Motor, electrically adjustable door mirror (126)
| Motor, electrically adjustable door mirror (126) |
| Location |
Motor, electrically adjustable door mirror, left-hand (126)
Motor, electrically adjustable door mirror, right-hand (126)
| Main task |
Purpose of motor unit:
| • |
Angle the mirror as desired by the driver.
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| • |
Detect the position of the mirror so that this can be stored (mirrors with memory, option)
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| • |
Fold the door mirrors in or out (option).
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| Type |
The door mirror has one motor for angling the mirror glass to the left and right and one for angling it up and down. Both motors are 2-pole motors. Their polarity is reversed to run them in the opposite direction. The motors of mirrors with memory function each have a potentiometer. Electrically foldable mirrors have an additional motor. This is also a 2-pole motor, the polarity of which is reversed to run it in the opposite direction.
| Connect |
Electric motor for mirror glass
The motors are 2 pole and connected with their own separate wiring and common wiring to the door control module.
Potentiometers
The sensors are connected by 4 wires to the door control module. The sensors have a common 5 V power supply and ground. They each have a signal cable to the door control module. The voltage from each potentiometer is converted into a digital value. The control module input has a high-ohmic resistor connected to 5 V. The purpose of this voltage is to ensure that the voltage on the pin goes to 5 V in the event of a power loss, so that a DTC can be generated.
Electric motor for foldable door mirror
The motor is 2-pole and is connected to the door control module.
| Pin number | Signal type | Description |
| 1 (A) | B+ for downward movement Grounded for upward movement. | Motor up/down |
| 2 (A) | B+ for rightward movement. Grounded for leftward movement. | Motor left/right |
| 3 (A) | Potentiometer value 0-5 V | Position left/right |
| 4 (A) | 5 V feed to both potentiometers | Common + to potentiometers |
| 5 (A) | Not used | |
| 6 (A) | Ground for both potentiometers | Common ground for potentiometers |
| 7 (A) | Potentiometer value 0-5 V | Position up/down |
| 8 (A) | Grounded for downward/rightward movement. B+ for upward/leftward movement | Motors up/down/left/right, common |
| 9 (A) | +PWM from door control module. | Mirror heating + |
| 10 (A) | Chassis ground | Mirror heating - |
| 8 (B) | B+ for folding in Grounded for folding out | Motor, folding |
| 10 (B) | B+ for folding out. Grounded for folding in. | Motor, folding |
Door mirror without memory:
Door mirror with memory:
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