Test Drive After Disconnecting Battery
Information
Depending on the vehicle equipment fitted, all these work steps are carried out during the test drive.
Read out the fault memories of all control units after the test drive.
- If there is a fault present, check to see if the fault was caused by an undervoltage.
- If faults were caused by an undervoltage (or CAN timeout error), erase the fault memory, perform another test drive and read out the fault memory.
- If faults were not caused by an undervoltage, correct the faults in accordance with GFF (Guided Fault Finding).
Effects of overvoltage on electrical and electronic systems during welding work and the precautions to be taken
- Risk of damage to the generator and electronic control units
→ Disconnect and cover both battery terminals before starting welding work on the vehicle→ 270619 REMOVING AND INSTALLING BATTERY - section on "Removing".
→ Disconnect the airbag triggering unit from the vehicle electrical system by pulling off the connector before starting welding work→ 695319 REMOVING AND INSTALLING TRIGGERING UNIT FOR AIRBAG - section on "Removing".
→ Secure the ground strap as close as possible to the welding area during electric welding.
→ When you have finished, first install the airbag triggering unit, then connect the battery
→ 695319 REMOVING AND INSTALLING TRIGGERING UNIT FOR AIRBAG - section on "Installing" → 270619 REMOVING AND INSTALLING BATTERY - section on "Installing"→ 270619 REMOVING AND INSTALLING BATTERY - section on "Removing and installing".