Information and Entertainment Systems - Premium

Diagnostic Routine U

Diagnostic Overview

U0184:00

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions






Pinpoint Test

1. VERIFY THE CUSTOMER CONCERN

1. Ignition ON.

2. Verify there is an observable symptom present.

Is an observable symptom present?








2. CHECK FOR LOST COMMUNICATION DTCs (Diagnostic Trouble Codes)

1. Ignition ON.

2. Using a scan tool, clear continuous memory DTCs (Diagnostic Trouble Codes) from all modules.

3. Ignition OFF.

4. Wait at least 10 seconds.

5. Ignition ON.

6. Using a scan tool, perform the FCDIM (Front Control/Display Interface Module) self-test.

Is DTC (Diagnostic Trouble Code) U0184:00 set in the FCDIM (Front Control/Display Interface Module)?








3. CHECK THE AUDIO SYSTEM MODULES FOR BATTERY VOLTAGE OUT-OF-RANGE DTCs (Diagnostic Trouble Codes)

1. Using a scan tool, perform the ACM (Audio Control Module) and the FCDIM (Front Control/Display Interface Module) self-tests.

Are any low or high voltage DTCs (Diagnostic Trouble Codes) recorded in the ACM (Audio Control Module) or the FCDIM (Front Control/Display Interface Module)?








4. CHECK FOR CORRECT ACM (Audio Control Module) OPERATION

1. Disconnect and inspect all ACM (Audio Control Module) connectors.

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 ACM (Audio Control Module) connectors. Make sure they seat and latch correctly.

4. Operate the system and determine if the concern is still present.

Is the concern still present?