Sprinter 3500 L5-2.7L DSL Turbo (2004)
Heated Glass Element Switch: Description and Operation
Rear Window Defogger Switch
The rear window defogger switch is mounted in the instrument panel to the right of the steering wheel. The rear window defogger switch contains a
yellow indicator lamp that illuminates when the rear window defogger (EBL) system is activated.
The rear window defogger switch and the defogger switch indicator cannot be repaired and, if faulty or damaged, the rear window defogger switch must
be replaced.
A yellow indicator lamp will illuminate when the rear window defogger switch is activated. The switch energizes the timing circuit of the rear window
defogger module which then activates the rear window defogger (EBL) relays. The EBL relays controls the current flow to the rear window defogger
grids. The EBL system will operate for approximately five minutes or until the rear window defogger switch or ignition switch is turned off for
diagnosis and testing of the rear window defogger switch.
The rear window defogger switch cannot be repaired and, if faulty or damaged, it must be replaced.
