ECU - Headlight - Remove
Remove
Raise and support the vehicle. See Raise Vehicle - 2 Post Lift.
Remove the rear underhood apron. See Underhood Apron - Rear (Remove and
Replace).
Remove the cab
Remove
Use Toolbox to put the vehicle into Factory Mode.
Invoke diagnostics on the touchscreen.
Inspect the Notifications for either a BMS_a123 or a BMS_W123 alert.
If:
Either alert is present - Contact Service Engineering. Do not perform
this procedure.
Neither alert is present - Continu