Dodge Nitro. Manual - part 709

Fig. 36: Recirculation Door Control Circuit Schematic 
Courtesy of CHRYSLER LLC 

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article. 

The A/C Heater Control drives the Recirculation Door Actuator via the (C32) Recirculation Door Driver circuit 

 

2007 Dodge Nitro R/T 

2007 HVAC Heating & Air Conditioning - Electrical Diagnostics - Nitro

  

and the (C154) Common Door Driver 2 circuit. 

When Monitored: 

With the ignition on. 

Set Condition: 

If the Recirculation Door Actuator's electrical circuit is open.  

Diagnostic Test 

1) ACTIVE DTC(S) PRESENT 

Turn the ignition on. 

Using the A/C Heater Control, actuate the Recirculation Door. 

With the scan tool, check for DTCs. 

Does the scan tool display this DTC as active?  

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 (C32) RECIRCULATION DOOR DRIVER CIRCUIT FOR AN OPEN 

Possible Causes 

(C32) RECIRCULATION DOOR DRIVER CIRCUIT OPEN
(C154) COMMON DOOR DRIVER 2 CIRCUIT OPEN
RECIRCULATION DOOR ACTUATOR
A/C HEATER CONTROL

 

2007 Dodge Nitro R/T 

2007 HVAC Heating & Air Conditioning - Electrical Diagnostics - Nitro

  

Fig. 37: Measuring Resistance Of (C32) Recirculation Door Driver Circuit Between A/C Heater 
Control C1 Harness Connector And Recirculation Door Actuator Harness Connector 
Courtesy of CHRYSLER LLC 

Turn the ignition off. 

Disconnect the A/C Heater Control C1 harness connector. 

Disconnect the Recirculation Door Actuator harness connector. 

Measure the resistance of the (C32) Recirculation Door Driver circuit between the A/C Heater Control C1 
harness connector and the Recirculation Door Actuator harness connector. 

Does the ohm meter read open circuit?  

Yes  

Repair the (C32) Recirculation Door Driver circuit for an open.  

Perform BODY VERIFICATION TEST - VER 1 . 

 

2007 Dodge Nitro R/T 

2007 HVAC Heating & Air Conditioning - Electrical Diagnostics - Nitro

  

No  

Go to 3).  

3) CHECK (C154) COMMON DOOR DRIVER 2 CIRCUIT FOR AN OPEN 

Fig. 38: Measuring Resistance Of (C154) Common Door Driver 2 Circuit Between A/C Heater 
Control C1 Harness Connector And Recirculation Door Actuator Harness Connector 
Courtesy of CHRYSLER LLC 

Measure the resistance of the (C154) Common Door Driver 2 circuit between the A/C Heater Control C1 
harness connector and the Recirculation Door Actuator harness connector. 

Does the ohm meter read open circuit?  

Yes  

Repair the (C154) Common Door Driver 2 circuit for an open.  

Perform BODY VERIFICATION TEST - VER 1 . 

 

2007 Dodge Nitro R/T 

2007 HVAC Heating & Air Conditioning - Electrical Diagnostics - Nitro