Dodge Nitro. Manual - part 698

Does the ohm meter read open circuit?

Yes  

Repair the (C21) Evaporator Temperature Sensor Signal circuit for an open.  

Perform BODY VERIFICATION TEST - VER 1 .  

No  

Go to 5).  

5) CHECK (C121) SENSOR GROUND CIRCUIT FOR AN OPEN 

Fig. 7: Measuring Resistance Of (C121) Sensor Ground Circuit Between A/C Heater Control C1 
Harness Connector And Evaporator Temperature Sensor Harness Connector 
Courtesy of CHRYSLER LLC 

Measure the resistance of the (C121) Sensor Ground circuit between the A/C Heater Control C1 harness 
connector and the Evaporator Temperature Sensor harness connector.

 

2007 Dodge Nitro R/T 

2007 HVAC Heating & Air Conditioning - Electrical Diagnostics - Nitro

  

Does the ohm meter read open circuit?

Yes  

Repair the (C121) Sensor Ground circuit for an open.  

Perform BODY VERIFICATION TEST - VER 1 .  

No  

Replace the Evaporator Temperature Sensor in accordance with the service information.  

Perform BODY VERIFICATION TEST - VER 1 .  

B1034-INFRARED TEMPERATURE SENSOR INPUT CIRCUIT LOW 

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article. 

When Monitored: 

With the ignition on. 

Set Condition: 

If the IR Sensor fails the internal self test. 

Diagnostic Test 

1) REPLACE THE A/C HEATER CONTROL 

Repair  

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

Perform BODY VERIFICATION TEST - VER 1 .  

B1034-INFRARED TEMPERATURE SENSOR THERMISTOR CIRCUIT LOW 

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article. 

When Monitored: 

Possible Causes 

A/C HEATER CONTROL

NOTE:

This DTC must be active for the results of this test to be valid. Do not perform 
this test if this DTC is stored. Refer to HVAC System Test (ATC) for stored DTC 
test procedures.

 

2007 Dodge Nitro R/T 

2007 HVAC Heating & Air Conditioning - Electrical Diagnostics - Nitro

  

With the ignition on. 

Set Condition: 

If the IR Sensor fails the internal self test. 

Diagnostic Test 

1) REPLACE THE A/C HEATER CONTROL 

Repair  

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

Perform BODY VERIFICATION TEST - VER 1 .  

B1035-INFRARED TEMPERATURE SENSOR INPUT CIRCUIT HIGH 

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article. 

When Monitored: 

With the ignition on. 

Set Condition: 

If the IR Sensor fails the internal self test. 

Diagnostic Test 

1) REPLACE THE A/C HEATER CONTROL

Possible Causes 

A/C HEATER CONTROL

NOTE:

This DTC must be active for the results of this test to be valid. Do not perform 
this test if this DTC is stored. Refer to HVAC System Test (ATC) for stored DTC 
test procedures.

Possible Causes 

A/C HEATER CONTROL

NOTE:

This DTC must be active for the results of this test to be valid. Do not perform 
this test if this DTC is stored. Refer to HVAC System Test (ATC) for stored DTC 
test procedures.

 

2007 Dodge Nitro R/T 

2007 HVAC Heating & Air Conditioning - Electrical Diagnostics - Nitro

  

Repair  

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

Perform BODY VERIFICATION TEST - VER 1 .  

B1040-PANEL MODE DOOR 1 CONTROL CIRCUIT/PERFORMANCE 

 

2007 Dodge Nitro R/T 

2007 HVAC Heating & Air Conditioning - Electrical Diagnostics - Nitro