1999 C5 Electrical Issues / Battery Acid.
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6th Gear
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1999 C5 Electrical Issues / Battery Acid.
I just purchased what appeared to be a spotless 1999 C5. I drove the car home 1.5 hours with not the first issue. I then rinsed the car off due to the weather and on the way home started having gauge issues, reduced power warning, fuel gauge, etc... I checked the grounds under the hood near the headlights and they looked clean with no corrosion. I then pulled the battery, battery tray and noticed that this car has had the battery acid leak issue. I noticed there is a silver control module/ computer that sits right next to the frame rail which has some of the white powder from the acid on it. It appears that possibly one of the smaller wiring looms also has been hit by it. Is this the PCM?
Unfortunately, electrical is not my strong suit and I am truly at a loss of even where to begin. I have spoke to the seller who said he will assist in paying for repairs. Again, I just don't even know where to begin the diagnostic process to know what clean, fix, replace etc.... Any assistance or advice would be greatly appreciated. Thank you in advance. I am already aware of the ground issues, BUS line (A pillar) and the door connections.
Unfortunately, electrical is not my strong suit and I am truly at a loss of even where to begin. I have spoke to the seller who said he will assist in paying for repairs. Again, I just don't even know where to begin the diagnostic process to know what clean, fix, replace etc.... Any assistance or advice would be greatly appreciated. Thank you in advance. I am already aware of the ground issues, BUS line (A pillar) and the door connections.
Thread Starter
6th Gear
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I pulled all of the codes from the DIC and there were 47 total all with the H at the end of them which I was told is for history. Thank you for the reply.
Last edited by BeanCo; Jan 14, 2018 at 07:37 PM.
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I was able to pull the codes from the car:
10-PCM: P1626H 80-Radio: U1064 BO-RFA: U1255
20-TCS: U1301 U1016 U1096
U1016 U1096 U1064
40-BCM: U1255 99-HVAC: U1064 U1016
U1096 AO-CDCM: B2282
U1016 B2284
58SDM: U1301 B2264
U1096 U1255
60IPC: U1255 U1064
U1016 U1016
U1064 U1096
U1040 A1RDCM: NO COMM
U1176 A6 SCM: B0851
U1088 B2860
U1160 U1300
U1255
U1016
U1016
10-PCM: P1626H 80-Radio: U1064 BO-RFA: U1255
20-TCS: U1301 U1016 U1096
U1016 U1096 U1064
40-BCM: U1255 99-HVAC: U1064 U1016
U1096 AO-CDCM: B2282
U1016 B2284
58SDM: U1301 B2264
U1096 U1255
60IPC: U1255 U1064
U1016 U1016
U1064 U1096
U1040 A1RDCM: NO COMM
U1176 A6 SCM: B0851
U1088 B2860
U1160 U1300
U1255
U1016
U1016
