Diagnostic Test

CHECK FOR AN ACTIVE DTC
NOTE: Before proceeding with this diagnostic procedure, verify the Left and Right Multifunction Switch and Clockspring harness connectors are properly seated and verify proper pin terminal tension. A loose connection at any of these connectors may cause this DTC to set.
1. Turn the ignition on.
2. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go to step 2
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. 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.
(D500) LIN BUS CIRCUIT OPEN

Fig 1: Checking LIN BUS Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Multifunction Switch C1 harness connector.
3. Turn the ignition on.
4. Measure the voltage of the (D500) LIN BUS circuit.
  Is the voltage above 5 volts?
  
  Yes
  - Go to step 3
  No
  - Repair the (D500) LIN BUS circuit for an open
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
(F941) FUSED IGNITION RUN/START CONTROL OUTPUT CIRCUIT OPEN

Fig 2: Checking Fused Ignition Run/Start Control Output Circuit
Courtesy of CHRYSLER LLC
1. Measure the voltage of the (F941) Fused Ignition Run/Start Control Output circuit.
  Is the voltage above 10 volts?
  
  Yes
  - Go to step 4
  No
  - Repair the (F941) Fused Ignition Run/Start Control Output circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
(A114) FUSED B(+) (I.O.D.) CIRCUIT OPEN

Fig 3: Checking Fused B(+) (I.O.D.) Circuit
Courtesy of CHRYSLER LLC
1. Measure the voltage of the (A114) Fused B(+) (I.O.D.) circuit.
  Is the voltage above 10 volts?
  
  Yes
  - Go to step 5
  No
  - Repair the (A114) Fused B(+) (I.O.D.) circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
(Z907) GROUND CIRCUIT OPEN

Fig 4: Checking Ground Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Measure the resistance between ground and the (Z907) Ground circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Replace the Multifunction Switch in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Repair the (Z907) Ground circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .