2003 Caddy Sedan DeVille - reset tire pressure monitor??

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Thread: 2003 Caddy Sedan DeVille - reset tire pressure monitor??

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    2.4 Liter SIDI ECOTEC 06MonteSS's Avatar
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    2003 Caddy Sedan DeVille - reset tire pressure monitor??

    My parents just bought a 2003 Cadillac Sedan DeVille, which has the tire pressure monitoring system on it.

    When the tires are rotated, or new ones put on, is there a way to reset the tire monitor themselves, or does it HAVE to go to a dealer to do it?

    TIA!
    Last edited by 06MonteSS; 03-06-2006 at 08:25 AM.

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    Re: 2003 Caddy Sedan DeVille - reset tire pressure monitor??

    DTC C0750, C0755, C0760, or C0765

    Circuit Description

    The Tire Pressure Monitor (TPM) system has a radio frequency (RF) transmitting pressure sensor inside each wheel/tire assembly. As vehicle speed increases, centrifugal force closes the sensor's internal roll switch, which puts the sensor into drive mode. The remote control door lock receiver (RCDLR) receives and translates the data contained in each sensor's RF transmission into sensor presence, sensor mode, and tire pressure. Once vehicle speed is 32 km/h (20 mph), or greater, the RCDLR waits for the first sensor to go into drive mode then checks if all sensors have gone into drive mode.
    Condition for Running the DTC

    Vehicle speed is 32 km/h (20 mph), or greater.
    Conditions for Setting the DTC

    Any given sensor does not go into drive mode, or does not transmit at all for 35 minutes.
    Action Taken When the DTC Sets
    • A DTC is stored in memory.
    • The DIC displays the SERVICE TIRE MONITOR warning message.
    • The DIC displays the suspect tire pressure as dashes.
    Conditions for Clearing the DTC
    • A current DTC will clear when the malfunction is no longer present.
    • A history DTC will clear after 100 consecutive malfunction free ignition cycles.
    • Using a scan tool.
    Diagnostic Aids
    • The sensor activation/scan procedure using the J-46079 TPM diagnostic tool with the J 41760 sensor activating tool, may have to be repeated up to 3 times before determining a sensor is malfunctioning.
    • Occasionally sensors can become mislocated due to previous tire rotations where the sensor learn procedure was not performed. Always learn the sensors to ensure the DTC set is for that actual physical corner of the vehicle. Refer to Tire Pressure Sensor Learn .
    • Loss of, or low vehicle battery voltage, or disconnecting the RCDLR will cause the sensors Id codes to be erased from the RCDLR's memory and set all 4 of the sensor DTCs. If this condition is suspected, refer to Tire Pressure Sensor Learn .
    • Occasionally sensor transmission are not received by the RCDLR due to vehicle level RF interference.
    Test Description

    The numbers below refer to the step numbers on the diagnostic table.
    1. <LI value=2>Tests if the sensors will transmit valid data with good signal strength in response to a magnetic activation. During this step it is important to observe the signal strength graph on the TPM tool's display screen when the sensor transmits. Any more than 1/4 graph displayed can be considered good signal strength. The TPM diagnostic tool can only store transmission data from 1 sensor at a time, therefore the scan button must be pressed and released prior to each sensor activation.
      <A name=TD03><LI value=3>Tests if the RCDLR can receive and translate data from simulated sensor transmissions
      <A name=TD05>
    2. Tests if the sensors internal roll switch is functioning properly.
    Step
    Action
    Values
    Yes
    No
    Schematic Reference: Tire Pressure Monitoring System Schematics
    1
    Did you perform the Tire Pressure Monitor Diagnostic System Check?
    Go to Step 2
    Go to DiagnosticSystem Check - Tire Pressure Monitoring
    2
    1. <LI type=1>Using the J-46079 TPM tool, press and release the scan button.
    2. Using the J 41760sensor activating tool, activate each tire pressure sensor and record each sensor's transmission data on the repair order.
    Does the TPM tool display each sensor's transmission data as specified?
    8 digit ID number, accurate tire pressure +/- 2 psi, Learn Mode, Good Signal Strength
    Go to Step 3
    Go to Step 6
    3
    1. <LI type=1>Enable the TPM learn mode. Refer to Tire Pressure Sensor Learn. <LI type=1>Using the TPM tool in simulate mode, learn 4 simulated sensor transmissions into the RCDLR's memory.
    2. With the scan tool observe all 4 tire pressures.
    Does the scan tool display all 4 tire pressures as specified?
    LF Tire Pressere-10 psi, RF Tire Pressure-20 psi, RR Tire Pressure-30 psi, LR Tire Pressure-40 psi, +/- 4 psi
    Go to Step 4
    Go to Step 7
    4
    Learn the tire pressure sensors. Refer to Tire Pressure Sensor Learn .
    Did you complete the procedure?
    Go to Step 5
    --
    5
    Operate the vehicle within the conditions for running and setting the DTC.
    Does the DTC reset?
    Go to Step 6
    System OK
    6
    Replace the suspect sensor. Refer to Tire Pressure Sensor Replacement .
    Did you complete the replacement?
    Go to Step 8
    -
    7
    Replace the RCDLR. Refer to Remote Control Door Lock Receiver Replacement In Keyless Entry.
    Did you complete the replacement?
    Go to Step 8
    -
    8
    1. <LI type=1>Use the scan tool in order to clear the DTC.
    2. Operate the vehicle within the conditions for running and setting the DTC.
    does the DTC reset?
    Go to Step 2
    System OK

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    Re: 2003 Caddy Sedan DeVille - reset tire pressure monitor?

    if its anything like the Olds Aurora . There will be a button behind the fuse door on the drivers side of the edge of the dash. you ll have to open the drivers door to see the fuse door. I will tell you how to do the rest in the manual
    Last edited by 327; 03-06-2006 at 06:56 PM.

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    Re: 2003 Caddy Sedan DeVille - reset tire pressure monitor?

    if u disconnect the battery that might work.

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