Collision Avoidance and Parking Assist Systems: Service Precautions
Control Modules, RTI
Always switch off the ignition before connecting and disconnecting control modules, connectors and the breakout box.
The ignition must be switched off when taking readings with an ohmmeter.
Temperature
The control modules must not be heated to above 80 degree C. Remove control modules when stoving for example.
Arc welding
Always disconnect the battery negative lead to prevent a short-circuit.
Position the welding ground as close to the welding site as possible, otherwise different ground potentials may be generated in different components.
When welding close to an electronic module, the unit must be removed to avoid heat damage.
Replacement
Do not replace a control module without checking its wiring and components. Otherwise the new component may be damaged in the same way as the old one.
Power supply RTI-control module
If the RTI control module power supply (30-supply) fails in some way, the control module is disconnected, the battery disconnected etc, certain data in the control module will be erased after a certain period of time. This means that the control module then assumes certain predetermined values the next time the system is activated. When the control module is reconnected certain values should be reset.
Radio
NOTE: Remember that if the car has no voltage, the anti-theft radio code must be activated.
Check that the customer has provided the radio code.
Alarm
When replacing the battery on cars equipped with the VGLA alarm, the siren does not need to be disconnected.