Cabin Compartment Node (CCN)

U1008-LIN 1 BUS







- When Monitored:
With the ignition on.

- Set Condition:
LIN 1 Bus circuit open or shorted to ground.





1. CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read DTCs.

Does the scan tool display this DTC as active?

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. Body Verification Test.

2. 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 Module harness connector.
3. Disconnect the Remote Compass Module harness connector.
4. Disconnect the Heated Seat Module harness connector.
5. Disconnect the Left Multifunction Switch 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. Body Verification Test.

No

- Go To 3

3. (D506) LIN BUS CIRCUIT OPEN




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. Body Verification Test.

No

- Go To 4

4. (D506) LIN BUS CIRCUIT SHORT TO GROUND




1. Turn the ignition off.
2. 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. Body Verification Test.

No

- Replace the Cluster.
- Perform the BODY VERIFICATION TEST. Body Verification Test.