mule3010

I have posted earlier about all my gauges quitting and all the warning lights staying on. (abs,check eng., seatbelt ect.) I ran the insturment check and a code of AA 00 came back. Any clues to what this might be? I have checked all fuses and relays along with all the electrical plug connections I could find with no luck. (2004.5 QC 4x4 48re)
Any pros who know what the aa 00 code is please chime in.
Thanks
joe

thunderdawg

AA -- PCM messages not received. The second pair of digits is a counter for the number of ignition key cycles that have occurred since the displayed DTC was set.

handymantim

This is just a guess but it sounds like you have a plug/connector disconnected somewhere. Try pushing all the connectors under the dash and around the PCM (passenger side firewall) back together.