B2460 – OBD-II DTC

OBD-II DTC B2460 – Aux Heater Flame Sensor Circuit Short to Ground

DTC B2460 meaning

DTC B2460 refers to a diagnostic trouble code indicating a short circuit to ground in the auxiliary heater flame sensor circuit. This code is specific to the vehicle’s onboard diagnostics system and is related to the operation of the auxiliary heater, which is used to provide additional heating in the vehicle’s cabin or for engine pre-heating. The flame sensor is crucial for detecting the presence of a flame in the heater, ensuring safe operation.

DTC B2460 symptoms

Common symptoms associated with DTC B2460 may include:

• Inoperative auxiliary heater
• Increased cabin heating time
• Check Engine Light (CEL) illuminated
• Possible engine performance issues
• Unusual noises from the auxiliary heater

DTC B2460 causes

Several factors can lead to the triggering of DTC B2460, including:

• Faulty flame sensor
• Wiring issues, such as damaged or frayed wires
• Corrosion or poor connections in the circuit
• Short circuit in the auxiliary heater system
• Faulty auxiliary heater control module

DTC B2460 seriousness

The seriousness of DTC B2460 can vary based on the vehicle’s use and the climate conditions. While it may not cause immediate safety concerns, it can lead to:

• Reduced heating efficiency
• Increased wear on the engine due to inadequate heating
• Potential for further electrical issues if left unaddressed

It is advisable to diagnose and repair the issue promptly to maintain optimal vehicle performance.

How to diagnose DTC B2460

To diagnose DTC B2460, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC B2460.
2. Inspect the wiring and connectors related to the auxiliary heater flame sensor for damage or corrosion.
3. Test the flame sensor for proper operation using a multimeter.
4. Check for any additional DTCs that may provide more context to the issue.
5. Examine the auxiliary heater control module for faults.

How to fix DTC B2460 step-by-step instructions

To fix DTC B2460, follow these steps:

1. Clear the DTC using an OBD-II scanner.
2. Inspect and repair any damaged wiring or connectors in the flame sensor circuit.
3. Replace the flame sensor if it is found to be faulty.
4. Test the auxiliary heater control module and replace it if necessary.
5. Recheck the system for any remaining DTCs after repairs.
6. Perform a functional test of the auxiliary heater to ensure proper operation.

How to erase DTC B2460

To erase DTC B2460, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the vehicle’s ignition without starting the engine.
3. Navigate to the DTC menu on the scanner.
4. Select the option to erase or clear the trouble codes.
5. Confirm the action and wait for the scanner to indicate that the codes have been cleared.
6. Disconnect the scanner and start the vehicle to ensure the DTC does not reappear.

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