Description:

This diagnostic trouble code indicates that the ECU detected low resistance in the power supply output 2 circuit, which is lower than the sensor low voltage specification. Low resistance in this circuit typically suggests a short to ground, which can affect the proper functioning of the ECU and connected components.

Reaction:

The affected power supply circuit may experience issues, potentially leading to reduced performance or malfunction of connected sensors and components.

Recommendations:

• Inspect ECU Power Supply Wiring and Connections: Check for damaged, frayed, or loose wiring and connectors associated with the ECU power supply output 2 circuit. Repair or replace as necessary.
• Test ECU-J1 and ECU-J2 Connectors: Use diagnostic tools to test the ECU-J1 and ECU-J2 connectors for proper connection and functionality. Ensure that there are no issues with these connectors.
• Check for Short Circuits: Inspect the circuit for any points where wires may be touching ground, causing a short circuit. Repair or insulate as needed.
• Reprogram Control Units: If necessary, reprogram the control units to ensure proper functionality and synchronization.
• Reset ECU and Monitor System: After resolving the issue, reset the ECU to clear the fault code and monitor the system to ensure normal operation.

Note:

Maintaining proper electrical connections and resistance in the ECU power supply circuits is crucial for accurate sensor and component operation. Regular inspections and timely maintenance can help prevent electrical-related issues.