1. Disconnect the negative battery cable..
2. Remove the front under cover No.2..
3. Remove the back-up light switch..
4. Verify that the continuity between the back-up light switch terminals is as indicated in the table.


If not as indicated in the table, replace the back-up light switch.
Auto Light Sensor
Back Up Light Switch Removal/Installation [C66 M R]Rain Sensor
Outline
The rain sensor detects the amount of rainfall and calculates the wiper operation
speed, and outputs a windshield wiper control signal to the front body control
module (FBCM) to perform automatic wiper operation (auto wiper system) according
to the amount of rainfall.
...
Switch Panel Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the car-navigation unit. (with car-navigation system).
3. Insert your hand from the lower side of the lower panel (without car-navigation
system) or the area where the car-navigation unit was installed (with car-navigation
system), press t ...
Hazard Warning Flasher
The hazard warning lights should always be used when you stop on or near a roadway
in an emergency.
The hazard warning lights warn other drivers that your vehicle is a traffic hazard
and that they must take extreme caution when near it.
Depress the hazard warning flasher and all the turn sig ...