This diagnostic trouble code, AIC 521132.31, occurs when the CommandQuad™ transmission system detects a fault with range switch C, causing it and potentially other switches to be read as simultaneously pressed. This issue may be due to a mechanical defect causing the switch to stick, or an electrical problem such as a short circuit that…

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This error code, AIC 521132.02, is triggered by a malfunction within the CommandQuad™ transmission range switch C, where the ON and OFF contacts are registering the same value simultaneously. This anomaly suggests a failure in the switch’s mechanism or an electrical issue within its circuit, leading to incorrect or ambiguous gear selection signals.

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This error code, AIC 521128.31, signals a conflict within the CommandQuad™ transmission system, specifically involving the range switch CDE. The fault is identified when multiple range switches are erroneously read as being pressed simultaneously, which can lead to incorrect gear selection signals and potentially unsafe transmission responses.

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This error code, AIC 521128.08, arises when a fault is detected in the CommandQuad™ transmission range switch BCDE, specifically indicating that the switch may be stuck. This malfunction suggests that the switch is not returning to its default (unpressed) position as expected, which can disrupt normal transmission operations and signal interpretation.

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This error code, AIC 521128.02, is activated when there is a conflict detected in the CommandQuad™ transmission range switch BCDE, where the ON and OFF contacts register the same value. This condition typically indicates a malfunction within the switch circuit, such as a short or a wiring issue, which prevents the control unit from distinguishing…

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This code, AIC 520872.02, flags a critical issue within the Armrest Interface Control Unit (AIC) involving a calibration fault or a failure in the calibration memory. This problem can arise from corrupted calibration data or hardware malfunctions within the unit’s memory storage system, impairing the AIC’s ability to accurately maintain and apply operational settings.

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This error code, AIC 520871.02, indicates a fault within the internal module (EEPROM) of the Armrest Interface Control Unit (AIC), specifically during the process of reading data. This type of error typically suggests issues such as data corruption, EEPROM wear, or electronic failure, which prevent the control software from accessing vital configuration and operation data…

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This code, AIC 520870.02, indicates a significant issue with the Armrest Interface Control Unit (AIC), specifically a calibration fault or failure in the calibration memory. This problem can arise from corrupt data, software malfunctions, or hardware failures that affect the unit’s ability to store and retrieve calibration settings accurately.

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This error code, AIC 520543.04, is triggered when the Armrest Interface Control Unit (AIC) detects that the voltage in the vehicle’s CAN Bus Low (CAN-) circuit is below the normal range. This typically indicates a short to ground. Such a fault can disrupt the integrity of data transmission across the vehicle’s CAN Bus system, leading…

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This diagnostic code, AIC 520542.03, occurs when the Armrest Interface Control Unit (AIC) detects that the voltage in the vehicle’s CAN Bus High (CAN+) circuit is abnormally high, suggesting a possible short to a 12V source. Such a condition often results from faulty wiring or a malfunction in connected devices, which can interrupt the normal…

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This error code, AIC 520426.07, is set off when the error counter on the vehicle’s Controller Area Network (CAN) Bus exceeds acceptable limits. This typically points to ongoing communication issues within the CAN Bus system, which may be due to electrical interferences, degraded cables, defective connections, or improperly configured network devices. These errors can disrupt…

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