Pinpoint Test AC: DTC U0151:00

Anti-Lock Control - Four-Channel

Pinpoint Tests

Pinpoint Test AC: DTC U0151:00

Normal Operation
- DTC U0151:00 (Lost Communication With Restraints Control Module: No Sub Type Information) - a continuous memory DTC set by the ABS module if it does not receive yaw or other sensor messages from the Restraints Control Module (RCM) for 5 seconds or longer.

This pinpoint test is intended to diagnose the following:
- Communication network concern
- RCM
- ABS module

PINPOINT TEST AC: DTC U0151:00

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AC1 VERIFY THE CUSTOMER CONCERN

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

Yes
GO to AC2.

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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AC2 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 AC3.

No
REFER to Module Communications Network Testing and Inspection.

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AC3 RETRIEVE THE RECORDED DTCs FROM THE ABS MODULE AND RCM MODULE SELF-TESTS

- Check for recorded receiving module and transmitting module DTCs from the self-test.
- Is DTC B11E8:16 (U3003:16) or DTC B11E8:17 (U3003:17) recorded?

Yes
For DTC B11E8:16, GO to Pinpoint Test P. For DTC B11E8:17, GO to Pinpoint Test Q. For the RCM, REFER to Supplemental Restraint System Testing and Inspection. Pinpoint Test P: DTC B11E8:16 Pinpoint Test Q: DTC B11E8:17

No
GO to AC4.

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AC4 RECHECK THE ABS MODULE DTCs

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

Yes
GO to AC5.

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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AC5 CHECK FOR DTC U0151:00 SET IN OTHER MODULES

- Clear the 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 more than one module?

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

No
INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module Service and Repair. TEST the system for normal operation.

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