PSM Control Module: Diagnostics

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

In case of an internal control module fault, diagnostic trouble code B1605, INTERNAL FAULT  will be 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 way.

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.