Focus ZTS L4-2.0L DOHC VIN 3 (2001)
General Module: Description and Operation
Central Timer Module (CTM)
Central Timer Module (CTM)
This module has two versions:
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a standard version for vehicles with manual transmission
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an extended version for vehicles with automatic transmission
Functions of the CTM standard version:
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Intermittent wiper, front
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Intermittent wiper, rear
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Rear window washer with wiper function
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Front windscreen washer with wiper function
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Heated rear window
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Heated windscreen
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Entry Illumination
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Power saving relay
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Required acoustic signal from trip computer module, anti-theft warning system/double locking module and airbag module
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Lights-on Warning Chime Unit Additional functions of the CTM extended version:
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Safety belt warning
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Reverse gear warning
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Ignition key warning
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Warning - shift lever not in park position
Intermittent wiper, front
If the wiper control switch is switched to Intermittent position while the ignition is on, then the wipers will operate at fixed intervals (8.0 ± 2.0
seconds). In the case of vehicles with variable delay units, the time between wipe operations can be set from "1" to "6" (1.0 - 22.0 seconds)
using the potentiometer on the multi-function switch. The intermittent wipe operation mode periodically repeats until the Intermittent switch
setting is turned off. If the potentiometer is used to change the delay time during intermittent mode, then the wiper cycle is completed before the
new delay time takes effect. If the switch is turned off and on again during the wiper interval, then intermittent mode immediately begins again at
the delay time set. The CTM sends respective ground pulses to the front windscreen wiper relay, whereupon the relay activates the front
windscreen wiper motor.
Intermittent wiper, rear
If the rear wiper control switch is switched on while the ignition is on, then the rear wipers will operate at fixed intervals (12.0 ± 3.0 seconds).
After every completed wiper operation and delay time, the CTM sends a pulse (0.6 ± 0.2 seconds) to the rear wiper relay. The rear wiper motor is
switched off by its own limit switch.
Rear window washer with wiper function
If the rear window washer switch is operated, the washer pump and the rear window wiper are switched on. If the rear window washer switch is
released, the
washer pump is immediately switched off. The run-on time for the rear wiper is (4.0 s ± 1.0 s). The duration of the ground pulse for the rear wiper
