Move the outside mirror switch in the desired direction in order to adjust the power mirrors from the interior of the vehicle.

Each outside rear view mirror has 2 reversible motors. One motor adjusts the mirror view up and down. The other motor adjusts the mirror view to the right and to the left. The driver operates the outside switch in the following directions in order to control the polarity of the voltage motors:

The mirror select switch directs these control voltages to one of the following components:

Battery voltage is applied through the up contacts of the outside mirror switch to the up/down motor in the left outside rear view mirror under the following conditions:

The left outside rear view mirror up-down motor has a path to ground through the following components:

The left outside rear view mirror up/down motor runs and turns the power mirror up.

When the outside mirror switch is pushed to the DOWN position, the left outside rear view mirror up/down motor receives voltage. However, the voltage polarity is reversed. The motor runs in the opposite direction.

The left outside rear view mirror left/right motor operates similarly. When the power mirror switch is moved to the LEFT position, battery voltage is applied through the left/right motor in the left outside rear view mirror.

The left outside rear view mirror has a path to ground through the power mirror select switch and the right contact of the power mirror switch to ground. The left outside rear view mirror left/right motor runs. This turns the mirror to the left.

If the left/right switch is pushed to the RIGHT position, the same motor receives voltage. However, the voltage polarity is reversed. The motor runs in the opposite direction.

The right outside rear view mirror works the same way as the left outside rear view mirror under the following conditions:

Each power mirror contains 2 motors. One motor moves the power mirror up/down. The other motor moves the mirror left/right. The direction the motors turn depends on the supply voltage polarity sent to the motors. Mirror selection (left/right) and movement (up/down or left/right) is controlled by operating the outside mirror switch. When the switch assembly is operated, battery voltage or ground is applied to the module select/position inputs. The module supplies battery voltage and ground to the power mirror motors based on the input the module senses, moving the mirror to the commanded position.

The mirror motor position sensors are used in order to remember the outside mirror positions. These sensors are potentiometers contained in the power mirror drive unit. As the mirror motors turn, the potentiometer resistance is varied. The mirror position is determined by the voltage level sent to the memory seat/mirror module. The voltage level is stored in order to remember the mirror positions under the following conditions:

When the memory seat/mirror module receives a REVERSE input from the park/neutral position switch, the module tilts the right outside power mirror down 5 degrees. This position allows the driver to see the curb while parallel parking.

In order to enter the manual diagnostic modes of the memory seat/mirror module, turn the ignition switch OFF. If the ignition is set to RUN or START while the module is in a diagnostic mode, the module exits the diagnostics and sounds 3 beeps.

The mode 1 diagnostics of the memory seat/mirror module is used in order to test the following inputs:

In order to enter Mode 1 of the manual diagnostics, ensure that the memory seat diagnostic connector is grounded. You may tape the diagnostic connector into the harness. When the connector is grounded, the module beeps once in order to acknowledge entrance into the Mode 1 diagnostics. Ensure that the connector remains grounded throughout the Mode 1 diagnostics. If ground at the connector is lost for more than 5 seconds, the module exits the diagnostics and sounds 3 beeps. The following functions are disabled during mode 1:

In order to test the inputs the memory seat, or power mirror switch, is operated as if performing that function. Each time the memory seat/mirror module senses an input from a switch, the module beeps once. If a switch is operated and the module does not beep, the module did not receive the input. There may be a problem with the switch or the wiring from the switch to the module.

The Mode 2 diagnostic is used in order to test the seat and power mirror position sensor inputs. In order to enter Mode 2 of the manual diagnostic while in the Mode 1 diagnostic, ground is removed from the memory seat diagnostic connector. Ground is then reapplied within 5 seconds. The module beeps twice in order to acknowledge that the module has entered the Mode 2 diagnostic. If ground at the connector is lost for more than 5 seconds, the module exits the diagnostic and sounds 3 beeps. The seats and power mirrors move during the Mode 2 diagnostic. In order to test the inputs, one of the following components is operated in order to command the seat or the mirror to move:

The position sensor input for that direction is tested. For example, if the seat is commanded to move forward, the module tests the forward/back position sensor. If the module sounds a beep when a switch is being operated, the module senses a discontinuity in that direction's position sensor. This condition means that there may be a problem with the position sensor or the wiring from the switch to the position sensor.

In order to exit the diagnostic mode, perform one of the following actions:

When the module exits the diagnostic mode, the module sounds 3 beeps in order to acknowledge that the module is no longer in the diagnostic mode.