B14B9-2B

B14B9-2B-CHANNEL 9 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER





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

Theory of Operation

The (X200) Center Instrument Panel (I/P) Speaker (+) circuit and the (X290) Center Instrument Panel (I/P) Speaker (-) 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 that the output circuits are shorted together 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. Using 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 front and center.
6. Using the scan tool, read the active Amplifier DTCs.

Does the scan tool display active: B14B9-2B-CHANNEL 9 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER?

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 THE OPERATION OF THE AMPLIFIED CENTER I/P SPEAKER




1. Turn the ignition off.
2. Disconnect the Center I/P Speaker harness connector.
3. Measure the resistance of the speaker between the two terminals.

NOTE: The graphic shows the connector for reference only. Measure at the speaker terminals.

Is the resistance of the speaker less than 1 Ohm?

Yes

- Replace the Center I/P Speaker. Instrument Panel
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. CHECK THE (X200) AMPLIFIED CENTER I/P SPEAKER (+) CIRCUIT, AND THE (X290) AMPLIFIED CENTER I/P SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER




1. Disconnect the Amplifier C1 harness connector.
2. Measure the resistance between the (X200) Center I/P Speaker (+) circuit and the (X290) Center I/P Speaker (-) circuit.

Is the resistance below 10K Ohms?

Yes

- Repair the (X200) Center I/P Speaker (+) circuit for a short to the (X290) Center I/P Speaker (-) circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

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