Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read DTCs.
  Does the scan tool display: U1008-LIN 1 BUS?
  
  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.
SHORTED LIN BUS COMPONENT
NOTE: After disconnecting each component, check DTCs with the scan tool.
1. Turn the ignition on.
2. Disconnect the Switch Bank harness connector.
3. Disconnect the Compass Module harness connector.
4. Disconnect the Heated Seat Module harness connector.
5. Disconnect the Left Multifunction Switch C1 harness connector.
  With each component disconnected, did the DTC U1008-LIN 1 BUS change from active to stored?
  
  Yes
  - Replace the component that caused the DTC U1008-LIN 1 BUS change from active to stored.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 3
(D506) LIN BUS CIRCUIT OPEN

Fig 1: Checking LIN BUS Circuit Open
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Cluster C3 harness connector.
3. Disconnect the Switch Bank harness connector.
4. Measure the resistance of the (D506) LIN Bus circuit.
  Is the resistance above 10K Ohms?
  
  Yes
  - Repair the (D506) LIN Bus circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 4
(D506) LIN BUS CIRCUIT SHORTED TO GROUND

Fig 2: Checking LIN BUS Circuit Shorted To Ground
Courtesy of CHRYSLER LLC
1. Measure the resistance to ground on the (D506) LIN Bus circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (D506) LIN Bus circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Replace the Cluster in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .