Dodge Nitro. Manual - part 619

Fig. 4: Measuring Resistance Of (L44) Right Low Beam Control Circuit Between Right Low Beam 
Harness Connector And TIPM C3 Harness Connector 
Courtesy of CHRYSLER LLC 

Turn the ignition off. 

Disconnect the TIPM C3 harness connector. 

Measure the resistance of the (L44) Right Low Beam Control circuit between the Right Low Beam 
harness connector and the TIPM C3 harness connector. 

Is the resistance below 10.0 ohms?  

Yes  

Go to 6).  

No  

Repair the (L44) Right Low Beam Control circuit for an open.  

Perform BODY VERIFICATION TEST - VER 1 .  

6) (L44) RIGHT LOW BEAM CONTROL CIRCUIT SHORTED TO VOLTAGE 

 

2007 Dodge Nitro R/T 

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

  

Fig. 5: Measuring For Voltage On (L44) Right Low Beam Control Circuit 
Courtesy of CHRYSLER LLC 

Turn the ignition on. 

Measure for voltage on the (L44) Right Low Beam Control circuit. 

Is there any voltage present?  

Yes  

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

Perform BODY VERIFICATION TEST - VER 1 .  

No  

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

Perform BODY VERIFICATION TEST - VER 1 .  

B1633-LEFT HI BEAM CONTROL CIRCUIT LOW 

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article. 

When Monitored: 

With the Headlamps activated. 

Set Condition: 

 

2007 Dodge Nitro R/T 

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

  

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

Diagnostic Test 

1) INTERMITTENT CONDITION 

Turn the ignition on. 

With the scan tool, clear all DTC's. 

Turn the High Beam Lamps on. 

With the scan tool, read DTC's. 

Does the scan tool display active: B1633-LEFT HIGH BEAM CONTROL CIRCUIT LOW?  

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) LEFT HIGH BEAM BULB 

Turn the ignition off. 

Disconnect the Left High Beam Bulb. 

Turn the ignition on. 

With the scan tool, read DTC's. 

Does the DTC reset?  

Yes  

Possible Causes 

(L33) LEFT HIGH BEAM CONTROL CIRCUIT SHORT TO GROUND
LEFT HIGH BEAM BULB
TOTALLY INTEGRATED POWER MODULE

 

2007 Dodge Nitro R/T 

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

  

Go to 3).  

No  

Replace the Left High Beam Bulb in accordance with the Service Information.  

Perform BODY VERIFICATION TEST - VER 1 .  

3) (L33) LEFT HIGH BEAM CONTROL CIRCUIT SHORT TO GROUND 

Fig. 6: Measuring Resistance Between Ground And (L33) Left High Beam Control Circuit 
Courtesy of CHRYSLER LLC 

Turn the ignition off. 

Disconnect the TIPM C3 harness connector. 

Disconnect the Left Headlamp harness connector. 

Measure the resistance between ground and the (L33) Left High 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 (L33) Left High Beam Control circuit for a short to ground.  

 

2007 Dodge Nitro R/T 

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