Dodge Nitro. Manual — part 307

DIAGNOSIS AND TESTING

SPEAKER

Any diagnosis of the Audio system should begin with the use of scan tool. For information on the use of
the scan tool, refer to the appropriate Diagnostic information.

Refer to the appropriate wiring information.

1. If all speakers are inoperative, check the fuses in the Totally Integrated Power Module (TIPM). If OK, go

to Step 2. If not OK, repair the shorted circuit or component as required and replace the faulty fuse.

2. Turn the ignition switch to the ON position. Turn the radio receiver ON. Adjust the balance and fader

control controls to check the performance of each individual speaker. Note the speaker locations that are
not performing correctly. Go to Step 3.

3. Turn the radio receiver OFF. Turn the ignition OFF. Disconnect and isolate the battery negative cable. If

vehicle is not equipped with an amplifier, remove the radio receiver. If vehicle is equipped with an
amplifier, disconnect wire harness connector at output side of amplifier. Go to Step 4.

4. Check both the speaker feed (+) circuit and return (-) circuit cavities for the inoperative speaker at the

radio receiver wire harness connector for continuity to ground. There should be no continuity. If OK, go
to Step 5. If not OK, repair the shorted speaker feed (+) and/or return (-) circuits(s) to the speaker as
required.

5. Disconnect wire harness connector at the inoperative speaker. Check for continuity between the speaker

feed (+) circuit cavities of the radio receiver wire harness connector and the speaker wire harness
connector. Repeat the check between the speaker return (-) circuit cavities of the radio receiver wire
harness connector and the speaker wire harness connector. In each case, there should be continuity. If
OK, replace the faulty speaker. If not OK, repair the open speaker feed (+) and/or return (-) circuits(s) as
required.

WARNING:

Disable the airbag system before attempting any steering wheel, steering
column, seat belt tensioner, side airbag, or instrument panel component
diagnosis or service. Disconnect and isolate the battery negative (ground)
cable, then wait two minutes for the airbag system capacitor to discharge
before performing further diagnosis or service. This is the only sure way
to disable the airbag system. Failure to take the proper precautions could
result in accidental airbag deployment and possible personal injury.

CAUTION: The speaker output of the radio is a "floating ground" system. Do not

allow any speaker lead to short to ground, as damage to the radio may
result.

NOTE:

If poor sound quality is noted in the audio system, check the Cabin Equalization
curve programmed in the TIPM. Make sure a base speaker system has the Base
Cabin Equalization Curve programmed to the vehicle. If the vehicle has a
premium speaker system, make sure the Premium Cabin Equalization Curve is
programmed to the vehicle

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Audio/Video - Service Information - Nitro

REMOVAL

SPEAKER

SPEAKER

Fig. 6: Removing Speaker
Courtesy of CHRYSLER LLC

1. Disconnect and isolate the battery negative cable.

2. Remove the front door trim panel. Refer to REMOVAL .

3. Remove the speaker mounting fasteners.

4. Remove the speaker from the door and disconnect the wire harness connector.

INSTRUMENT PANEL

FRONT DOOR

Refer to step FRONT DOOR removal procedure.

INSTRUMENT PANEL

Refer to step INSTRUMENT PANEL removal procedure.

REAR DOOR

Refer to step REAR DOOR removal procedure.

SUBWOOFER

Refer to step SUBWOOFER removal procedure.

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Audio/Video - Service Information - Nitro

Fig. 7: Removing Speaker In Instrument Panel
Courtesy of CHRYSLER LLC

1. Disconnect and isolate the battery negative cable.

2. Remove the air outlet. Refer to REMOVAL .

3. Remove speaker mounting fasteners.

4. Remove speaker (1) and disconnect the wire harness connector.

REAR DOOR

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Audio/Video - Service Information - Nitro

Fig. 8: Removing Rear Door Speaker
Courtesy of CHRYSLER LLC

1. Disconnect and isolate the battery negative cable.

2. Remove the rear door trim panel. Refer to REMOVAL .

3. Remove the speaker mounting fasteners.

4. Remove the speaker (1) from the door and disconnect the wire harness connector (3).

SUBWOOFER

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Audio/Video - Service Information - Nitro