Pinpoint Test F: DTC U0101:00

Anti-Lock Control

Pinpoint Test F: DTC U0101:00

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

Normal Operation

- DTC U0101:00 (Lost Communication With TCM: No Sub Type Information- this DTC sets in the ABS module if the PRNDL message that should be received from the Transmission Control Module (TCM) is missing for 5 seconds or longer.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors

- TCM (Transmission Control Module)

- ABS module

PINPOINT TEST F : DTC U0101

F1 CHECK THE COMMUNICATION NETWORK

- Ignition ON.

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

Does the TCM (Transmission Control Module) pass the Network Test?

Yes
GO to F2.

No
REFER to Information Bus.

F2 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 U0101:00 present?

Yes
GO to F3.

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.

F3 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 F4.

F4 CHECK THE TCM (Transmission Control Module) CMDTCs (Continuous Memory Diagnostic Trouble Codes)

- Enter the following diagnostic mode on the scan tool: Self Test- TCM (Transmission Control Module).

Is DTC P0702, P0882 or P0883 present?

Yes
DIAGNOSE the TCM (Transmission Control Module) DTCs. REFER to Automatically Shifted Manual Transmission/Transaxle.

No
GO to F5.

F5 CHECK FOR DTC U0101 SET IN OTHER MODULES

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

Is DTC U0101:00 or DTC U0101 set in more than one module?

Yes
INSTALL a new TCM (Transmission Control Module). TEST the system for normal operation. 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.