2012 Jeep Wrangler JK Factory Service Manual 28 - DTC-Based Diagnostics

B1405-FRONT RIGHT AUDIO SPEAKER OUTPUT CIRCUIT LOW

B1405-FRONT RIGHT AUDIO SPEAKER OUTPUT CIRCUIT LOW



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


Theory of Operation

The (X202) Right Front Speaker (+) circuit and the (X292) Right Front Speaker (-) circuit are outputs of the Radio. The Radio controls and monitors these circuits for a concern.


Possible Causes

(X202) RIGHT FRONT DOOR SPEAKER (+) CIRCUIT SHORTED TO GROUND
(X292) RIGHT FRONT DOOR SPEAKER (-) CIRCUIT SHORTED TO GROUND
RIGHT FRONT SPEAKER
RIGHT FRONT TWEETER
RADIO

1. CHECK FOR AN INTERMITTENT CONDITION




NOTE: This vehicle has a Front Tweeter wired in parallel with the Front Speaker.
1. Turn the ignition on and open one of the front doors.

NOTE: A front door must remain open whenever checking or erasing Radio DTCs.
2. Using the scan tool, record and erase the Radio DTCs.
3. Turn the Radio on.
4. Adjust the speakers to the front and center.
5. Using the scan tool, read the active Radio DTCs.


Does the scan tool read: B1405-FRONT RIGHT AUDIO SPEAKER OUTPUT CIRCUIT LOW?

Yes


No


2. RIGHT FRONT SPEAKERS



1. Make sure one of the front doors is still open.
2. Using the scan tool, erase the DTCs.
3. Turn the ignition off.
4. Disconnect the Right Front Speaker harness connector from the Right Front Speaker.
5. Disconnect the Right Front Tweeter harness connector from the Right Front Tweeter.
6. Turn the ignition on.
7. Turn the radio on.
8. Using the scan tool, read the active Radio DTCs.


Does the scan tool read: B1405-FRONT RIGHT AUDIO SPEAKER OUTPUT CIRCUIT LOW?

Yes


No


3. RIGHT FRONT SPEAKER



1. Make sure one of the front doors is still open.
2. Using the scan tool, erase the DTCs.
3. Turn the ignition off.
4. Re-connect the Right Front Speaker harness connector to the Right Front Speaker.
5. Turn the ignition on.
6. Turn the radio on.
7. Using the scan tool, read the active Radio DTCs.


Does the scan tool read: B1405-FRONT Right AUDIO SPEAKER OUTPUT CIRCUIT LOW?

Yes


No


4. CHECK THE (X202) RIGHT FRONT DOOR SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND



1. Turn the ignition off.
2. Disconnect the Radio C2 harness connector.
3. Measure the resistance between ground and the (X202) Right Front Door Speaker (+) circuit.


Is the resistance below 5.0 Ohms?

Yes


No


5. CHECK THE (X292) RIGHT FRONT DOOR SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND



1. Measure the resistance between ground and the (X292) Right Front Door Speaker (-) circuit.


Is the resistance below 5.0 Ohms?

Yes


No