Pinpoint Test L: DTC U0155:00

Anti-Lock Control

Pinpoint Test L: DTC U0155:00

Refer to Wiring Diagram Set 42, Vehicle Dynamic Systems for schematic and connector information [1][2]Diagrams By Number.

Normal Operation

- DTC U0155:00 (Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information)- sets in continuous memory and on-demand if the traction control switch information or other sensor messages from the IPC (Instrument Panel Cluster) are not received for 5 seconds or longer.

This pinpoint test is intended to diagnose the following:

- IPC (Instrument Panel Cluster)

- ABS module

PINPOINT TEST L : DTC U0155:00

L1 VERIFY THE CUSTOMER CONCERN

- Ignition ON.

- Verify that there is an observable symptom present.

Is an observable symptom present?

Yes
GO to L2.

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.

L2 CHECK THE COMMUNICATION NETWORK

- Enter the following diagnostic mode on the scan tool: IPC (Instrument Panel Cluster) Network Test.

- Carry out the network test.

Does the IPC (Instrument Panel Cluster) pass the network test?

Yes
GO to L3.

No
REFER to Information Bus.

L3 RETRIEVE THE RECORDED DTCs FROM THE ABS MODULE AND IPC (Instrument Panel Cluster) SELF-TESTS

- Check for recorded ABS module and IPC (Instrument Panel Cluster) 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 A Pinpoint Test A: DTC B11E8:16.

For DTC B11E8:17, GO to Pinpoint Test B Pinpoint Test B: DTC B11E8:17.

For the IPC (Instrument Panel Cluster) , REFER to Instrument Panel, Gauges and Warning Indicators.

No
GO to L4.

L4 RECHECK THE ABS MODULE DTCs

- Clear the DTCs.

- Wait 10 seconds.

- Repeat the ABS module self-test.

Is DTC U0155:00 still present?

Yes
GO to L5.

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.

L5 CHECK FOR DTC U0155:00 SET IN OTHER MODULES

- Clear the DTCs.

- Ignition OFF.

- Ignition ON.

- Wait 10 seconds.

- Enter the following diagnostic mode on the scan tool: IPC (Instrument Panel Cluster) Self-Test.

- Retrieve the continuous memory DTCs from all modules.

Is DTC U0155:00 set in the Accessory Protocol Interface Module (APIM) or the Audio Control Module (ACM)?

Yes
INSTALL a new IPC (Instrument Panel Cluster). CLEAR the DTCs. REPEAT the ABS module self-test.

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