Trip reset itself?
Thread Starter
Burning Brakes
Joined: Aug 2008
Posts: 1,058
Likes: 91
From: Indiana
Trip reset itself?
My car was fine yesterday and sat overnight. When I got in the Trip A and B were reset as well as everything else in the DIC except the oil life which read 98%. Why would it reset it self like this? It has a newer battery and havent had anything else like this happen esp with the car sitting. BTW it was 20 degrees out.
Le Mans Master
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
This is an indication of a bad battery. When your cranking voltage drops (below 9.5 volts), your temporary DIC memories will be reset. If it is a new battery, charge it and use a battery tender from now on when it sits.
You might want to check your C5 for a high current drain, do a search.
You might want to check your C5 for a high current drain, do a search.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Your battery is weak. If you put a volt meter on the battery terminals and observe the battery voltage at cold cranking, it will most likely drop down to 8 VDC for a fraction of a second. Just long enough for the IPC to lose power and reset to the factory defaults.
Ahhhh,,,,,
your thinking,,,how is my voltage dropping down that far and the car still cranks fine?????
Battery "VOLTAGE" is inversly proportional to battery "CURRENT" ..
When you starter draws 400-500 amps or more to crank the engine, your battery voltage will go low. If the battery is margional or very weak, it will allow the voltave to drop very low. This causes modules to drop off line until the voltage returns to the 9 vdc low voltage cut off level and set a lot of U series history DTCs to be set and stuff like the HUD IPC, HVAC etc to reset to factory defaults.
Been there liver the misery.
Isnt electricity FUN!
A nwe battery should fix your issues.
BC
