Dodge Nitro. Manual - part 855

Fig. 10: Passenger Door Lock Switch Circuit Schematic 
Courtesy of CHRYSLER LLC 

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article. 

When Monitored: 

 

2007 Dodge Nitro R/T 

2007 ACCESSORIES AND EQUIPMENT Power Locks - Electrical Diagnostics - Nitro

  

Continuously 

Set Condition: 

When the Passenger Door Lock Switch circuit is below 0.8 volts for over 10 seconds. 

This test is only applicable for vehicles that do not have "Express Up" Power Windows.  

Diagnostic Test 

1) TEST FOR INTERMITTENT CONDITION 

With the scan tool, record and erase DTC's 

Operate the Driver Door Lock Switch in all positions several times. 

Cycle the ignition from on to off. 

Turn the ignition on. 

With the scan tool, read DTC's. 

Does the scan tool display B1806-PASSENGER DOOR LOCK/UNLOCK SWITCH CIRCUIT 
LOW?  

Yes  

Go to 2).  

No  

The conditions that caused this code to set are not present at this time. Using the wiring 
diagram/schematic as a guide, inspect the wiring and connectors.  

Perform BODY VERIFICATION TEST - VER 1 .  

2) DOOR LOCK SWITCH SHORTED

Possible Causes 

(G160) PASSENGER DOOR LOCK SWITCH MUX CIRCUIT SHORT TO GROUND
(G160) PASSENGER DOOR LOCK SWITCH MUX CIRCUIT SHORT TO THE (P37) DOOR LOCK 
SWITCH RETURN CIRCUIT
WINDOW/DOOR LOCK SWITCH
TOTALLY INTEGRATED POWER MODULE (TIPM)

 

2007 Dodge Nitro R/T 

2007 ACCESSORIES AND EQUIPMENT Power Locks - Electrical Diagnostics - Nitro

  

Fig. 11: Passenger Window/Door Lock Switch C2 Connector 
Courtesy of CHRYSLER LLC 

With the scan tool, erase DTC's. 

Disconnect the Passenger Window/Door Lock Switch C2 connector. 

With the scan tool, read DTC's. 

Does the scan tool display B1806-PASSENGER DOOR LOCK/UNLOCK SWITCH CIRCUIT 
LOW?  

No  

Replace the Passenger Window/Door Lock Switch.  

Perform BODY VERIFICATION TEST - VER 1 .  

Yes  

Go to 3).  

3) (G160) PASSENGER DOOR LOCK SWITCH MUX CIRCUIT PARTIAL SHORT TO 
GROUND 

 

2007 Dodge Nitro R/T 

2007 ACCESSORIES AND EQUIPMENT Power Locks - Electrical Diagnostics - Nitro

  

Fig. 12: Measuring Resistance Between Ground And (G160) Passenger Door Lock Switch Mux 
Circuit 
Courtesy of CHRYSLER LLC 

Turn the ignition off. 

Disconnect the TIPM C7 connector. 

Measure the resistance between ground and the (G160) Passenger Door Lock Switch Mux circuit in the 
Passenger Window/Door Lock Switch C2 connector. 

Is the resistance below 1,000.0 ohms?  

Yes  

Repair the (G160) Passenger Door Lock Switch Mux circuit for a short to ground.  

Perform BODY VERIFICATION TEST - VER 1 .  

No  

 

2007 Dodge Nitro R/T 

2007 ACCESSORIES AND EQUIPMENT Power Locks - Electrical Diagnostics - Nitro