2007 Compass Patriot MK Factory Service Manual 8 - ELECTRICAL

B1466-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT LOW

For a complete wiring diagram Refer to Section 8W.

When Monitored:
With the ignition on.
Set Condition:
The amplifier detects a shorted to ground condition on the speaker output circuit.

Possible Causes

(X208) AMPLIFIED RIGHT FRONT I/P SPEAKER (+) CIRCUIT SHORTED TO GROUND

(X298) AMPLIFIED RIGHT FRONT I/P SPEAKER (-) CIRCUIT SHORTED TO GROUND

RIGHT FRONT I/P SPEAKER

Diagnostic Test

1. CHECK FOR AN INTERMITTENT CONDITION

Turn the ignition on, then off, and then on again.
With the scan tool, read Amplifier DTCs.

Does the scan tool display active: B1466-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT LOW?

Yes

Go To 2

No

The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST VER-1.

2. CHECK THE (X208) AMPLIFIED RIGHT FRONT I/P SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND

Disconnect the Amplifier C1 harness connector.
Disconnect the Right Front I/P Speaker harness connector.
Measure the resistance between ground and the (X208) Amplified Right Front I/P Speaker (+) circuit.

Is the resistance below 10K ohms?

Yes

Repair the (X208) Amplified Right Front I/P Speaker (+) circuit for a short to ground.
Perform BODY VERIFICATION TEST VER-1.

No

Go To 3

3. CHECK THE (X298) AMPLIFIED RIGHT FRONT I/P SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND

Measure the resistance between ground and the (X298) Amplified Right Front I/P Speaker (-) circuit.

Is the resistance below 10K ohms?

Yes

Repair the (X298) Amplified Right Front I/P Speaker (-) for a short to ground.
Perform BODY VERIFICATION TEST VER-1.

No

Go To 4

4. CHECK OPERATION OF THE AMPLIFIED RIGHT FRONT I/P SPEAKER

Turn the ignition off.
Reconnect and reinstall the Right Front I/P Speaker.
Measure the resistance of the speaker circuit between the Amplifier C1 harness connector and ground.

Is the resistance below 10K ohms?

Yes

Replace the Right Front I/P Speaker in accordance with the service information.
Perform BODY VERIFICATION TEST VER-1.

No

Replace the amplifier in accordance with the service information.
Perform BODY VERIFICATION TEST VER-1.