Dodge Nitro. Manual — part 638

DAYTIME RUNNING LAMPS

FRONT FOG LAMPS

CONDITION

POSSIBLE CAUSES

CORRECTION

BRAKE LAMP DOES NOT

ILLUMINATE

1. Ineffective or missing bulb. 1. Test and replace brake lamp bulb if

required.

2. Ineffective ground circuit.

2. Test and repair open brake lamp
ground circuit if required.

3. Ineffective fuse.

3. Test and replace the fuse in the TIPM
if required.

4. Ineffective feed circuit.

4. Test and repair open brake lamp switch
output circuit or stop lamp output circuit
if required.

5. Ineffective switch.

5. Test and replace brake lamp switch if
required.

6. Ineffective TIPM inputs or
outputs.

6. Use a diagnostic scan tool to test the
TIPM inputs and outputs. Refer to the
appropriate diagnostic information.

BRAKE LAMP DOES NOT

EXTINGUISH

1. Ineffective feed circuit.

1. Test and repair shorted brake lamp
switch output circuit or stop lamp output
circuit if required.

2. Improperly adjusted switch.

2. Adjust the brake lamp switch if
required.

3. Ineffective switch.

3. Test and replace brake lamp switch if
required.

4. Ineffective TIPM inputs or
outputs.

4. Use a diagnostic scan tool to test the
TIPM inputs and outputs. Refer to the
appropriate diagnostic information.

NOTE:

Before performing the following tests, determine whether the headlamp low and
high beams operate. If the headlamp low and high beams are also ineffective,
diagnose and repair that problem before attempting to repair the Daytime
Running Lamps.

CONDITION

POSSIBLE CAUSES

CORRECTION

DAYTIME RUNNING

LAMPS WILL NOT

ILLUMINATE

1. Incorrect TIPM
programming.

1. Use a diagnostic scan tool to check and
configure TIPM if required.

2. Automatic transmission in
PARK position.

2. Place the transmission gear selector
lever in any position except PARK.

3. Parking brake applied.

3. Release the parking brake.

4. Engine not running.

4. Start the engine.

5. Ineffective TIPM inputs or
outputs.

5. Use a diagnostic scan tool to test the
TIPM inputs and outputs. Refer to the
appropriate diagnostic information.

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Lamps/Lighting - Exterior - Service Information - Nitro

HAZARD WARNING LAMPS

NOTE:

The front fog lamp switch is integral to the left multi-function switch/Steering
Control Module (SCM), which communicates with the Electro Mechanical
Instrument Cluster (EMIC)/Cab Compartment Node (CCN) over the Local
Interface Network (LIN) data bus. Before performing any of the following tests,
determine whether the other functions of the left multi-function switch/SCM are
operational. If the other left multi-function switch/SCM functions are ineffective,
diagnose and repair that problem before attempting to repair the Front Fog
Lamps.

CONDITION

POSSIBLE CAUSES

CORRECTION

FRONT FOG LAMP DOES

NOT ILLUMINATE

1. Ineffective or missing bulb. 1. Test and replace front fog lamp bulb if

required.

2. Ineffective ground circuit.

2. Test and repair open front fog lamp
ground circuit if required.

3. Ineffective feed circuit.

3. Test and repair open front fog lamp
feed circuit if required.

4. Ineffective EMIC (CCN)
inputs or outputs.

4. Use a diagnostic scan tool to test the
EMIC (CCN) inputs and outputs. Refer to
the appropriate diagnostic information.

5. Ineffective TIPM inputs or
outputs.

5. Use a diagnostic scan tool to test the
TIPM inputs and outputs. Refer to the
appropriate diagnostic information.

FRONT FOG LAMP DOES

NOT EXTINGUISH

1. Ineffective feed circuit.

1. Test and repair shorted front fog lamp
feed circuit if required.

2. Ineffective EMIC (CCN)
inputs or outputs.

2. Use a diagnostic scan tool to test the
EMIC (CCN) inputs and outputs. Refer to
the appropriate diagnostic information.

3. Ineffective TIPM inputs or
outputs.

3. Use a diagnostic scan tool to test the
TIPM inputs and outputs. Refer to the
appropriate diagnostic information.

NOTE:

The hazard switch is integral to the instrument panel switch bank, which
communicates with the EMIC/CCN over the LIN data bus. Before performing any
of the following tests, confirm whether the left and right turn signals operate
satisfactorily. Then determine whether the other functions of the instrument
panel switch bank are operational. If the turn signals are ineffective or operate
improperly, or if the other instrument panel switch bank functions are
ineffective, diagnose and repair those problems before attempting to repair the
Hazard Warning Lamps.

CONDITION

POSSIBLE CAUSES

CORRECTION

HAZARD WARNING

LAMPS DO NOT FLASH

1. Ineffective EMIC (CCN)
inputs or outputs.

1. Use a diagnostic scan tool to test the
EMIC (CCN) inputs and outputs. Refer to

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Lamps/Lighting - Exterior - Service Information - Nitro

HEADLAMPS

the appropriate diagnostic information.

