Dodge Nitro. Manual - part 628

Disconnect the Park Lamp harness connector.

Measure the resistance of the (L17)(L217) Fused Park Lamp Control circuits between the Park Lamp 
Harness Connectors and the TIPM C5 harness connector. 

Does the ohm meter read open circuit?  

Yes  

Repair the (L17)(L217) Fused Park Lamp Control circuits for an open.  

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 .  

B166C-LEFT TRAILER TOW LAMP CONTROL CIRCUIT HIGH 

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article. 

When Monitored: 

With the ignition on. 

Set Condition: 

The Totally Integrated Power Module (TIPM) detects an HIGH condition. 

Diagnostic Test 

1) TEST FOR INTERMITTENT CONDITION 

Turn the ignition on. 

With the scan tool, clear all DTC's 

Turn on the Left Turn Signal. 

With the scan tool, read DTC's. 

Possible Causes 

(L673) LEFT TRAILER TOW LAMP CONTROL CIRCUIT OPEN
(L673) LEFT TRAILER TOW LAMP CONTROL CIRCUIT SHORTED TO VOLTAGE
TOTALLY INTEGRATED POWER MODULE

 

2007 Dodge Nitro R/T 

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

  

Does the scan tool display active: B166C-LEFT TRAILER TOW LAMP 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) (L673) LEFT TRAILER TOW LAMP CONTROL CIRCUIT OPEN 

Turn the ignition off. 

Disconnect the TIPM C6 harness connector. 

Disconnect the Left Trailer Tow Lamp harness connectors. 

Measure the resistance of the (L673) Left Trailer Tow Lamp Control circuit between the Left Trailer Tow 
Lamp harness connectors and the TIPM C6 harness connector. 

Does the ohm meter read open circuit?  

Yes  

Repair the (L673) Left Trailer Tow Lamp Control circuit for an open.  

Perform BODY VERIFICATION TEST - VER 1 .  

No  

Go to 3).  

3) (L673) LEFT TRAILER TOW LAMP CONTROL CIRCUIT SHORTED TO VOLTAGE 

Turn the ignition on. 

Measure the voltage on the (L673) Left Trailer Tow Lamp Control circuit. 

Is there any voltage present?  

Yes  

Repair the (L673) Left Trailer Tow Lamp Control circuit for a short to voltage.  

 

2007 Dodge Nitro R/T 

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

  

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 .  

B166F-RIGHT TRAILER TOW LAMP CONTROL CIRCUIT LOW 

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article. 

When Monitored: 

With the ignition on. 

Set Condition: 

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 on the Right Turn Signal. 

With the scan tool, read DTC's. 

Does the scan tool display active: B166F-RIGHT TRAILER TOW LAMP 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 

Possible Causes 

(L674) RIGHT TRAILER TOW LAMP CONTROL CIRCUIT SHORT TO GROUND
TOTALLY INTEGRATED POWER MODULE

 

2007 Dodge Nitro R/T 

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

  

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) (L674) RIGHT TRAILER TOW LAMP CONTROL CIRCUIT SHORT TO GROUND 

Turn the ignition off. 

Disconnect the TIPM C6 harness connector. 

Measure the resistance between ground and the (L674) Right Trailer Tow Lamp 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 (L674) Right Trailer Tow Lamp Control circuit for a short to ground.  

Perform BODY VERIFICATION TEST - VER 1 .  

B1670-RIGHT TRAILER TOW LAMP CONTROL CIRCUIT HIGH 

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article. 

When Monitored: 

Continuously 

Set Condition: 

The Totally Integrated Power Module (TIPM) Detects a HIGH condition. 

Diagnostic Test 

1) TEST FOR INTERMITTENT CONDITION 

Turn the ignition on. 

Possible Causes 

(L674) RIGHT TRAILER TOW LAMP CONTROL CIRCUIT OPEN
(L674) RIGHT TRAILER TOW LAMP CONTROL CIRCUIT SHORTED TO VOLTAGE
TOTALLY INTEGRATED POWER MODULE

 

2007 Dodge Nitro R/T 

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