LEMON Manuals: Even more car manuals for everyone
Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 472 ((Cabin Compartment Node (CCN) - Electrical Diagnostics)) >> DTC Troubleshooting >> U113B-Lost Communication With Switch Bank Module >> 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 AN ACTIVE DTC 
    1. Turn the ignition on.
    2. With the scan tool, record and erase DTCs.
    3. Wait 30 seconds.
    4. With the scan tool, read DTCs.

      Does the scan tool display: U113B-LOST COMMUNICATION WITH SWITCH BANK MODULE?

      Yes 

      • Go To  2

      No 

      • The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  2. (D506) LIN BUS CIRCUIT OPEN 
    Fig 1: Checking LIN Bus Circuit For An Open
    GC0124253Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Switch Bank harness connector.
    3. Turn the ignition on.
    4. Measure the voltage of the (D506) LIN BUS circuit.

      Is the voltage above 5 volts?

      Yes 

      • Go To  3

      No 

      • Repair the (D506) LIN BUS circuit for an open.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  3. (A935) FUSED B+ CIRCUIT OPEN 
    Fig 2: Checking Fused B+ Circuit For Open
    GC0124254Courtesy of CHRYSLER GROUP, LLC
    1. Measure the voltage of the (A935) Fused B+ circuit.

      Is the voltage above 10 volts?

      Yes 

      • Go To  4

      No 

      • Repair the (A935) Fused B+ circuit for an open.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  4. (Z912) GROUND CIRCUIT OPEN 
    Fig 3: Checking Ground Circuit For Open
    GC0124255Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance between ground and the (Z912) Ground circuit.

      Is the resistance below 10K Ohms?

      Yes 

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

      No 

      • Repair the (Z912) ground circuit for an open.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
scientia non olet · About LEMON Manuals