TX6A Automatic Transmission System

TX6A AUTOMATIC TRANSMISSION / TRANSAXLE: AUTOMATIC TRANSMISSION SYSTEM: U0100, U0122, U0140, U0155; Lost Communication with ECM / PCM "A"; 2013 MY FR-S [03/2012 -]
U0100 - Lost Communication with ECM / PCM "A"
U0122 - Lost Communication with Vehicle Dynamics Control Module
U0140 - Lost Communication with Body Control Module
U0155 - Lost Communication with Instrument Panel Cluster Control Module (Combination Meter)

DESCRIPTION

The TCM receives and transmits signals from each ECU using CAN communication.

HINT
* Problems on the CAN bus (communication line) can be detected from the DLC3 connector (Except when the DLC3 branch line is open).
* By using the Techstream, it is possible to check CAN communication DTC.
* The DLC3 is connected to the CAN communication line, but the CAN communication is unable to detect problems on the DLC3 branch line.





MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS

U0100: Lost Communication with TCM

*





U0122: Lost Communication with VSC

*





INSPECTION PROCEDURE

NOTICE:
Perform the universal trip to clear permanent DTCs Reading and Clearing Diagnostic Trouble Codes.

PROCEDURE

1. CHECK OTHER DTC OUTPUT

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON and push the Techstream main switch ON.

(c) Read the DTCs using the Techstream Reading and Clearing Diagnostic Trouble Codes.

Result:





B -- GO TO P160A P160A
A -- Continue to next step.

2. CHECK DTC OUTPUT

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON and push the Techstream main switch ON.

(c) Read the DTCs using the Techstream Reading and Clearing Diagnostic Trouble Codes.

NEXT -- GO TO CAN COMMUNICATION SYSTEM TX6A Automatic Transmission