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Buick Regal Check Engine Light



  • My car is missing really bad. I have an p1352 code. I changed the intion modlue and I'm thinking about changing the pcm. Is there any one that can help me?
  • joedynamojoedynamo Posts: 2
    Disconnect the battery and connect the cables together to reset the controller's door position. The doors should perform a sweep test to relearn door positions. If this fixes the problem, a revised controller is available. Bulletin #02-01-39-001 is related. If that does not fix the problem, use a scan tool to monitor door commanded and actual door positions. Also check for poor a/c performance problem. It is common to cause different dashboard outlet temperatures.

    291 days and 20 hours ago.
    Removing the battery cables and putting them together did not solve the problem. I dont know what a scan tool is. my a/c was working very good. I was having no problems until the new battery was installed. There is the push button climate control in the dash and buttons on the passenger door that says cooler and warmer on it. Sometimes when i push around on some of the buttons the outside temp light will quit flashing and i get heat. with the air i get cold on the driver side and heat on the passenger side dashboard outlets. ajusting the climate control on the passenger door does not change the heat to cool.

    Posted by Bob 291 days and 20 hours ago.
    I understand the ac WAS working ok before, but there is a TSB from Gm on this exact problem and this is the bulletin. It could be just coincidental when you changed the battery the controller is the problem. A scan tool can check the body control module for codes and show you the right direction to go.

    #02-01-39-001: HVAC Temperature Difference Side to Side and/or DTC B0361, B0441 Set (Replace HVAC Controller, Splice into Backlighting Circuit) - (Feb 7, 2002) Subject: HVAC Temperature Difference Side to Side and/or DTC B0361, B0441 Set (Replace HVAC Controller, Splice into Backlighting Circuit) Models: 1997-99 Buick Century, Regal 1998-99 Oldsmobile Intrigue with RPO CJ2 Condition Some customers may comment on a temperature variation between the left and right hand ducts. Typical concerns may include that the right side of the vehicle cools down but the left stays warm or the opposite. This condition is sometimes associated by the customer with a recent service visit for other non-related repairs. The codes, DTC B0361 or B0441, may be present but will not illuminate a telltale lamp. Cause The HVAC controller unit and the TEMP door actuator motors rely on a feedback system that supplies the controller with count values in order to accurately adjust the air temperature. When battery power is interrupted to the HVAC controller, the current actuator position values are lost. When power is restored, the controller will perform a "sweep test" of the doors from full cold to full hot and record the end values for reference. Over time, the TEMP doors may develop some flexing when run to their extremes. This flexing allows the count values to run out of range (beyond 0-255) and results in DTC code B0361 or B0441 to set. Correction A revised HVAC controller has been released with new programming that allows for a wider tolerance in the expected range of the TEMP door. Replace the controller using the procedure below: Important: On the 1997 Buick Century and Regal, additional steps are required. You will have to run a jumper wire to the new HVAC controller. Be sure to follow the additional 1997 model year steps below. 1. Disconnect the negative battery cable. Important: On the Buick Regal, the console must first be removed to access the HVAC controller. For Buick Century and Oldsmobile Intrigue, skip to Step 10. 2. Apply the parking brake and block wheels. 3. Shift the transmission to first gear. 4. Remove the console trim plate and disconnect the electrical harness. 5. Disconnect the cigarette lighter sockets. 6. Remove the console storage box. 7. Remove the console control plate and disconnect electrical harness for traction control and heated seats, if equipped. 8. Remove the console retaining bolts. 9. Remove the console from the vehicle. 10.Remove the HVAC trim panel, if equipped. 11.Remove the HVAC controller retaining bolts. 12.Disconnect the electrical harness. 13.Discard the HVAC controller. Important: At this point, you must refer to the 1997 Buick section below if working on that model and year. The section below includes steps to revise vehicle wiring to enable HVAC controller backlighting. 14.If the vehicle is a 1997 Buick Century or Regal, refer to the section below titled 1997 Buicks (Enabling Backlighting Circuit). 15.Connect the HVAC controller electrical harness and install the controller retaining bolts. 16.Install the control module trim plate, if equipped. Skip to Step 23 for the Buick Century and Oldsmobile Intrigue. Continue below for the Buick Regal. 17.Install the console to the vehicle. 18.Install the console retaining bolts. 19.Install the console control plate and connect the electrical harness for traction control and heated seats, if equipped. 20.Install the console storage box. 21.Connect the cigarette lighter sockets. 22.Install the console trim plate and connect the electrical harness. 23.Shift the transmission to PARK and unblock the wheels. 24.Connect the negative battery cable. Additional Steps for 1997 Buicks (Enabling Backlighting Circuit) 1. Remove the radio retaining bolts. 2. Remove the radio and disconnect the electrical harness. 3. Prepare an 457.2 mm (18 in) long, 18 gauge jumper wire. If multiple colors are available, it would be the most convenient to use grey to continue the backlighting circuit in the same color. 4. Locate and splice one end of the jumper wire to the grey wire occupying pin location F4 at the radio harness. 5. Position the radio back into the I/P and route the jumper wire down to the HVAC controller harness location. 6. Using a new terminal (GM P/N 12146447 Micro-Pak .35-.50), attach and install the other end of the jumper wire into cavity C16 of the HVAC controller harness. The row and column position indications are molded into the body of the HVAC controller at the harness location. 7. Connect the electrical harness to the HVAC controller. 8. Connect the negative battery cable and test the HVAC backlighting by turning on the headlamps and varying the backlighting intensity. 9. Install the radio retaining bolts. 10.Install the I/P upper trim panel. 11.Refer back to Step 15 of the Correction section to complete the procedure. (You will have already connected the electrical harness).
    Parts Information Part Number Description 10435588 Controller, HVAC (Buick) XXXXXXX Controller, HVAC (Oldsmobile) Parts are currently available from GMSPO.

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  • nyrprnyrpr Posts: 1
    I replaced mass air flow sensor 2x, removed throller assy and cleaned ,installed new gasket,replaced throller sensor,replaced mass air flow connector. the last thing I did was replaced mass air flow sensor again and check engine light did go out,but it stayed off until I turn on the A/C. As soon I turn on A/C check engine light came back on and driver side vent hot air came out and pass side is ok cold air. Which was working fine before P0102 problems started. Any idea what is wrong? In the last 6 months, Battery,starter,alternator,ignition switch,plugs, coil, wheel hubs,rotors,and brake pads all been replaced for different reasons. I would like just 1 month that nothing was wrong with the car. lol If there is a short or bad ground between A/C and Mass Air Flow? where? Can it be the idle solenoid?
  • maffei13maffei13 Posts: 2
    edited December 2012
    Like a lot of you my check engine light stays on..low tire stays on inside dash lights not so good sometimes fog lights work Hi-beam is what I use all the time because, tried replacing the drivers side lo beam- worked for a bit, then both now don't work, even with new bulbs. someone mentioned fuses-- mine are under hood and I have no manual and I'm a broke girl $$$ can't do expensive hoping someone could share their fix its
    thanks Pam
    Everything else works pretty well. Only had the car 4 mos. I sat in a tow yard I believe for couple of years. Thankfully it just doesn't stop
  • turn ignition on. in fuse box is tire pressure relearn button. push it and you should be good. make sure tire pressure set correctly when doing this. some auto stores will check code for check engine light for no charge then at least you will know what is wrong.
  • Thank you located the inside fuse box did that, took positive cable off and check engine and low tire lights went off. I was very happy but now again after working for a while now lo beams or hi beams do not work uugghhh. Where do I begin searching for a short OMG I was so excited I thought I actually followed directions and fix it :(
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