Dodge Nitro. Manual — part 284

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: B146C-CHANNEL 3 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 (X209) AMPLIFIED LEFT FRONT SPEAKER (+)
CIRCUIT

Possible Causes

(X209) AMPLIFIED LEFT FRONT SPEAKER (+) CIRCUIT SHORT TO VOLTAGE
(X299) AMPLIFIED LEFT FRONT SPEAKER (-) CIRCUIT SHORT TO VOLTAGE
AMPLIFIER

2007 Dodge Nitro R/T

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

Fig. 67: Measuring For Voltage On (X209) Amplified Left Front Speaker (+) Circuit
Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the Amplifier C1 harness connector.

Disconnect the Amplified Left Front Speaker harness connector.

Turn the ignition on.

Measure for voltage on the (X209) Amplified Left Front Speaker (+) circuit.

Is the voltage above 10.0 volts?

Yes

Repair the (X209) Amplified Left Front 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

No

Go to 3).

3) CHECK FOR VOLTAGE ON THE (X299) AMPLIFIED LEFT FRONT SPEAKER (-)
CIRCUIT

Fig. 68: Measuring For Voltage On (X299) Amplified Left Front Speaker (-) Circuit
Courtesy of CHRYSLER LLC

Measure for voltage on the (X299) Amplified Left Front Speaker (-) circuit.

Is the voltage above 10.0 volts?

Yes

Repair the (X299) Amplified Left Front Speaker (-) 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

Replace the amplifier in accordance with the service information.

Perform BODY VERIFICATION TEST - VER 1 .

B146D-CHANNEL 3 AUDIO SPEAKER OUTPUT CIRCUIT OPEN

2007 Dodge Nitro R/T

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