Dodge Nitro. Manual — part 714

Fig. 49: Measuring Resistance Between (C32) Recirculation Door Driver Circuit And (C154)
Common Door Driver Circuit In A/C Heater Control C1 Harness Connector
Courtesy of CHRYSLER LLC

Measure the resistance between the (C32) Recirculation Door Driver circuit and the (C154) Common
Door Driver circuit in the A/C Heater Control C1 harness connector.

Is the resistance between 30 and 40 ohms?

Yes

Go to 11).

No

Replace the Recirculation Door Actuator in accordance with the service information.

Perform BODY VERIFICATION TEST - VER 1 .

11) CHECK MODE DOOR ACTUATOR CIRCUIT RESISTANCE

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Electrical Diagnostics - Nitro

Fig. 50: Measuring Resistance Between (C35) Mode Door Driver Circuit And (C154) Common
Door Driver Circuit In A/C Heater Control C1 Harness Connector
Courtesy of CHRYSLER LLC

Measure the resistance between the (C35) Mode Door Driver circuit and the (C154) Common Door
Driver circuit in the A/C Heater Control C1 harness connector.

Is the resistance between 30 and 40 ohms?

Yes

Go to 12).

No

Replace the Mode Door Actuator in accordance with the service information.

Perform BODY VERIFICATION TEST - VER 1 .

12) CHECK BLEND DOOR ACTUATOR CIRCUIT RESISTANCE

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Electrical Diagnostics - Nitro

Fig. 51: Measuring Resistance Between (C54) Blend Door Driver Circuit And (C154) Common
Door Driver Circuit In A/C Heater Control C1 Harness Connector
Courtesy of CHRYSLER LLC

Measure the resistance between the (C54) Blend Door Driver circuit and the (C154) Common Door
Driver circuit in the A/C Heater Control C1 harness connector.

Is the resistance between 30 and 40 ohms?

Yes

Go to 13).

No

Replace the Blend Door Actuator in accordance with the service information.

Perform BODY VERIFICATION TEST - VER 1 .

13) RUN THE ACTUATOR CALIBRATION TEST

Reconnect the A/C Heater Control C1 harness connector.

Turn the ignition on.

With the scan tool, erase HVAC DTCs.

Turn the ignition off, wait 10 seconds, and then turn the ignition on.

With the scan tool, select System Tests and then select Actuator Calibration Test. When the test is
complete, select View DTCs.

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Electrical Diagnostics - Nitro

Does the scan tool only display: B10A2-LEFT BLEND DOOR CONTROL
CIRCUIT/PERFORMANCE?

Yes

Replace the A/C Heater Control in accordance with the service information.

Perform BODY VERIFICATION TEST - VER 1 .

No, Other DTC(s) Displayed

Diagnose and repair the other DTC(s). Refer to the DIAGNOSTIC CODE INDEX for a complete
list of all HVAC related symptoms.

No, And No Other DTCs Displayed

Using the wiring diagram as a guide, inspect the wiring and connectors for conditions causing an
intermittent short. Repair as necessary.

Perform BODY VERIFICATION TEST - VER 1 .

B10A5-LEFT BLEND DOOR CONTROL CIRCUIT OPEN

2007 Dodge Nitro R/T

2007 HVAC Heating & Air Conditioning - Electrical Diagnostics - Nitro