Pinpoint Test

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

Are any HUD module DTCs recorded? 

1. Yes: REFER to DTC Chart: Head Up Display (HUD) Module .
2. No: GO to 2  .

1. Using a scan tool, perform the C-CM  self-test.

Are any C-CM DTCs recorded? 

1. Yes: REFER to DTC CHART: CRUISE CONTROL MODULE (C-CM) - Adaptive.
2. No: GO to 3  .

1. Check the IPC message center for correct operation.

Does the message center operate correctly? 

1. Yes: GO to 4  .
2. No: REFER to DIAGNOSTIC ROUTINE AD : The Message Center Is Not Operating Correctly.

1. Ignition OFF.
2. Disconnect: HUD Module.
3. Ignition ON.
4. Measure:

   HUD Module			Ground
   C2395			Ground
   Pin	Circuit	Measurement / Action	Pin	Circuit
   5	SBP11 (BU/RD)		-	Ground
   4	CBP35 (YE/GY)		-	Ground

Are the voltages greater than 11 volts? 

1. Yes: GO to 5  .
2. No: VERIFY the BCM fuse 11 (10A) or 35 (5A) is OK. If OK, REPAIR the circuit in question for an open. If not OK, REFER to the appropriate wiring diagrams to identify the possible causes of the circuit short. REFER to OEM FUSE AND RELAY INFORMATION and OEM WIRING DIAGRAMS .

1. Measure:

   HUD Module			HUD Module
   C2395			C2395
   Pin	Circuit	Measurement / Action	Pin	Circuit
   4	CBP35 (YE/GY)		1	GD215 (BK/GY)

Is the voltage greater than 11 volts? 

1. Yes: GO to 6  .
2. No: REPAIR the circuit

1. Disconnect and inspect the HUD module connector.
2. Repair:
   • corrosion (install new connector or terminals - clean module pins)
   • damaged pins - install new terminals/pins
   • pushed-out pins - install new pins as necessary
3. Reconnect the HUD module connector. Make sure it seats and latches correctly.
4. Operate the system and determine if the concern is still present.

Is the concern still present? 

1. Yes: CHECK OASIS  for any applicable TSBs  . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs  address this concern, INSTALL a new HUD module. REFER to Head Up Display (HUD) Module .
2. No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.