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Home >> Fiat >> 2018 >> 500 Lounge, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 41 ((Heating & Air Conditioning - Electrical Diagnostics - 500 - Electric)) >> DTC Troubleshooting >> B1917-15-Cabin Temperature Sensor - Circuit Short To Battery Or Open >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  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 

      • The In-Car Temperature Sensor in incorporated into the A/C Heater Control and is not serviceable. Replace and program the A/C Heater Control in accordance with the Service Information. Refer to CONTROL, A/C AND HEATER, REMOVAL .

      No 

      • Go To  2
  2. 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 

      No 

      • Test complete.