Dodge Nitro. Manual — part 274

Go to 4).

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

Fig. 40: Measuring Resistance Of Speaker Circuit Between Amplifier C2 Harness Connector And
Ground
Courtesy of CHRYSLER LLC

Reconnect and reinstall the Left 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 Left 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 .

B1462-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT HIGH

2007 Dodge Nitro R/T

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

Fig. 41: Channel 1 Audio Speaker Output Circuit Schematic
Courtesy of CHRYSLER LLC

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article.

When Monitored:

2007 Dodge Nitro R/T

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

With the ignition on.

Set Condition:

The amplifier detects a short to battery condition on the 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: B1462-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT
HIGH?

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 FOR VOLTAGE ON THE (X201) AMPLIFIED LEFT I/P SPEAKER (+) CIRCUIT

Possible Causes

(X201) AMPLIFIED LEFT I/P SPEAKER (+) CIRCUIT SHORT TO VOLTAGE
(X291) AMPLIFIED LEFT I/P SPEAKER (-) CIRCUIT SHORT TO VOLTAGE
AMPLIFIER

2007 Dodge Nitro R/T

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

Fig. 42: Measuring For Voltage On (X201) Amplified Left I/P Speaker (+) Circuit
Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the Amplifier C2 harness connector.

Disconnect the Amplified Left I/P Speaker harness connector.

Turn the ignition on.

Measure for voltage on the (X201) Amplified Left I/P Speaker (+) circuit.

Is the voltage above 10.0 volts?

Yes

Repair the (X201) Amplified Left I/P Speaker (+) circuit for a short to voltage.

Perform BODY VERIFICATION TEST - VER 1 .

2007 Dodge Nitro R/T

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