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Generic Electronic Module (GEM) General Equipment Ford diagnostic equipment Principles of Operation A diagnosis of the generic electronic module (GEM) • Switch off the ignition, • Switch off all other electrical consumers, • Apply the handbrake, • Shift to neutral • Close the doors. Activating the service mode Proceed as follows to activate the service mode: • OPERATE the switch of the heated rear window and HOLD IT THERE • Turn on the ignition. • RELEASE the switch of the heated rear window • PRESS the heated rear window switch 8 times within 6 seconds A signal sounds and the turn signal lamps flash to Input signals SWITCH the wiper switch to the "Off" position to • Turn signals (right, left, hazard warning lights) • "Lights on" warning (terminal 58) • Windshield wiper (intermittent wipe) • Windshield washer system • Rear window wiper • Rear window washer system • Doors/tailgate open/closed • Central locking • Hood open/closed (in vehicles equipped with an anti-theft alarm system) • Front fog switch (if fitted) • Rear fog switch • Heated rear window • Heated windscreen (if fitted) An acoustic signal sounds and the turn signal Output signals SWITCH the wiper switch to the "Intermittent" a. Windshield wipers (a signal sounds and the direction indicator lamps flash when the "Park" b. Heated rear window c. Interior light(s) (the interior light switch must be in the "ON" position) d. Rear window wiper e. heated windshield (if fitted, is only activated when engine is running) If the heated rear window switch is operated again, Ending the service mode The GEM automatically ends service mode 20 • OPERATE the switch of the heated rear window and HOLD IT THERE • SWITCH OFF the ignition • RELEASE the switch of the heated rear window 3 signals sound and the turn signal lamps illuminate Inspection and Verification 1. VERIFY customer concern. 2. Visually CHECK for any obvious mechanical or electrical damage. NOTE: Make sure that the wiring harness electrical Visual Inspection Electrical Fuses G509494en Multifunction Electronic Modules DIAGNOSIS AND TESTING 502-00- 9 502-00- 9 201 |