Pinpoint Tests AR: DTC U0151:00

Instrumentation, Message Center and Warning Chimes

Pinpoint Test AR: DTC U0151:00

Normal Operation
- DTC U0151:00 (Lost Communication With Restraints Control Module: No Sub Type Information) - sets in continuous memory in the Instrument Panel Cluster (IPC) if data messages received from the Restraints Control Module (RCM) over the High Speed Controller Area Network (HS-CAN) are missing for 5 seconds or more. 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:

- RCM
- IPC

PINPOINT TEST AR: DTC U0151:00

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AR1 VERIFY THE CUSTOMER CONCERN

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

Yes
GO to AR2.

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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AR2 CHECK THE COMMUNICATION NETWORK

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

Yes
GO to AR3.

No
REFER to Module Communications Network Testing and Inspection.

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AR3 RETRIEVE THE RECORDED DTCs FROM THE RCM SELF-TEST

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

Yes
REFER to Supplemental Restraint System Testing and Inspection.

No
GO to AR4.

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AR4 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST

- Check for recorded DTCs from the IPC self-test.
- Is DTC U3006:16 or DTC U3006:17 recorded?

Yes
For DTC U3006:16, GO to Pinpoint Test AU. For DTC U3006:17, GO to Pinpoint Test AV. Pinpoint Tests AU: DTC U3006:16 Pinpoint Tests AV: DTC U3006:17

No
GO to AR5.

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AR5 RECHECK THE IPC DTCs

- Clear the DTCs.
- Wait 10 seconds.
- Repeat the IPC self-test.
- Is DTC U0151:00 still present?

Yes
GO to AR6.

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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AR6 CHECK FOR DTC U0151:00 SET IN OTHER MODULES

- Clear all DTCs.
- Ignition OFF.
- Ignition ON.
- Wait 10 seconds.
- Enter the following diagnostic mode on the scan tool: Self-Test.
- Retrieve the continuous memory DTCs from all modules.
- Is DTC U0151:00 set in the Occupant Classification System Module (OCSM)?

Yes
INSTALL a new RCM. REFER to Supplemental Restraint System Service and Repair. CLEAR the DTCs. REPEAT the self-test.

No
INSTALL a new IPC. REFER to Instrument Panel Cluster (IPC) Service and Repair. TEST the system for normal operation.

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