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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 492 ((Heating & Air Conditioning (ATC) - Electrical Diagnostics)) >> DTC Troubleshooting >> B1035-Infrared Temperature Sensor Input Circuit High >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK IF DTC IS ACTIVE 
    1. Ignition on, engine not running.
    2. With the scan tool, read HVAC DTCs.

      Is this DTC active?

      Yes 

      • Go To  3

      No 

      • Go To  10
  2. IDENTIFY THE VEHICLE 
    1. Pick below what best describes the vehicle you are working on.

      JS27 Two Door 

      • Go To  3

      JS41 Four Door 

      • Go To  6
  3. CHECK THE (C83) IR SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE (JS27) 
    Fig 1: Checking IR Sensor Signal Circuit For Short To Voltage
    GC0123520Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off to the lock position.
    2. Disconnect the A/C Heater Control harness connector.
    3. Disconnect the Infrared Sensor harness connector.
    4. Ignition on, engine not running.
    5. Measure the voltage of the (C83) IR Sensor Signal circuit.

      Is there any voltage present?

      Yes 

      • Repair the (C83) IR Sensor Signal circuit for a short to voltage.
      • Perform the HVAC VERIFICATION TEST. Refer to STANDARD PROCEDURE  .

      No 

      • Go To  4
  4. CHECK THE (C830) IR SENSOR RETURN CIRCUIT FOR A SHORT TO VOLTAGE (JS27) 
    Fig 2: Checking IR Sensor Signal Circuit For A Short To Voltage
    GC0123521Courtesy of CHRYSLER GROUP, LLC
    1. Measure the voltage of the (C830) IR Sensor Return circuit.

      Is there any voltage present?

      Yes 

      • Repair the (C830) IR Sensor Return circuit for a short to voltage.
      • Perform the HVAC VERIFICATION TEST. Refer to STANDARD PROCEDURE  .

      No 

      • Go To  5
  5. CHECK THE (C830) IR SENSOR RETURN CIRCUIT FOR AN OPEN (JS27) 
    Fig 3: Checking IR Sensor Signal Circuit For An Open
    GC0123522Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off to the lock position.
    2. Measure the resistance of the (C830) IR Sensor Return circuit between the A/C Heater Control harness connector and the Infrared Sensor harness connector.

      Is the resistance above 5.0 Ohms?

      Yes 

      • Repair the (C830) IR Sensor Return circuit for an open.
      • Perform the HVAC VERIFICATION TEST. Refer to STANDARD PROCEDURE  .

      No 

      • Go To  9
  6. CHECK THE (C83) IR SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE (JS41) 
    Fig 4: Measuring Voltage Of IR Sensor Signal Circuit For A Short
    GC0123523Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off to the lock position.
    2. Disconnect the A/C Heater Control harness connector.
    3. Disconnect the Infrared Sensor harness connector.
    4. Ignition on, engine not running.
    5. Measure the voltage of the (C83) IR Sensor Signal circuit.

      Is there any voltage present?

      Yes 

      • Repair the (C83) IR Sensor Signal circuit for a short to voltage.
      • Perform the HVAC VERIFICATION TEST. Refer to STANDARD PROCEDURE  .

      No 

      • Go To  7
  7. CHECK THE (C830) IR SENSOR RETURN CIRCUIT FOR A SHORT TO VOLTAGE (JS41) 
    Fig 5: Measuring Voltage Of IR Sensor Return Circuit
    GC0123524Courtesy of CHRYSLER GROUP, LLC
    1. Measure the voltage of the (C830) IR Sensor Return circuit.

      Is there any voltage present?

      Yes 

      • Repair the (C830) IR Sensor Return circuit for a short to voltage.
      • Perform the HVAC VERIFICATION TEST. Refer to STANDARD PROCEDURE  .

      No 

      • Go To  8
  8. CHECK THE (C830) IR SENSOR RETURN CIRCUIT FOR AN OPEN (JS41) 
    Fig 6: Measuring Resistance Of IR Sensor Return Circuit Between A/C Heater Control Harness Connector And Infrared Sensor Harness Connector
    GC0123525Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off to the lock position.
    2. Measure the resistance of the (C830) IR Sensor Return circuit between the A/C Heater Control harness connector and the Infrared Sensor harness connector.

      Is the resistance above 5.0 Ohms?

      Yes 

      • Repair the (C830) IR Sensor Return circuit for an open.
      • Perform the HVAC VERIFICATION TEST. Refer to STANDARD PROCEDURE  .

      No 

      • Go To  9
  9. CHECK THE INFRARED SENSOR 
    1. Replace the Infrared Sensor in accordance with the Service Information.
    2. Perform the HVAC VERIFICATION TEST. Refer to STANDARD PROCEDURE  .

      Did the DTC reset performing the HVAC Verification Test?

      Yes 

      • Replace and program the A/C Heater Control in accordance with the Service Information.
      • Perform the HVAC VERIFICATION TEST. Refer to STANDARD PROCEDURE  .

      No 

      • Test complete.
  10. CHECK THE WIRING AND CONNECTORS 
    1. The conditions necessary to set the DTC are not present at this time.
    2. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set.
    3. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
    4. Wiggle the wiring and connectors while checking for shorted and open circuits.

      Were there any problems found?

      Yes 

      • Repair as necessary.
      • Perform the HVAC VERIFICATION TEST. Refer to STANDARD PROCEDURE  .

      No 

      • Test complete.
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