B1401

B1401 - Left Front Audio Speaker Output Circuit Low






For a complete wiring diagram, refer to.

• When Monitored: With the radio on.

• Set Condition: When the output circuit is low for more than 3 seconds.






Test Step 1 - Check for an Intermittent Condition

• Turn the ignition ON.

• With the scan tool, clear all audio DTCs.

• Turn the radio ON.

• With the scan tool, check for any DTCs.

Does the scan tool display B1401 - Front Left Audio Speaker Output Circuit Low?

Yes

• Go to Test Step 2.

No

• The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.

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

Test Step 2 - Speaker Output Circuits

• Turn the ignition OFF.

• Disconnect the radio C1 harness connector.

• Disconnect the speaker connector.

• Measure the resistance between ground and each speaker circuit.

Is the resistance less than 10K ohms for each circuit?

Yes

• Repair the circuit for a short to ground condition.

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

No

• Go to Test Step 3.

Test Step 3 - Speaker Performance

• Turn the ignition OFF.

• Disconnect the speaker.

• Turn the ignition ON.

• Turn the radio ON.

• Clear all audio DTCs.

• Check the DTC information.

Does the scan tool display B1401 - Left Front Audio Speaker Output Circuit Low?

Yes

• Replace the speaker.

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

No

• Test complete.

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