1999 FRC DIC Going crazy Help please

[Dellboy]

This car was backed into at about 5mph with very minimal damage to the rear bumper, however now the dic is giving the following codes
PCM
P1626 Theft Deterrent System Fuel Enable Circuit

TCS
U1016 Loss of communicatiocs with PCM
U1301 Class 2 Circuit Shorted to Battery

BCM
U1016 Loss of Communications with PCM
U1096 Loss of communications with IPC
U1255 Serial Data Line Malfunction

IPC
U1016 Loss of communications with PCM
U1040 Loss of communications with TCS
U1064 Loss of communications with BCM
U1160 Loss of communications with LDCM
U1176 Loss of communications with RFA
U1255 Serial data line malfunction
U1088

BO-RFA
U1016 Loss of communications with PCM
U1064 Loss of communications with BCM
U1096 Loss of communications with IPC
U1255 Serial Data Line Malfunction


The battery is new and I have checked for loose wires in the bcm.
Any help would be greatly appreciated

Thanks

 

[c4c5specialist]

HI there,
There is definately a communications problem between all the control modules.
What I would suggest is that you perform the DTC check when the condition is actually occuring.
I would need all the information that you see, including the modules that do NOT have codes, be it NO CODES or NO COMM>
Please keep us posted, c4c5

 

[Dellboy]

Well its working again. I took the rear tail light assembly out and made sure thew wiring was seated ( the side that got bumped), wd40 the ground connection and tightened it then wiggled the wiring harness at the passanger side door. When I started the car the passenger side window worked again so I cleared the codes and took the car on a 30 mile spin. No codes no lights on the dash came on when I stopped I rechecked the codes there were none Seems to be back to normal I dont know what fixed it but am very happy its working.

Thanks for looking at my problem C4 C5 I really apprecate your time
Derek

 

[atmmac]

any damage to the car? Its too bad that had to happen.

 

[Dellboy]

any damage to the car? Its too bad that had to happen.

Yes the plastic bumped got compressed and lots of little cracks. From about 6 feet away it just looks dark but up close UGH . I think a spoiler will cover the damage . Foot slipped of the cluch while adjusting seat after letting big brother drive, of course it was in reverse The dic problem reappeared but I have it isolated to wiring in passenger door, am going to take off door panel today to find the fault.