Design

Design

Control panel





There are two different types of control panel:
- for power seats without memory
- for power seats with memory.
Power seats without memory
In vehicles with power seat without memory, the control panel is directly connected to the motors and there is no power seat module (PSM).
Power seats with memory
In vehicles with power seat with memory, the control panel is integrated in the power seat module (PSM).
A quick way to check if the power seat has a memory function is to look at the control panel. If the seat does not have memory, there are no memory buttons (1-3) or programming button (MEM). The information describes seats with memory, power seat module (PSM) unless otherwise specified.

The controls are used to transmit input signals to the control module from the user:
- Runs each of the four motors in the direction required.
- Memory buttons. Input signal indicating the position of the buttons (Memory 1, 2 and 3 and the programming button).
The control panel cannot be replaced separately, the entire control module must be replaced in the event of a fault.
There are diagnostics for the control panel.

Electrically operated lumbar support (option)




1. Lumbar support motor
2. Control module lumbar support
3. Keypad lumbar support
On the XC60 (MY 2012-), with Inscription option, the manual lumbar support adjustment has been replaced with electrically operated lumbar support adjustment in the front seats. The lumbar support is adjusted using a separate keypad in the front section of the seat's side panel. As the system for electrically operated lumbar support adjustment is not integrated with the (Power Seat Module) neither is it part of the PSM memory function.
For further information. See: Design and Function, Power Seat Module (PSM).
Electrically operated lumbar support adjustment has its own separate control module that regulates the motor. The motor has a PTC resistor, instead of a position sensor, which prevents the motor being overloaded at the end limit positions for example.
The electrically operated lumbar support is regulated via a separate cable that runs from the CJB (fuse box under the dashboard) to the seat. The cable in the seat is further integrated with the seat wiring but not electrically.