Dodge Nitro. Manual — part 618

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) RIGHT LOW BEAM BULB

Turn the ignition off.

Disconnect the Right Low Beam Bulb.

Turn the ignition on.

With the scan tool, read DTC's.

Does the DTC reset?

Yes

Go to 3).

No

Replace the Right Low Beam Bulb in accordance with the Service Information.

Perform BODY VERIFICATION TEST - VER 1 .

3) (L44) RIGHT LOW BEAM CONTROL CIRCUIT SHORT TO GROUND

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Lamps/Lighting - Exterior - Electrical/Diagnostics - Nitro

Fig. 3: Measuring Resistance Between Ground And (L44) Right Low Beam Control Circuit
Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the TIPM C3 harness connector.

Disconnect the Right Headlamp harness connector.

Measure the resistance between ground and the (L44) Right Low Beam Control circuit.

Is the resistance above 10k ohms?

Yes

Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.

Perform BODY VERIFICATION TEST - VER 1 .

No

Repair the (L44) Right Low Beam Control circuit for a short to ground.

Perform BODY VERIFICATION TEST - VER 1 .

B1630-RIGHT LOW BEAM CONTROL CIRCUIT HIGH

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article.

When Monitored:

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Lamps/Lighting - Exterior - Electrical/Diagnostics - Nitro

Continuously.

Set Condition:

When the Totally Integrated Power Module (TIPM) detects a HIGH condition.

Diagnostic Test

1) INTERMITTENT CONDITION

Turn the ignition on.

With the scan tool, clear all DTC's.

Turn the Headlamps on.

With the scan tool, read DTC's.

Does the scan tool display active: B1630-RIGHT LOW BEAM CONTROL 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 (L910) RIGHT HEADLAMP RETURN SIGNAL

Turn the ignition off.

Disconnect the Right Low Beam Lamp harness connector.

Possible Causes

CHECK (L910) RIGHT HEADLAMP RETURN SIGNAL
(L910) RIGHT HEADLAMP RETURN SIGNAL
CHECK (L44) RIGHT LOW BEAM CONTROL CIRCUIT
(L44) RIGHT LOW BEAM CONTROL CIRCUIT OPEN
(L44) RIGHT LOW BEAM CONTROL CIRCUIT SHORTED TO VOLTAGE
RIGHT LOW BEAM BULB
TOTALLY INTEGRATED POWER MODULE

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Lamps/Lighting - Exterior - Electrical/Diagnostics - Nitro

With a 12-volt test light connected to 12-volts, probe the (L910) right headlamp return signal circuit.

Does the test light illuminate brightly on each ground circuit?

Yes

Go to 4).

No

Go to 3).

3) (L910) RIGHT HEADLAMP RETURN SIGNAL

Measure the resistance of the (L910) right headlamp return signal circuit at the Right Low Beam harness
connector.

Is the resistance below 10.0 ohms?

Yes

Replace the Inoperative bulb in accordance with the Service Information.

Perform BODY VERIFICATION TEST - VER 1 .

No

Repair the (L910) right headlamp return signal circuit for an open.

Perform BODY VERIFICATION TEST - VER 1 .

4) CHECK (L44) RIGHT LOW BEAM CONTROL CIRCUIT

Turn the ignition on.

With a 12-volt test light connected to ground, check the (L44) Right Low Beam Control circuit.

Does the test light illuminate brightly with the headlamps switch turned on, and shut off with the
headlamps turned off?

Yes

Replace the Inoperative bulb in accordance with the Service Information.

Perform BODY VERIFICATION TEST - VER 1 .

No

Go to 5).

5) (L44) RIGHT LOW BEAM CONTROL CIRCUIT OPEN

2007 Dodge Nitro R/T

2007 ACCESSORIES AND EQUIPMENT Lamps/Lighting - Exterior - Electrical/Diagnostics - Nitro