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Motors

Motors


The diagrams illustrate a LHD car


Each mirror has two motors and two potentiometers. The potentiometers output information on the position of the mirrors to the PMM control module.

Current is supplied to the motors from the switch when manually selected or from the PMM control module when selected from memory.

The motors are driven by the PMM control module to the positions the door mirrors take according to the relevant memory setting. The PMM control module reads the positions of the door mirrors with the aid of the four potentiometers.

The position adopted by the mirrors according to the memory setting is determined by the PSM control module, depending on which memory button (1, 2 or 3) is selected. On the basis of the information from the PSM control module, the PMM control module activates the motors to the right position.

The motors are driven one at a time by eight different combinations depending on the memory position to be taken. Each output on the PMM control module can be directed to B+ or ground.


The table below shows the status of the control module outputs for the various movements of the mirror motors.

Mirror movement Motor, RH door vertical Pin 13 Motor, RH door horizontal Pin 14 Motor, LH door horizontal Pin 15 Motor, LH door vertical Pin 16 Motor, common output Pin 17
LH door out

B+

B+

Ground

B+

B+

LH door in

Ground

Ground

B+

Ground

Ground

LH door up

B+

B+

B+

Ground

B+

LH door down

Ground

Ground

Ground

B+

Ground

RH door out

Ground

B+

Ground

Ground

Ground

RH door in

B+

Ground

B+

B+

B+

RH door up

Ground

B+

B+

B+

B+

RH door down

B+

Ground

Ground

Ground

Ground



Diagnostics

In the event of a fault in any of the motors, it will not be possible to operate it with the switch or memory setting. See Fault diagnosis, diagnostic trouble codes B1800, B2162, B2167, B2172 and B2177.

If there is a fault in any of the potentiometers, a memory setting cannot be selected with the switch on the driver's seat. See Fault diagnosis, diagnostic trouble codes B2121, B2122, B2126 and B2127.