Pinpoint Tests BS: DTC U0184:00

Instrumentation, Message Center and Warning Chimes

Pinpoint Test BS: DTC U0184:00

Normal Operation
- DTC U0184:00 (Lost Communication With Radio: No Sub-Type Information) - sets in the Instrument Panel Cluster (IPC) if data messages received from the Audio Control Module (ACM) over the High Speed Controller Area Network (HS-CAN) are missing for greater than 5 seconds. For a complete list of all network messages, refer to Module Communications Network Testing and Inspection.

This pinpoint test is intended to diagnose the following:

- ACM
- IPC


PINPOINT TEST BS: DTC U0184:00

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BS1 VERIFY THE CUSTOMER CONCERN

- Ignition ON.
- Verify that there is an observable symptom present.
- Is an observable symptom present?

Yes
GO to BS2.

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.

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BS2 CHECK THE COMMUNICATION NETWORK

- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Network Test .
- Carry out the network test.
- Does the ACM pass the network test?

Yes
GO to BS3.

No
REFER to Module Communications Network Testing and Inspection.

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BS3 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST

- Check for recorded DTCs from the IPC self-test.
- Is DTC U3003:16 or DTC U3003:17 recorded?

Yes
GO to Pinpoint Test BX (U3003:16) or GO to Pinpoint Test BY (U3003:17). Pinpoint Tests BX: DTC U3003:16 Pinpoint Tests BY: DTC U3003:17

No
GO to BS4.

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BS4 RECHECK THE IPC DTCs

NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the PMI may not have been carried out.

- Clear the DTCs. Repeat the IPC self-test.
- Is DTC U0184:00 still present?

Yes
INSTALL a new ACM. REFER to Information and Entertainment Systems Removal and Replacement. CLEAR the DTCs. REPEAT the IPC self-test.

If DTC U0184:00 is still present, INSTALL a new IPC. REFER to Instrument Panel Cluster (IPC) Instrument Panel Cluster (IPC). TEST the system for normal operation.

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.

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