The error code, ATC 523848.03, is triggered when the control unit measures a voltage exceeding 5 volts at the signal input for the potentiometer, which is part of the adjusting motor (B132) for air distribution (lead 2017). This abnormal voltage level typically suggests that the circuit is either shorted to a supply lead or is…

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The error code, ATC 522343.19, is triggered when the output for controlling the resistor (R17) of the heated rear window is energized by more than one control unit. This indicates a conflict in the control signals being sent through the CAN BUS, which can lead to improper operation or malfunction of the heated rear window…

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The error code, ATC 522343.12, is triggered when the power module (HF) PC6 measures a current exceeding 1 amp at the output for the heated rear window’s resistor (R17) on lead 2031, despite the rear window heater being switched off. This unusual current flow typically indicates a short in the circuit or an internal fault…

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The error code, ATC 522343.05, is triggered when the power module (HF) PC6 measures less than 350 mA at the output for the heated rear window’s resistor (R17) on lead 2031 while the heater is activated. This low current reading usually indicates that the circuit is open, which may be due to a break in…

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The error code, ATC 522343.04, is triggered when the power module (HF) PC6 measures a current in excess of 30 amps at lead 2031 while the rear window heater is activated. This unusually high current typically indicates a short to ground in the circuit, which can lead to excessive power consumption and potential overheating, risking…

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The error code, ATC 522343.01, is generated when the power module (HF) PC6 measures less than 3 volts at the supply voltage for the heated rear window output (lead 0742) while the rear window heater is switched on. This low voltage indicates a power supply fault, which could stem from issues such as inadequate voltage…

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The error code, ATC 522343.00, is triggered when the power module (HF) PC6 measures an amperage exceeding 40 amps at the output for the heated rear window resistor (R17). This excessive current usually indicates that the circuit is shorted to ground or there is a defective component within the circuit, potentially leading to overheating and…

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The error code, ATC 002156.09, is generated due to data transfer issues between the power module (HF) PC6 and the Automatic Temperature Control (ATC) unit. This problem involves intermittent or nonexistent reception of one or more CAN messages transmitted by the power module (HF) PC6. Such issues could be caused by loose wires or connectivity…

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The error code, ATC 002000.09, is triggered when there is a data transfer problem between the Engine Control Unit (ECU) and the Automatic Temperature Control (ATC) system. This issue involves the intermittent or nonexistent reception of the CAN message that communicates the coolant temperature. Such reception problems could be due to a loose wire or…

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The error code, ATC 001553.04, is triggered when the control unit measures 0 volts at the signal input for the fan speed control. This condition generally indicates a short to ground within the internal circuit of the control unit, which can prevent the fan speed control from functioning properly. This fault can lead to an…

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