2. Ineffective TIPM inputs or
outputs.

2. Use a diagnostic scan tool to test the
TIPM inputs and outputs. Refer to the
appropriate diagnostic information.

HAZARD WARNING

LAMPS DO NOT STOP

FLASHING

1. Ineffective EMIC (CCN)
inputs or outputs.

1. Use a diagnostic scan tool to test the
EMIC (CCN) inputs and outputs. Refer to
the appropriate diagnostic information.

2. Ineffective TIPM inputs or
outputs.

2. Use a diagnostic scan tool to test the
TIPM inputs and outputs. Refer to the
appropriate diagnostic information.

NOTE:

As part of the exterior lighting fail-safe feature, upon ignition ON, all exterior
park lamps and the headlamp low beams will illuminate regardless of the left
multi-function switch control knob position if the SCM cannot detect an input
from the left multi-function switch, or if there is a loss of communication
between the left multi-function switch/SCM and the EMIC or between the EMIC
and the TIPM. Diagnose and repair those problems before attempting to repair
the Headlamps. In addition, the TIPM will store a Diagnostic Trouble Code (DTC)
for an open or shorted headlamp circuit.

CONDITION

POSSIBLE CAUSES

CORRECTION

HEADLAMP DOES NOT

ILLUMINATE

1. Ineffective or missing bulb. 1. Test and replace headlamp bulb if

required.

2. Ineffective ground circuit.

2. Test and repair open headlamp ground
circuit if required.

3. Ineffective feed circuit.

3. Test and repair open headlamp low
beam or high beam feed circuit if
required.

4. Ineffective EMIC (CCN)
inputs or outputs.

4. Use a diagnostic scan tool to test the
EMIC (CCN) inputs and outputs. Refer to
the appropriate diagnostic information.

5. Ineffective TIPM inputs or
outputs.

5. Use a diagnostic scan tool to test the
TIPM inputs and outputs. Refer to the
appropriate diagnostic information.

HEADLAMP DOES NOT

EXTINGUISH

1. Ineffective feed circuit.

1. Test and repair shorted headlamp low
beam or high beam feed circuit if
required.

2. Ineffective EMIC (CCN)
inputs or outputs.

2. Use a diagnostic scan tool to test the
EMIC (CCN) inputs and outputs. Refer to
the appropriate diagnostic information.

3. Ineffective TIPM inputs or
outputs.

3. Use a diagnostic scan tool to test the
TIPM inputs and outputs. Refer to the
appropriate diagnostic information.

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Lamps/Lighting - Exterior - Service Information - Nitro

HEADLAMP LEVELING

HEADLAMPS ILLUMINATE

WITH IGNITION ON AND

HEADLAMP SWITCH OFF

(FAIL-SAFE OPERATION)

1. Loss of LIN or CAN data
bus communication.

1. Test and repair the LIN or CAN data
bus if required. Refer to the appropriate
diagnostic information.

HEADLAMPS WILL NOT

SWITCH FROM HIGH TO

LOW BEAMS, OR FROM

LOW TO HIGH BEAMS

1. Ineffective EMIC (CCN)
inputs or outputs.

1. Use a diagnostic scan tool to test the
EMIC (CCN) inputs and outputs. Refer to
the appropriate diagnostic information.

2. Ineffective TIPM inputs or
outputs.

2. Use a diagnostic scan tool to test the
TIPM inputs and outputs. Refer to the
appropriate diagnostic information.

NOTE:

The headlamp leveling switch is integral to the instrument panel switch bank,
which communicates with the EMIC/CCN over the LIN data bus. Before
performing any of the following tests, confirm whether the park lamps operate
satisfactorily. Then determine whether the other functions of the instrument
panel switch bank are operational. If the park lamps are ineffective or operate
improperly, or if the other instrument panel switch bank functions are
ineffective, diagnose and repair those problems before attempting to repair the
Headlamp Leveling function.

CONDITION

POSSIBLE CAUSES

CORRECTION

ONE LEVELING MOTOR IS

INEFFECTIVE

1. Ineffective ground circuit.

1. Test and repair open leveling motor
ground circuit if required.

2. Ineffective feed circuit.

2. Test and repair open leveling motor
feed circuit if required.

3. Ineffective signal circuit.

3. Test and repair open headlamp leveling
motor signal circuit if required.

4. Ineffective motor.

4. Test and replace headlamp leveling
motor if required.

BOTH LEVELING MOTORS

ARE INEFFECTIVE

1. Ineffective EMIC (CCN)
inputs or outputs.

1. Use a diagnostic scan tool to test the
EMIC (CCN) inputs and outputs. Refer to
the appropriate diagnostic information.

2. Ineffective motor ground
circuit.

2. Test and repair open leveling motor
ground circuit if required.

3. Ineffective motor feed
circuit.

3. Test and repair open leveling motor
feed circuit if required.

4. Ineffective signal circuit.

4. Test and repair open or shorted
headlamp leveling motor signal circuit if
required.

5. Ineffective TIPM inputs or
outputs.

5. Use a diagnostic scan tool to test the
TIPM inputs and outputs. Refer to the
appropriate diagnostic information.

6. Ineffective motors.

6. Test and replace leveling motors if

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Lamps/Lighting - Exterior - Service Information - Nitro