Sorry, another cruise question
Thread Starter
Racer
Joined: Jan 2000
Posts: 252
Likes: 1
From: Pembroke Ontario
Sorry, another cruise question
Do you need to have the tire pressure monitors for the cruise to work? I have read every post on this issue and did all the checks and adjustments with no luck. I checked the fuse and power to the fuse, adjusted the two brake and one clutch switches, checked for codes (none) and still have had no success. 
Brake lights work fine. Speedometer works fine. My car is a 99 six speed but I have C6 wheels on it with no TPM's. Anyone have any other ideas on this cruise issue?
Thanks
Brake lights work fine. Speedometer works fine. My car is a 99 six speed but I have C6 wheels on it with no TPM's. Anyone have any other ideas on this cruise issue?Thanks
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Sometimes a misfire will not allow the cruise to be set----Whether in fact it is a real code or a false code-----If you car is modded--there is more chance of getting a "false" misfire code---However you can de-sensitize the mis-fire tables to prevent the codes--OR delete the codes permanently
( on an A4 a misfire will not allow the TC to lock as well)
( on an A4 a misfire will not allow the TC to lock as well)
Thread Starter
Racer
Joined: Jan 2000
Posts: 252
Likes: 1
From: Pembroke Ontario
8VETTE7
I used the DIC. I had some codes (HVAC) and ambient light sensor low voltage but nothing for cruise. I also plugged my little code reader into the plug under the dash and got nothing there either. I will check the other electrical areas you suggested tomorrow.
tblu92
I bought the car used so not sure of the mods I was told cam and exhaust work was done. I did not have any engine codes that I could see on the DIC or OBDII no engine light on, Are these the codes you refer to deleting permanently
I had a tumor taken out of my leg a while ago and a good chunk of my hamstrings with it so I would pretty well trade any of the rest of the options for cruise.
Thanks for your help.
Cole
I used the DIC. I had some codes (HVAC) and ambient light sensor low voltage but nothing for cruise. I also plugged my little code reader into the plug under the dash and got nothing there either. I will check the other electrical areas you suggested tomorrow.
tblu92
I bought the car used so not sure of the mods I was told cam and exhaust work was done. I did not have any engine codes that I could see on the DIC or OBDII no engine light on, Are these the codes you refer to deleting permanently
I had a tumor taken out of my leg a while ago and a good chunk of my hamstrings with it so I would pretty well trade any of the rest of the options for cruise.
Thanks for your help.
Cole
You DO NOT need TPMS for cruise control to function.
Did you pull the codes or just expect them to show up in the DIC?
After reviewing the wiring diagram there are several possible fuses and a relay that could impact Cruise operation in addition to fuse 20 in the I/P fuse box. Under hood fuse box, check fuses 16, 19 and relay 42. In the IP fuse box check fuse 8 in addition to 20.
Did you pull the codes or just expect them to show up in the DIC?
After reviewing the wiring diagram there are several possible fuses and a relay that could impact Cruise operation in addition to fuse 20 in the I/P fuse box. Under hood fuse box, check fuses 16, 19 and relay 42. In the IP fuse box check fuse 8 in addition to 20.
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
NO sometimes tuners simply delete the misfire codes in the diagnostic section of your tune--However this will NOT prevent the car for having false misfires--codes or not--The only way to eliminate the false misfire completelyis to desensitize your misfre tables in your tune---ALSO if your tranny has many miles it helps to lock the converter firmer by setting the TCC PWM table MINIMUM to about 70 %
Thread Starter
Racer
Joined: Jan 2000
Posts: 252
Likes: 1
From: Pembroke Ontario
OK
If you could scan those pags I would appreciate it. I have tried everthing else.
Thanks
Cole
If you could scan those pags I would appreciate it. I have tried everthing else.
Thanks
Cole
Your hand held code reader is going to get ONLY emissions related codes and NOT any of the Corvette specific codes (hundreds of those) that might get set. Pulling the codes into the DIC will get all that are set. I'll see if I can scan the two pages of wiring diagrams and post those up for you to use in diagnosis.
Additionally you might try pulling the codes BEFORE you shut off the engine to see any that might get set while driving that might be deleted (not recorded as History). Before you shut off the ignition clear (reset) any messages in the DIC and then go about pulling the codes as you normally would. May be some codes set or maybe not. Worth trying......
Additionally you might try pulling the codes BEFORE you shut off the engine to see any that might get set while driving that might be deleted (not recorded as History). Before you shut off the ignition clear (reset) any messages in the DIC and then go about pulling the codes as you normally would. May be some codes set or maybe not. Worth trying......
Thread Starter
Racer
Joined: Jan 2000
Posts: 252
Likes: 1
From: Pembroke Ontario
This sounds complicated, do you require special equipment? Is this a dealer thing?
Thanks
Thanks
NO sometimes tuners simply delete the misfire codes in the diagnostic section of your tune--However this will NOT prevent the car for having false misfires--codes or not--The only way to eliminate the false misfire completelyis to desensitize your misfre tables in your tune---ALSO if your tranny has many miles it helps to lock the converter firmer by setting the TCC PWM table MINIMUM to about 70 %
