For a complete wiring diagram, refer to the Wiring Information.
Theory of Operation
The (X201) Left Front Speaker (+) circuit and the (X291) Left Front Speaker (-) circuit are outputs of the Radio. The Radio controls and monitors these circuits for a concern.
When Monitored:
With the Radio on.
Set Condition:
The Radio detects a short to ground condition on the speaker output circuit.
Possible Causes
(X201) LEFT FRONT SPEAKER (+) CIRCUIT SHORTED TO GROUND
(X291) LEFT FRONT SPEAKER (-) CIRCUIT SHORTED TO GROUND
LEFT FRONT SPEAKER
LEFT 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.
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: B1401-FRONT LEFT AUDIO SPEAKER OUTPUT CIRCUIT LOW?
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.
