GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2005 🢒 LeSabre 🢒 Body 🢒 Doors 🢒 Power Mirror Memory Recall Position Inaccurate

Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. This step verifies that the Personalization Option is activated.

    2.

  2. This step determines if the mirror sensors are capable of sensing mirror position changes.

    3.

  3. This step verifies that the door module has the appropriate voltage available at both the horizontal and vertical sensor signal circuit pins. With the inoperative mirror harness connector disconnected from the associated door module, both the horizontal and vertical sensor signal circuits within the module should return to their highest value of 4.5-5.5 volts.

Step

Action

Value(s)

Yes

No

Schematic Reference: Outside Rearview Mirror Schematics

Connector End View Reference: Master Electrical Component List in Wiring Systems

1

Did you perform the Diagnostic System Check - Vehicle?

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Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2

Verify that the Power Mirror - Memory Recall Position Inaccurate complaint is present by performing the following steps:

  1. Turn ON the ignition, with the engine OFF.
  2. Adjust both outside rearview mirrors to your preference.
  3. With the memory switch, set the personalization recall to your adjustments.
  4. Adjust both outside rearview mirrors to an extreme position.
  5. Press the memory button that was previously programmed.

Did both outside rearview mirrors move back to the programmed setting?

--

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

  1. Install a scan tool.
  2. With the scan tool, navigate to the Setting Options screen by making the following selections:
    3. • Dash Integration Module
    • Special Functions
    • Set Options
    • Personalization Option
  3. Follow the on screen instructions to verify that the personalization option is activated.

Is the personalization option activated?

--

Go to Step 4

Go to Body Control Module Programming and Setup in Programming and Setup

4

  1. With the scan tool, navigate to the Driver Door Module Data list.
  2. With the scan tool, observe the appropriate Vertical sensor and Horizontal sensor Position parameters.
  3. With the mirror adjustment switches, move the inoperative mirror to the limits of travel in both the vertical and horizontal directions.

Does the scan tool indicate the Vertical and Horizontal Position parameter values change and are within the specified range?

0.5-4.75 V

Go to Step 9

Go to Step 5

5
  1. Turn OFF the ignition.
  2. Disconnect the harness connector of the inoperative mirror from the inoperative door module.
  3. Make sure that the other harness connectors to the door module remain connected.
  4. Turn ON the ignition, with the engine OFF.
  5. Measure the voltage of the 5-volt mirror sensor reference circuit at the door module pin.

Is the voltage indicated within the specified range?

4.5-5.5 V

Go to Step 6

Go to Step 11

6

With a scan tool, observe the appropriate Vertical Sensor and Horizontal Sensor Position parameters in the Driver Door Module Data list.

Does the scan tool indicate the Vertical and Horizontal Position parameter values are within the specified range?

4.5-5.5 V

Go to Step 7

Go to Step 11

7
  1. Install a 3-amp fused jumper wire between the mirror sensor ground circuit and the horizontal sensor signal circuit at the door module pins.
  2. With the scan tool, observe the Horizontal Sensor Position parameter.
  3. Install the 3-amp fused jumper wire between the mirror sensor ground circuit and the vertical sensor signal circuit at the door module pins.
  4. With the scan tool, observe the Vertical Sensor Position parameter.

Did the scan tool indicate the voltage for each Position parameter was within the specified range?

0-0.5 V

Go to Step 8

Go to Step 11

8

Inspect for poor connections at the harness connector of the inoperative outside rearview mirror. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 12

Go to Step 10

9

Inspect for poor connections at the harness connector of the inoperative outside rearview mirror. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 12

Go to Step 11

10

Replace the inoperative outside rearview mirror. Refer to Power Mirror Replacement .

Did you complete the replacement?

--

Go to Step 12

--

11

Replace the door module of the inoperative mirror. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?

--

Go to Step 12

--

12

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2