess is that the DLC1 shown in the diagram is actually DLC2, which is a typo in the text?
Next guess is that DTC is the terminal connector that attches to DLC1 (or 2 or whatever.)
Hey, I've done more than a little tech writing. Ya think Toyota would hire me to straighten stuff like this out before the FSM for the 2012 Land Cruiser goes to press?
And does anyone know if my best guesses are just WAG or OK?