04 C5 Throwing codes like crazy
Thread Starter
Drifting
Joined: Mar 2008
Posts: 1,368
Likes: 0
From: Alexandria LA
04 C5 Throwing codes like crazy
This past Friday my vette has thrown several codes and one is not even listed in the codes guide.
10-PCM P0492 C can not find this one is guide
60-IPC B0516 H
U1160 H
AO LDCM 1016 H
U 1064 H
99-HVAC B0 361 H
B0 441 HC
Car has 69K and has had the front bumper replaced 3 times since Dec 2010 from idiots running into while sitting by itself parked way away from it in pkglots
Any and all help will be greatly appreciated
Thanks, Gary
10-PCM P0492 C can not find this one is guide
60-IPC B0516 H
U1160 H
AO LDCM 1016 H
U 1064 H
99-HVAC B0 361 H
B0 441 HC
Car has 69K and has had the front bumper replaced 3 times since Dec 2010 from idiots running into while sitting by itself parked way away from it in pkglots
Any and all help will be greatly appreciated
Thanks, Gary
Drifting
Joined: Dec 2004
Posts: 1,591
Likes: 2
From: kent ct - "if i'm not in the vette, i damn well better be on the yacht."
St. Jude Donor '13
If you haven't yet done so, I suggest reading Bill Curlee's Sticky at the top of Tech.... Lots of great info there. Ask me how I know.
GL
GL
Thread Starter
Drifting
Joined: Mar 2008
Posts: 1,368
Likes: 0
From: Alexandria LA
HAve read it numerous times but not bein mecanically inclined a a disabled vet its hard for me to diagnose the problem, warranty is expired so hopefully someone who is car savvy and in LA can help me out thanks, gary
Safety Car
Joined: Mar 2005
Posts: 3,757
Likes: 1,215
From: Wisconsin
P0492 refers to one of the two secondary AIR Pump systems,
heres a link to a trouble shooting guide
http://www.gearchatter.com/viewtopic...topic10679.php
heres a link to a trouble shooting guide
http://www.gearchatter.com/viewtopic...topic10679.php
Instructor
Joined: Dec 2011
Posts: 188
Likes: 0
From: Fredonia Wisconsin
C5s are sensitive to ground wires being loose or corroded. Also I've
read that lots of codes and sometimes unrelated ones can just mean
it's time to replace the battery. Usually 5-7 yrs. on the original and
then goofy stuff starts to happen.
read that lots of codes and sometimes unrelated ones can just mean
it's time to replace the battery. Usually 5-7 yrs. on the original and
then goofy stuff starts to happen.
Racer
Joined: Oct 2011
Posts: 398
Likes: 6
From: woodstock ga
first Thank You for your service to the rest of us! If you were here in Ga i would help you. I would bet that it is a battery issue or a ground issue. can you find the negative batt cable? if so follow it to where it meets the frame. clean that ground on the frame and make sure you check the pin connector at that location.
Can you gain excess to a local mil base and have the guys in the motor pool to check this for you? also do a lot of reading in here about grounds, low voltage, and fault code clearing. GL
Can you gain excess to a local mil base and have the guys in the motor pool to check this for you? also do a lot of reading in here about grounds, low voltage, and fault code clearing. GL
Thread Starter
Drifting
Joined: Mar 2008
Posts: 1,368
Likes: 0
From: Alexandria LA
red89c4, thanks you for your kind words, did 23yrs with the last 4 in Med hold from injuries while in the Army. Ft Polk is about 50miles from me, use to have England AFB but was closed after Desert Storm. I took my battery to Advance Auto and it showed low so they put a full charge on it and it tested great so put it back in, and redid DTC still showing the HVAC 361 code, will check the ground on neg cable. I have read what I can find but dealing with wires and electrical diagrams is not my forte but am trying to learn. took me 3 months to finally change my AC compressor on my 98 3000GT but I did it. Thanks again for the help.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Racer
Joined: Oct 2011
Posts: 398
Likes: 6
From: woodstock ga
low batt will definitely do it. i ran my batt down while working on the power window and had to roll it off. DIC went crazy with codes. Charged the batt and cleared the codes, problem resolved. when i got the car in nov, i would get a random A/H disable and service ABS message. My son cleaned the neg batt to frame ground and resolved that problem. Keep us posted on the results pls.
Cruising
Joined: Oct 2011
Posts: 14
Likes: 0
my car had those exact same codes plus rdcm "loss of communication codes".
Problem will be solved by disassembling both doors, the harness that come through the door to the engine compartments are loose ( open door, the weatherproofing looks like a rubber slinky abouy 4 inches by 2 inches; about 6 inches down from top/front of window). The plastic "ears" on the harness need to be bent out ( GENTLY without braking) to hold the harness in place. The codes are caused by the harness shaking and becoming loose. Bending the ears is a service update on the ESI.
Loose grounds is also a probable cause.
my car threw the same codes, plus rdcm 03516, till I did the service bulletin. One time it even flashed "REDUCED ENGINE POWER" on the DIC and HUD. That was scary. While you got the door apart check the rubbers ( weatherprrofing) secure any that are loose and replace any that are worn.
since you are disabled most of this can be accomplished siiting in the seats for the doors. tools are simple, screwdrivers and upholstery pullers ( BE CAREFUL). inspection can be accomplished by someone that know what damage to rubber looks like.
THANK YOU FOR YOUR SERVICE!!!
Definite fix.
Problem will be solved by disassembling both doors, the harness that come through the door to the engine compartments are loose ( open door, the weatherproofing looks like a rubber slinky abouy 4 inches by 2 inches; about 6 inches down from top/front of window). The plastic "ears" on the harness need to be bent out ( GENTLY without braking) to hold the harness in place. The codes are caused by the harness shaking and becoming loose. Bending the ears is a service update on the ESI.
Loose grounds is also a probable cause.
my car threw the same codes, plus rdcm 03516, till I did the service bulletin. One time it even flashed "REDUCED ENGINE POWER" on the DIC and HUD. That was scary. While you got the door apart check the rubbers ( weatherprrofing) secure any that are loose and replace any that are worn.
since you are disabled most of this can be accomplished siiting in the seats for the doors. tools are simple, screwdrivers and upholstery pullers ( BE CAREFUL). inspection can be accomplished by someone that know what damage to rubber looks like.
THANK YOU FOR YOUR SERVICE!!!
Definite fix.
Last edited by 04C5-in-MD; Mar 6, 2012 at 11:02 PM. Reason: addition for diasbled