The error code ETC 522343.19 is triggered when the output for switching resistor (R17; for heated rear window) is energized by more than one control unit. This indicates a conflict in the control signals being sent to the heated rear window resistor.

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The error code ETC 522343.12 is triggered when the power module (HF) PC6 measures in excess of 1 amp at the output of resistor (R17; for heated rear window) (lead 2031) while the rear window heater is switched off. This indicates a short in the circuit or an internal fault in the power module.

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The error code ETC 522343.09 is generated when there is a problem transferring data between the power module (HF) PC6 and the ETC control unit. Reception of one, several, or all of the CAN messages transmitted by the ETC to the power module (HF) PC6 is intermittent or nonexistent, which could be due to a…

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The error code ETC 522343.05 is triggered when the power module (HF) PC6 measures less than 350 mA at the output of resistor (R17; for heated rear window) (lead 2031) while the rear window heater is switched on. This indicates that the circuit is open.

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The error code ETC 522343.04 is triggered when the power module (HF) PC6 measures a current in excess of 30 amps in lead 2031 while the rear window heater is switched on. This indicates a short to ground in the circuit.

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The error code ETC 522343.01 is generated when the power module (HF) PC6 measures less than 3 volts at the supply voltage for the rear window heater output (lead 0742) when the rear window heater is switched on. This indicates a power supply fault in the circuit.

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The error code ETC 522343.00 is triggered when the power module (HF) PC6 measures an amperage in excess of 40 amps at the output for the heated rear window resistor (R17). This indicates that the circuit is shorted to ground or there is a defective component in the circuit.

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The error code ETC 002156.09 is generated when there is a problem transferring data between the power module (HF) PC6 and the ETC control unit. Reception of one, several, or all of the CAN messages transmitted by the power module (HF) PC6 is intermittent or nonexistent, which could be due to a loose wire or…

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The error code ETC 002000.09 is generated when there is a data transfer problem between the ECU and ETC regarding coolant temperature. Reception of the CAN message about coolant temperature is intermittent or nonexistent, which could be due to a loose wire or other communication issues.

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The error code ETC 001553.04 is triggered when the control unit measures 0 volts at the signal input of the fan speed control. This indicates a short to ground in the internal circuit of the control unit.

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The error code ETC 001553.03 is triggered when the control unit measures a voltage in excess of 5 volts at the signal input of the fan speed control. This indicates that the internal circuit of the control unit is shorted to a supply lead or is open.

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