98 Cadillac daville

Asked by Mar 21, 2017 at 05:43 PM about the 1998 Cadillac DeVille

Question type: Maintenance & Repair

Current means bad right?Code says current  
whats the mean,do I need clear after fixing
or will it clear it self, and what is history
code mean

17 Answers

69,655

What are the codes, and yes they need to be cleared after repair.

The one's that says current IPC U1255 and the other says ACM B1312 ..all the other codes come up have history ,i'm confused about ..CURRENT & HISTORY

The one's that says current IPC U1255 and the other says ACM B1312 ..all the other codes come up have history ,i'm confused about ..CURRENT & HISTORY I was in inheritance this cadi ,I'm also getting ABS SYSTEM on display when driving and yes I checked all ans Sencers all ok and yes I changed brakes . I'm being told reset ABS Sencer ...how?

69,655

If the ABS light is still on then there is still a problem. Resetting the ABS code and there is still a problem, the light will only come back on. What are the ABS codes? Like I said, on those codes if the problem has ben fix then that light would go out on its own. But the codes would be still stored. I'm going to try and look up the other codes you mentioned.

abs only on display no code that's why i want to reset whole system. ..But I did give you other current code PIC U1255 &PCM B1312 ...WHAT ARE THOSE ?

69,655

Here is the one...U1255 CADILLAC - Lost Communications...Possible causes; Loose control module connectors, Faulty control module, Control modules poor lectrical connection, Control Modules harness open or shorted....The code is set when the Powertrain Control Module (PCM) does not receive a message that it was expecting from another control module (e.g. Transmission Control Module, ABS Module), and does not know which control module did not send the message. As with all loss of communication concerns, inspect the power, ground, and serial data circuits to the suspect module prior to replacing any parts. When the code is detected, U1255 is set when the control module does not receive a message that it was expecting from another control module, and does not know which control module did not send that message. Possible symptoms Engine Light ON (or Service Engine Soon Warning Light) U1255 CADILLAC Description Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message. These node alive messages are used for State of Health monitoring. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. When a module does not associate an identification number with at least one critical parameter within 5 seconds of beginning serial data communication, DTC U1000 or U1255 is set. When more than one critical parameter does not have an identification number associated with it, the DTC will only be reported once. The following modules communicate on the class 2 serial data circuit: - Audio amplifier - Cellular telephone module w/UV8 - Dash integration module (DIM) - Digital radio receiver - Driver door module (DDM) - Driver door switch assembly (DDSA) - Electronic brake control module (EBCM) - Electronic suspension control module (ESC) - Front passenger door module (FPDM) - Inflatable restraint sensing and diagnostic module (SDM).

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69,655

B1312 - Lamp Headlamp Input Circuit Short To Battery...Possible symptoms, Engine Light ON (or Service Engine Soon Warning Light).

Ok thanks,, where is the ground ? and yes my service engine light is on . Can a fuse cause that code?

What does PCM B1312 mean?

69,655

B1312 Code Meaning : B 1 3 1 2... OBD-II Diagnostic Body (B) / Trouble Code For Engine / Fuel And Air Metering / Throttle/Pedal Position Sensor/Switch A Circuit Intermittent / Engine Shutoff Solenoid Malfunction / Glow Plug/Heater Circuit 'A' Malfunction The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions. B1312 OBD-II Diagnostic Body (B) Trouble Code Description B1312 engine trouble code is about Glow Plug/Heater Circuit 'A' Malfunction. Reason For B1312 Code The reason of B1312 OBD-II Engine Trouble Code is Throttle/Pedal Position Sensor/Switch A Circuit Intermittent. B1312 DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.

69,655

I'm finding different thing on that b1312 code. Here is another... Trouble code B1312 - 1998 Cadillac DeVille... Means High Side Temperature Sensor Open Circuit......have a look at the sensor and test it with a multimeter, before most probably having to replace it.......Air conditioning related problem.

There is an isse with a/c , just seems to shut off ,runs fine then shuts off .thanks really in pressed with quick responses thank you .... Can you tell me how to reset my codes

69,655

You need a scanner to reset the codes.

Hey I have a new code after driving it this code came up first ....Can you tell me what this is PCM PO113 thanks

69,655

P0113 CADILLAC - Intake Air Temperature Circuit High Input...Possible causes; Faulty Intake Air Temperature (IAT) sensor, Dirty air filter, Intake Air Temperature (IAT) sensor harness is open or shorted, Intake Air Temperature (IAT) sensor circuit poor electrical connection...Description; The Intake Air Temperature (IAT) sensor is built into mass air flow sensor or in some vehicles mounted to the air filter duct housing. The sensor detects intake air temperature and transmits a signal to the Engine Control Module (ECM).The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical resistance of the thermistor decreases in response to the temperature rise. The Intake Air Temperature signal is used as an input for various systems in the vehicle.

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Ok my codes are gone now and I have tuned up ,running GREAT. ...but one issue when I sit at idle, the car almost stalls but does NOT ,any ideas ,sometime I her a click then it seems to idle down I've done complete tune up ,,plugs,wires,gas filter,flush radator,oil ,but it almost stall I need ideas thaks

69,655

There is a Idle Air Control valve that may need cleaning or replaced. It is important to also get the port it goes into cleaned out, and make sure the Mass Air Flow sensor is clean along with the air filter. Make sure the screen gets clean, and use a MAF spray cleaner.

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