Pinpoint Test H: DTC U0155:00

Anti-Lock Control

Pinpoint Test H: DTC U0155:00

Refer to Wiring Diagram Set 42, Vehicle Dynamic Systems for schematic and connector information Electrical Diagrams.

Normal Operation

- DTC U0155:00 (Lost Communication With Instrument Panel Cluster (IPC): No Sub Type Information)- this DTC sets in the ABS module if it cannot transmit or receive messages to the Instrument Panel Cluster (IPC) over the High Speed Controller Area Network (HS-CAN) for 5 seconds or longer. The IPC (Instrument Panel Cluster) is used as a gateway module to communicate with modules on the Medium Speed Controller Area Network (MS-CAN).

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors

- IPC (Instrument Panel Cluster)

- ABS module

PINPOINT TEST H : DTC U0155:00

H1 CHECK THE COMMUNICATION NETWORK

- Ignition ON.

- Using a scan tool, carry out the Network Test.

Does the IPC (Instrument Panel Cluster) pass the Network Test?

Yes
GO to H2.

No
REFER to Information Bus.

H2 CHECK THE ABS MODULE CMDTCs (Continuous Memory Diagnostic Trouble Codes)

- Enter the following diagnostic mode on the scan tool: Self Test- ABS Module.

- Using a scan tool, clear the ABS module DTCs.

- Ignition OFF.

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: Self Test- ABS Module.

Is DTC U0155:00 present?

Yes
GO to H3.

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.

H3 CHECK THE ABS MODULE FOR BATTERY VOLTAGE DTCs

- Review the ABS module DTCs retrieved in the previous step.

Is DTC U3003:16 or DTC U3003:17 present?

Yes
GO to Pinpoint Test L Pinpoint Test L: DTCs U3003:16, U3003:17.

No
GO to H4.

H4 CHECK THE IPC (Instrument Panel Cluster) CMDTCs (Continuous Memory Diagnostic Trouble Codes)

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

Is DTC U3006:16 or U3006:17 present?

Yes
DIAGNOSE the IPC (Instrument Panel Cluster) DTCs. REFER to Instrument Panel, Gauges and Warning Indicators.

No
GO to H5.

H5 CHECK FOR DTC U0155:00 SET IN OTHER MODULES

- Enter the following diagnostic mode on the scan tool: Self Test- All CMDTCs (Continuous Memory Diagnostic Trouble Codes).

Is DTC U0155:00 or DTC U0155 set in more than one module?

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

No
INSTALL a new ABS module. REFER to Hydraulic Control Unit (HCU) Service and Repair. TEST the system for normal operation.