PSM Control module: Diagnostics

The control module monitors its internal functions as well as the components in the PSM system.

On an internal control module fault, diagnostic trouble code B1605 is generated and the seat cannot be adjusted using the switch or memory settings.

If the +30 power supply to the control module is missing, the seat cannot be adjusted in any direction.

If the +15 power supply to the control module is missing, the seat can be adjusted if one of the front doors is open.

No diagnostic communication is possible if the power supply is missing.