Dodge Nitro. Manual — part 278

With the ignition on.

Set Condition:

The amplifier detects a shorted to ground condition on the speaker output circuit.

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 condition that caused this symptom is currently not present. Check for an intermittent
condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken
wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or
contaminated terminals. Repair as necessary.

Perform BODY VERIFICATION TEST - VER 1 .

2) CHECK THE (X202) AMPLIFIED RIGHT FRONT I/P SPEAKER (+) CIRCUIT FOR A
SHORT TO GROUND

Possible Causes

(X202) AMPLIFIED RIGHT FRONT I/P SPEAKER (+) CIRCUIT SHORTED TO GROUND
(X292) AMPLIFIED RIGHT FRONT I/P SPEAKER (-) CIRCUIT SHORTED TO GROUND
RIGHT FRONT I/P SPEAKER
AMPLIFIER

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Audio/Video Systems - Electrical Diagnostics - Nitro

Fig. 51: Measuring Resistance Between Ground And (X202) Amplified Right Front I/P Speaker (+)
Circuit
Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the Amplifier C2 harness connector.

Disconnect the Right Front I/P Speaker harness connector.

Measure the resistance between ground and the (X202) Amplified Right Front I/P Speaker (+) circuit.

Is the resistance below 10K ohms?

Yes

Repair the (X202) Amplified Right Front I/P Speaker (+) circuit for a short to ground.

Perform BODY VERIFICATION TEST - VER 1 .

No

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Audio/Video Systems - Electrical Diagnostics - Nitro

Go to 3).

3) CHECK THE (X292) AMPLIFIED RIGHT FRONT I/P SPEAKER (-) CIRCUIT FOR A
SHORT TO GROUND

Fig. 52: Measuring Resistance Between Ground And (X292) Amplified Right Front I/P Speaker (-)
Circuit
Courtesy of CHRYSLER LLC

Measure the resistance between ground and the (X292) Amplified Right Front I/P Speaker (-) circuit.

Is the resistance below 10K ohms?

Yes

Repair the (X292) Amplified Right Front I/P Speaker (-) for a short to ground.

Perform BODY VERIFICATION TEST - VER 1 .

No

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Audio/Video Systems - Electrical Diagnostics - Nitro

Go to 4).

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

Fig. 53: Measuring Resistance Of Speaker Circuit Between Amplifier C2 Harness Connector And
Ground
Courtesy of CHRYSLER LLC

Reconnect and reinstall the Right Front I/P Speaker.

Measure the resistance of the speaker circuit between the Amplifier C2 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 .

B1467-CHANNEL 2 AUDIO SPEAKER OUTPUT CIRCUIT HIGH

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Audio/Video Systems - Electrical Diagnostics - Nitro