Dodge Nitro. Manual — part 257

Fig. 4: Front Left Audio Speaker Output Circuit Schematic
Courtesy of CHRYSLER LLC

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article.

2007 Dodge Nitro R/T

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

Diagnostic Test

1) INTERMITTENT CONDITION

Turn the ignition on, then off, and then on again.

With the scan tool, read Radio DTCs.

Does the scan tool display active: B1402-FRONT LEFT 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) (X201) LEFT FRONT SPEAKERS (+) CIRCUIT SHORTED TO VOLTAGE

Possible Causes

(X201) LEFT FRONT SPEAKERS (+) CIRCUIT SHORTED TO VOLTAGE
(X291) LEFT FRONT SPEAKERS (-) CIRCUIT SHORTED TO VOLTAGE
SPEAKER

2007 Dodge Nitro R/T

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

Fig. 5: Measuring For Voltage On (X201) Left Front Speakers (+) Circuit
Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the Radio harness connector.

Disconnect the Left Front Audio Speaker harness connector.

Turn the ignition on.

Measure for voltage on the (X201) Left Front Speakers (+) circuit.

Is the voltage above 10.0 volts?

Yes

Repair the (X201) Left Front Speakers (+) 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

No

Go to 3).

3) (X291) LEFT FRONT SPEAKERS (-) CIRCUIT SHORTED TO VOLTAGE

Fig. 6: Measuring For Voltage On (X291) Left Front Speakers (-) Circuit
Courtesy of CHRYSLER LLC

Measure for voltage on the (X291) Left Front Speakers (-) circuit.

Is the voltage above 10.0 volts?

Yes

Repair the (X291) Left Front Speakers (-) circuit for a short to voltage.

Perform BODY VERIFICATION TEST - VER 1 .

No

2007 Dodge Nitro R/T

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