Memory Seat/Mirror Module Diagnostic Modes

In order to enter the manual diagnostic modes of the memory seat/mirror module, ensure that the ignition switch is off. If the ignition is set to RUN or START while the module is in a diagnostic mode, then the module will exit diagnostics and sound 3 beeps. Mode 1 diagnostics of the memory seat/mirror module is used to test all memory, seat, and mirror switch inputs.

In order to enter Mode 1 of the manual diagnostics, the memory seat/mirror module diagnostic connector must be grounded. The diagnostic connector may be taped into the harness. When the connector is grounded, the module will beep once in order to acknowledge entry into the mode 1 diagnostics. The connector must remain grounded throughout the mode 1 diagnostics. If ground at the connector is lost for more than 5 seconds, the module will exit diagnostics and sound 3 beeps. The following functions are disabled during Mode 1:
^ Memory
^ Seat
^ Mirror

In order to test the inputs, the following switches are operated as if performing that function:
^ The memory switch
^ The seat switch
^ The mirror switch

Each time the memory seat/mirror module receives 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 wiring from the switch to the module.

The Mode 2 diagnostics is used in order to test the seat and mirror position sensor inputs. in order to enter mode 2 of the manual diagnostics, while in mode 1 diagnostics the ground is removed from the memory seat/mirror module diagnostic connector and then reapplied within 5 seconds. The module will then beep twice in order to acknowledge that the module has entered the mode 2 diagnostics. If ground at the connector is lost for more than 5 seconds, the module will exit diagnostics and sound 3 beeps. The seats and mirrors will move during the mode 2 diagnostics. In order to test the inputs, the left seat switch or power mirror switch is operated to command the seat or mirror to move. The position sensor input for that direction is tested. For example, if the seat is commanded to move forward, the module will test 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. There may be a problem with the position sensor or the wiring from the module to the position sensor.

In order to exit the diagnostic mode, perform one of the following procedures:
^ Remove ground from the memory seat/mirror module diagnostic connector for more than 5 seconds.
^ Turn the ignition to the RUN or START position. When the module exits the diagnostic mode, the module will sound 3 beeps in order to acknowledge that the module is no longer in the diagnostic mode.