Beats

B14C8-12-CHANNEL 12 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO BATTERY - BEATS

For a complete wiring diagram, refer to the Wiring Information.

NOTE: There are two versions of the B14C8-12 DTC test. In order to select the proper test you must know if the vehicle is equipped with the Beats by Dr Dre Audio sound system. If the vehicle is equipped with the BEATS system use the B14C8-12-BEATS test. If the vehicle is not equipped with the BEATS system use the B14C8-12-PREMIUM test.

Theory of Operation

The (X301) Subwoofer 2 (+) circuit and the (X391) Subwoofer 2 (-) circuit are outputs of the Amplifier.The Amplifier controls and monitors these circuits for a concern when the ignition is cycled on.

For a detailed description of the Audio System. Audio And Video - Description.

For additional information regarding the operation of the Audio System. Audio And Video - Operation.

- When Monitored:
When the ignition is cycled on.

- Set Condition:
The Amplifier detects a short to battery condition on the speaker output circuit when the ignition is cycled on.





1. CHECK FOR AN INTERMITTENT CONDITION
1. Turn the ignition on and open one of the front doors.

NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs.

2. With the scan tool, record and erase the Amplifier DTCs.
3. Cycle the ignition switch from on to off, wait five seconds and then back to on.
4. Turn the Radio on.
5. Adjust the speakers to the rear and center.
6. With the scan tool, read the active Amplifier DTCs.

Does the scan tool display active: B14C8-12-CHANNEL 12 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO BATTERY?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. CHECK FOR VOLTAGE ON THE (X301) AMPLIFIED SUBWOOFER 2 (+) CIRCUIT




1. Turn the ignition off.
2. Disconnect the Amplifier C2 harness connector.
3. Disconnect the Subwoofer Speaker harness connector.
4. Turn the ignition on.
5. Measure the voltage between the (X301) Subwoofer Speaker 2 (+) circuit and ground.

Is there any voltage present?

Yes

- Repair the (X301) Subwoofer Speaker 2 (+) circuit for a short to voltage.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. CHECK FOR VOLTAGE ON THE (X391) AMPLIFIED SUBWOOFER 2 (-) CIRCUIT




1. Measure the voltage between the (X391) Subwoofer Speaker 2 (-) circuit and ground.

Is there any voltage present?

Yes

- Repair the (X391) Subwoofer Speaker 2 (-) circuit for a short to voltage.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Amplifier. Amplifier - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.