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