XC60 FWD L6-3.2L VIN 96 B6324S2 (2010)
This information enables the headlamp control module (HCM) to calculate the current turn-out of the light beam.
Tourist mode / Adjusting light beam pattern
Tourist mode is an adjustment of the light distribution pattern which prevents dazzling oncoming traffic when driving abroad.
Via the menu system in Infotainment control module (ICM) (3/281), it is possible to adjust the light beam pattern that is relevant as well as reset the
headlamps' light beam pattern for right or left-hand traffic.
To enable adjusting the light beam pattern the vehicle must be at a standstill with the engine running.
Lighting Bi-Xenon lamps
There is normally a 3 second delay between activation with the light switch or ignition on and the Bi-Xenon lamp coming on.
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As with normal headlamps, Bi-Xenon lamps remain off while the engine is cranking and come on once the engine is running.
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Each time voltage is supplied to the high voltage unit (from the central electronic module (CEM)), 3 1-second attempts are made to light the
Bi-Xenon lamp.
Safety
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In the event of a short-circuit on the high tension side the power supply cuts in less than 10 ms
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If the high voltage circuit is broken (such as due to an open circuit, defective bulb or no bulb in the lamp socket), during each activation the system
attempts to light the lamp for a period of 700 ms. During the period, there is high voltage across the high voltage unit.
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Approximate component temperatures during operation: High voltage unit= 130 °C, Bulb holder = 170 °C, Bi-Xenon-bulb= 400 °C.
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The glass body of the Bi-Xenon-lamp is filled with different gases and metal vapors which are under pressure. The lamp can explode as it is under
gas pressure.
Warning!
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Follow the safety instructions and recommendations in VIDA carefully when working with high voltage.
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Use safety goggles when handling the bulb. Risk of explosion!
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The electrical system must be turned off before starting work.
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Risk of burn injury. The components operate at very high temperatures.
Diagnostic Functions
Diagnostic functions
General
The control module has a built-in diagnostic system, Volvo Diagnostic, which continuously monitors internal functions as well as input and output
signals.
Diagnostic trouble codes (DTCs)
A diagnostic trouble code (DTC) is stored if the control module detects a fault. A fault which is detected in the most recent operating cycle is defined as
permanent. Other faults which are detected are defined as intermittent. An operating cycle involves ignition on and off.
Reading and erasing diagnostic trouble codes (DTCs)
Stored diagnostic trouble codes (DTCs) can be read off and erased using this function.
Diagnostic trouble codes (DTCs) can only be erased once all the diagnostic trouble codes (DTCs) have been read off at least once.
Reading off input and output signals
This function can be used to continuously read off the status of the control module's input and output signals.
For more information about parameters, see Vehicle communication information in Specifications, other.
Activating components
This function can be used to activate components to check that they are working.
For more information on activations, see Vehicle communication information under Specifications, other.
Reading off the control module identification
The diagnostic tool identifies control modules by reading off a number of codes from the control module memory.
The codes contain the following information about the control module:
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hardware P/N (control module without software)
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hardware serial number (control module without software)
