View Enhancement Function
VIEW ENHANCEMENT FUNCTIONFRONT WIPER AND WASHER
1. Front wiper working conditions
These functions are active when lgn2 switch ON
In the OFF and ACC states, the front wiper is not activated. If IGN2 turns OFF during wiper operation, the wiper stops at the current position and will move to the park position on the next IGN2 ON. In these states, the front washer is not active.
2. Front washer working condition
The front washer functionality is directly available to the driver. It consists in activating the front washer pump, which is located under hood. As long as the driver activates the washer multifunction switch, the front washer is active.
3. Functional diagram
REAR WIPER AND WASHER
1. Rear wiper working conditions
- The rear wiper is available in RUN state.
- In the START state, all the wiper and washer outputs are halted and then activated again.
- In the OFF and ACC states, the rear wiper stops its movement at current position. The rear wiper will move to the park position at the next IGN ON. In these states, the rear washer is not activated.
2. Rear washer working condition
- If the washer signal is active less than 60 ms, the signal is neglected.
- If the washer signal is active for T1 (between 60 ms and 300 ms), the rear wiper output is turned on for T2 (2.5 - 3.8 sec.), T3 (300 ms) after the washer has been turned ON.
Rear washer activated for T1 : [60 ms;300 ms]
3. Functional diagram
DEFOG
This function controls the heating defog grids on windshield, rear glass, and rear view mirrors.
1. Working Conditions
The defog function can be activated only when engine is running and ignition key is in RUN position.
- When windshield defog switch is pushed, windshield defog is activated for 20 minutes.
- While windshield defog is on, the windshield defog button is illuminated
- If the switch is pushed again while defog is already active, defog stops.
- If the engine stops while defog is on, defog stops and it is NOT automatically turned on when the engine is started again
- Rear defog works exactly in the same way as windshield defog using the rear defog switch button as input.
- When rear defog is active, rear defog switch indicator is ON.
- Rear defog ctrl output controls rear glass defog as well as rear view mirrors defog.
2. Rear defog pause
- When IPM receives Tailgate Flasher CAN message, rear defog is inhibited for 30 s
- The 20 min rear defog timer is frozen during this pause.
- If the user turns on rear defog function while this pause is going on, Rear defog ctrl is set to ON only at the end of the pause.
- This pause has no impact on rear defog switch illumination.
- When IPM receives Tailgate open CAN message transition to OPEN value, this 30 s rear defog pause is also started, it works the same way as described above.
3. Functional Diagram