Pinpoint Test

1. Ignition ON.
2. Verify there is an observable symptom present.

Is an observable symptom present? 

1. Yes: GO to 2  .
2. No: The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

1. Ignition ON.
2. Using a scan tool, perform a network test.

Does the C-CM pass the network test? 

1. Yes: GO to 3  .
2. No: REFER to DIAGNOSTIC ROUTINE U : The Cruise-Control Module (C-CM) Does Not Respond To The Scan Tool.

1. Using a scan tool, perform the HUD module self-test.

Is DTC U3003:16 or DTC U3003:1C recorded? 

1. Yes:

   For DTC U3003:16, REFER to Diagnostic Routine E .

   For DTC U3003:1C, REFER to Diagnostic Routine F .

2. No: GO to 4  .

1. Using a scan tool, clear the DTCs  .
2. Repeat the HUD module self-test.

Is DTC U0104:00 still present? 

1. Yes: INSTALL a new C-CM  . REFER to CRUISE CONTROL MODULE (C-CM) . CLEAR the DTCs  . REPEAT the self-test.

   If DTC U0104:00 is still present, INSTALL a new HUD module. REFER to Head Up Display (HUD) Module .

2. No: The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.