The diagnostic trouble code BCU 523703.03 is activated when the basic control unit (BCU) detects an abnormally high voltage, above 4.75 volts, at the signal input of the right draft sensor during calibration. Such a high voltage reading typically indicates a malfunction within the draft sensor circuit, which could be caused by issues such as…

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Diagnostic trouble code BCU 523703.02 is triggered when the basic control unit (BCU) detects a distorted signal characterized by a voltage variation exceeding 0.5 volts at the signal input of the right draft sensor during calibration. This condition suggests a malfunction within the draft sensor circuit, which may be caused by issues such as faulty…

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Diagnostic trouble code BCU 523702.31 is generated when there is an issue with the reception of the Vehicle Identification Number (VIN) by the Body Control Unit (BCU). This situation occurs either when the VIN is not received at all, or when it is incorrectly received, suggesting a problem with data transmission or erroneous VIN configuration…

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The diagnostic trouble code BCU 523702.14 is generated when the vehicle identification number (VIN) security function within the Body Control Unit (BCU) is deactivated. This deactivation typically occurs due to an internal problem, specifically pointing to incorrect reprogramming of the control unit. Such an issue can compromise the security and integrity of the vehicle’s identification…

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The diagnostic trouble code BCU 523701.06 is triggered when the Body Control Unit (BCU) detects an unusually high current in leads 7054 and 7055, which supply the stepper motor for the hitch (coil 2). This high current condition typically indicates a short to ground in the circuit, potentially leading to overheating, damage to the stepper…

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The diagnostic trouble code BCU 523701.05 is generated when the Body Control Unit (BCU) detects abnormally high voltage at the output to the stepper motor for the hitch (coil 2), specifically in leads 7054 and 7055. This high voltage reading is indicative of an open circuit in the wiring or connections, preventing normal operation of…

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Diagnostic trouble code BCU 523692.12 is activated when the power module PC0 measures a current exceeding 1 amp in lead 1029, which is designated for the upper worklights on the cab frame, even though these lights are switched off. This condition generally indicates a short in the circuit or an internal fault within the power…

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Error code BCU 523692.09 is triggered when there is an issue with data transfer between the power module PC0 and the Body Control Unit (BCU). This involves intermittent or non-existent reception of one or more CAN bus messages transmitted by the BCU to power module PC0, which controls the upper worklights on the cab frame.…

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Error code BCU 523692.05 is triggered when the power module PC0 detects a current of less than 500 mA in lead 1029, intended for the upper worklights on the cab frame (E35), while these lights are switched on. This low current measurement typically indicates an open circuit, suggesting a disconnection or break somewhere within the…

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The diagnostic trouble code BCU 523692.04 is activated when the power module PC0 detects an excessive current of more than 15 amps in lead 1029, which powers the upper worklights on the cab frame. This high current measurement is typically indicative of a short to ground within the circuit, a condition that can lead to…

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Error code BCU 523692.01 is triggered when the power module PC0 measures a supply voltage of less than 3 volts at lead 0792, which is intended for the upper worklights on the cab frame, when these lights are activated. This low voltage measurement indicates a power supply fault, possibly due to issues such as insufficient…

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