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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 488 ((Totally Integrated Power Module (TIPM) - Electrical Diagnostics)) >> DTC Troubleshooting >> B2148-Ignition Run Control 2 Circuit Low >> 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 FOR ACTIVE DTC 
    1. Check all fuses. If any fuses are open, diagnose the appropriate circuit.
    2. With the scan tool, read the DTCs.
    3. Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 10 seconds.
    4. With the scan tool, read the DTCs.

      Does the scan tool display this DTC as active?

      Yes 

      • Go To  2

      No 

      • If the DTC is stored, check for an intermittent condition. Using the wiring diagram/schematic as a guide, visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
  2. CHECK THE (F937) CIRCUIT FOR AN INTERNAL SHORT TO GROUND 
    1. Remove Fuse 30.
    2. Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 10 seconds.
    3. With the scan tool, read the DTCs.

      Does the scan tool display this DTC as active?

      Yes 

      • Replace the TIPM in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  3
  3. CHECK THE HEATED SEATS MODULE FOR A SHORT TO GROUND 
    1. Turn the ignition off.
    2. Disconnect the Heated Seats Module harness connector.
    3. Reinstall Fuse 30.
    4. Turn the ignition on, leaving the ignition on for a minimum of 10 seconds.
    5. With the scan tool, read the DTCs.

      Does the scan tool display this DTC as active?

      Yes 

      • Repair the (F937) Fused Ignition Switch Output (Run) circuit for a short to ground.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Replace the Heated Seats Module in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .