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