Cadillac Owners Forum banner

1 - 4 of 4 Posts

·
Registered
Joined
·
22 Posts
Discussion Starter #1
Twice this week i went out to the car and first thing i notice is that the automatic locks dont open when i hold the key in the unlock pos. Put the key in the ignition and turn on and the theft deterrent system kicks. This has only happened twice out of probably 40 times i have gone to the car. Go to check the codes and i get this list:

B1552 - Keep Alive Memory (KAM) Error
B1910 - Generator L-Terminal Open Circuit
B2750 - PASSKey Data Communication Failure
P0603 - Control Module Long Term Memory Reset
P1520 - Transmission Range Switch Circuit
P1571 - Traction Control Torque Request Circuit
P1626 - Theft Deterrent Fuel Enable Signal Not Received
P1634 - Ignition 1 Switch Circuit
U1255 - Class 2 Communication Malfunction (Serial Data Line Malfunction)
U1016 - Loss of Communications with PCM
U1088 - Loss of Communications with SDM
U1064 - Loss of Communications with DIM
U1040 - Loss of Class 2 Communications with ABS
B1312 - High Side Temp Sensor Open Circuit
B1983 - Device Power Circuit Low

They are all marked as history accept B1312.
What is going on???:banghead:
 

·
Registered
2005 CTS-V, 1994 Infiniti Q45
Joined
·
7,658 Posts
I would unplug the battery for a while, overnight being ideal. Sounds like the computer has had some "brain farts" and needs some "time out" to "think about what its done"

:D

Seriously, most times it helps little gremlins...
 

·
Registered
Joined
·
82 Posts
AFTER DISCONNECTING YOUR BATTERY,TRY CLEARING ALL YOUR CODES, put kley in on position but dont start it, PUSH THE OFF AND WARM BUTTON AT SAME TIME TIL DASHBOARD LITE UP LIKE A CHRISTMAS TREE THEN IT WILL RUN THRough a bunch of codes if anything is wrong with it,When your dash reads "PCM?" HIT HIGH fan ARROW BUTTON ON climate controller you should see "data?" when u see this, hit the down arrow of lower fan button until u see"CLEAR COdES" might take 3-5 presses, press the high fan button for 2 seconds and your dash will read "CODES C;LEAR" and do this for all the codes.
to find the codes, when you get to the PCM? push the lower fan button and A,ICP,SIR etc... shows and repeat the steps above on all of those.
good luck, email me at [email protected] IF you need more help r come here and do a search.
:wave:​
 
1 - 4 of 4 Posts
Top