B1461

B1461 - Channel 1 Audio Speaker Output Circuit Low






For a complete wiring diagram, refer to.

• When Monitored: With the ignition on.

• Set Condition: The amplifier detects a short to ground on the speaker output circuit.

•






Test Step 1 - Check for an Intermittent Condition

• Turn the ignition ON, then OFF, and then ON again.

• With the scan tool, read amplifier DTCs.

Does the scan tool display B1461 - Channel 1 Audio Speaker Output Circuit Low?

Yes

• Go to Test Step 2.

No

• The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 2 - Check the Amplified LF I/P Speaker (+) Circuit for a Short to Ground







• Disconnect the amplifier C2 harness connector.

• Measure the resistance between ground and the amplified left front I/P speaker (+) circuit.

Is the resistance less than 10K ohms?

Yes

• Repair the amplified left front I/P speaker (+) circuit for a short to ground.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Go to Test Step 3.

Test Step 3 - Check the Amplified LF I/P Speaker (-) Circuit for a Short to Ground







• Measure the resistance between ground and the amplified left front I/P speaker (-) circuit.

Is the resistance less than 10K ohms?

Yes

• Repair the amplified left front I/P speaker (-) for a short to ground.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Go to Test Step 4.

Test Step 4 - Check the Operation of the Amplified LF I/P Speaker







• Turn the ignition OFF.

• Reconnect and reinstall the left front I/P speaker.

• Measure the resistance of the speaker circuit between the amplifier C2 harness connector and ground.

Is the resistance less than 10K ohms?

Yes

• Replace the left front I/P speaker.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Replace the amplifier.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior