Question about 2004 Oldsmobile Bravada

2 Answers

2004 Bravada Climate Control Blend Door

One side blows cold air and the other side warm air. I assume the Control Blend Door is stuck. Everything was working great until I replaced the battery. I have disconnected the battery and after waiting for 30 or so minutes, reconnected the battery with no change. I also tried taking our the HVAC fuse B and waiting then reinstalling with no change.

Surely, replacing the battery didn't not ruin this door. The dealer is asking $700 bucks to repair. I think the DTC need to be reset.

Any ideas how to repair?
Thanks

Posted by on

  • woruss Sep 18, 2008

    Solution that was offered was already tried per my original submission. I tried this and it did not work.

  • woruss Sep 18, 2008

    How do you clear the DTC's?

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2 Answers

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  • Anand Kumar
    Anand Kumar Sep 18, 2008


    1. Place the ignition switch to the OFF position.

    2. Disconnect the scan tool.

    3. Install the auxiliary HVAC control module.

    4. Connect all previously disconnected components.

    5. Place the ignition switch in the RUN position.

    6. Wait 40 seconds for the auxiliary HVAC control module to self-calibrate.

    7. Verify that no DTCs have set as current DTCs.
    When
    replacing an auxiliary HVAC actuator it will be necessary to allow the
    auxiliary HVAC control module to perform a calibration process. When
    installing the auxiliary HVAC actuator be sure to perform one of the
    following:

    NOTEAuxiliary HVAC blower operation is disabled during the re-calibration process.Alternate Method (W/O Scan Tool)


    1. Clear all DTCs.

    2. Place the ignition switch to the OFF position.

    3. Install the auxiliary HVAC actuator.

    4. Connect all previously disconnected components.

    5. Remove the HVAC B fuse for a minimum of 10 seconds.

    6. Install the HVAC B fuse.

    7. Place the ignition switch in the RUN position.

    8. Wait 40 seconds for the auxiliary HVAC control module to self-calibrate.

    9. Verify that no DTCs have set as current DTCs.
    Preferred Method (W/ Scan Tool)


    1. Clear all DTCs.

    2. Place the ignition switch in the OFF position.

    3. Install the auxiliary HVAC actuator.

    4. Connect all previously disconnected components.

    5. Place the ignition switch in the RUN position.

    6. With the scan tool, initiate the HVAC Actuator Recal. feature of the RHVAC/RSA module Special Functions menu.

    7. Verify that no DTCs have set as current DTCs.


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Dear,

You might try treating it like a computer...reboot. Disconnect the battery for 20 minutes and make sure the cell phone charger doesn't have a cell phone in it. Surprisingly enough, there was a guy years ago on the old Wrenchead.com site who couldn't reset the codes on an OBDI vehicle and later found a cell phone on the charger which was back feeding the ECM enough the codes wouldn't reset.

regards,

dont rate it until satisfied

Posted on Sep 18, 2008

  • SALMAN NASEER Sep 19, 2008

    dear,

    check this link will guide you more about DTCs

    http://www.ssrfanatic.com/forum/f5/tsb-r...

    regards,

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