Ford Fiesta ST Forums: headlight problem

Socket C417 on the GEM is the dipped beam relay, take it out and swap it for the high beam relay and see if the lights work.

Failing that it could be the indicator stalk has gone, though this is rare as they are quite reliable.

You can enter a diagnostic mode within the GEM but I don't know if it will help you.
This is for a face-lift ST if yours isn't facelift don't do it

A diagnosis of the generic electronic module (GEM) can be performed with the Ford diagnostic equipment. Furthermore, an integrated service mode enables testing of the input and output signals without the need for further tools. To enable activation of service mode:

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 indicate that service mode has been successfully activated.

Input signals

SWITCH the wiper switch to the "Off" position to test the input signals. The following is a list of the signals to be tested, in no particular order:

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 lamps flash to indicate receipt of each input signal by the generic electronic module.

Output signals

SWITCH the wiper switch to the "Intermittent" position to test the output signals. PRESS the heated rear window switch activates or deactivates the output signals in the following order:

Windshield wipers (a signal sounds and the direction indicator lamps flash when the "Park" position is reached)
Heated rear window
Interior light(s) (the interior light switch must be in the "ON" position)
Rear window wiper
heated windshield (if fitted, is only activated when engine is running)
If the heated rear window switch is operated again, the sequence restarts with point 'a' and the functions are activated again in this order.

Ending the service mode

The GEM automatically ends service mode 20 seconds after the last input. However, service mode can be manually ended at any time by proceeding as follows:

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 to indicate that service mode has ended.

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2011 Focus 3-door Zetec 1.6 TDCi.
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s - 2006 Panther Black & 2007 Red. Gone and quite forgotten