Description:

This fault code occurs when the sixth sensor supply voltage in the ECU circuit exceeds its specified range, likely due to a short to a 12-volt source. This over-voltage condition can potentially damage sensors and disrupt their normal functioning, affecting vehicle monitoring and control systems.

Reaction:

The ECU may disable affected sensors to protect them from damage due to high voltage, leading to limited functionality or reliance on fallback operational modes.

Recommendations:

• Inspect Circuit for High Voltage Sources: Check the sensor supply circuit for unintended connections to higher voltage lines.
• Measure and Verify Voltage Levels: Use a multimeter to assess the voltage output to the sensors, confirming if it indeed surpasses the normal range.
• Isolate and Repair Shorts: Identify and rectify any shorts causing the elevated voltage, possibly involving replacement of wires or connectors.
• Reset ECU and Re-calibrate Sensors: After correcting the voltage issue, reset the ECU to ensure it properly processes the corrected sensor inputs. Re-calibrate sensors as needed and verify their operation under normal conditions.

Note:

Ensuring that sensor supply voltages are within specified limits is crucial to prevent hardware damage and ensure accurate system operations.