Esp switch
• The ESP switch deactivates the ESP and TCS functions. The ESP switch is located on the dash board of driver side. The system is generally active after each new start and is only deactivated by actuating the ESP switch.
• This facilitates
- rocking to free the vehicle in deep snow or loose surface material - driving with snow chains - operation of the vehicle on a brake test bench
• The ABS function is fully maintained.
• With the ESP switch, the ESP system can only be deactivated when the vehicle is stationary or traveling at low speed. The system cannot be deactivated while an ESP intervention is in progress.
8. Outputs warning lamp control
a) EBD warning lamp control
The active EBD warning lamp module indicates the self-test and failure status of the EBD. However, in case the Parking Brake Switch is turned on, the EBD warning lamp is always turned on regardless of EBD functions.
The EBD warning lamp shall be on:
During the initialization phase after IGN ON. (continuously 3 seconds)
When the Parking Brake Switch is ON or brake fluid level is low
When the EBD function is out of order
During diagnostic mode
When the ECU Connector is seperated from ECU.
b) ABS warning lamp control
The active ABS warning lamp module indicates the self-test and failure status of the ABS. The ABS warning lamp shall be on:
During the initialization phase after IGN ON. (continuously 3 seconds)
In the event of inhibition of ABS functions by failure
During diagnostic mode
When the ECU Connector is seperated from ECU.
c) TCS/ESP OFF warning lamp control
The TCS/ ESP warning lamp indicates the self-test and failure status of the TCS/ESP. The TCS/ ESP warning lamp is turned on under the following conditions:
Ring the initialization phase after IGN ON. (continuously 3 seconds)
In the event of inhibition of TCS/ESP functions by failure
When driver turns off the TCS/ESP function by on/off switch
During diagnostic mode
d) TCS/ESP function lamp control
The TCS/ESP function lamp indicates the self-test and operating status of the TCS/ESP. The ESP warning lamp lights up briefly when the ignition is turned on and is extinguished as soon as the peripherals have been checked. During an ESP/TCS control cycle, the ESP function lamp flashes to show the driver that the system is active and that the vehicle is at the limit of its physical capabilities. Detection of the fault in the ESP system causes the ESP warning lamp to light up and remain on. The ESP system is then inactive, the ABS function is fully maintained.
The TCS/ ESP Function lamp operates under the following conditions :
During the initialization phase after IGN ON. (continuously 3 seconds)
When the TCS/ESP control is operating. (Blinking - 2Hz)