Subaru Crosstrek Service Manual: Dtc c0044 tcm communication circuit

DTC detecting condition:

No CAN signal from TCM.

Trouble symptom:

• ABS does not operate.

• VDC does not operate.

• EyeSight does not operate.

1.CHECK LAN SYSTEM.

Perform the diagnosis for LAN system. Basic Diagnostic Procedure">

Is there any fault in LAN system?

Perform the diagnosis according to DTC for LAN system. List of Diagnostic Trouble Code (DTC)">

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0044 TCM COMMUNICATION CIRCUIT">Go to Step 2.

2.CHECK POOR CONTACT OF CONNECTORS.

Is there poor contact of TCM connector?

Repair the connector.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0044 TCM COMMUNICATION CIRCUIT">Go to Step 3.

3.CHECK TCM.

Refer to the basic diagnostic procedure for Transmission (diagnostics).

Is the check result OK?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0044 TCM COMMUNICATION CIRCUIT">Go to Step 4.

Replace the TCM. Transmission Control Module (TCM)">

4.CHECK VDCCM&H/U.

1) Perform the Clear Memory Mode. Clear Memory Mode">

2) Perform the Inspection Mode. Inspection Mode">

3) Read the DTC. Read Diagnostic Trouble Code (DTC)">

Is the same DTC displayed?

Replace the VDCCM&H/U. VDC Control Module and Hydraulic Control Unit (VDCCM&H/U)">

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C0044 TCM COMMUNICATION CIRCUIT">Go to Step 5.

5.CHECK DETECTION OF OTHER DTCS FOR VDC.

Read Diagnostic Trouble Code (DTC)">

Is any other DTC displayed?

Perform the diagnosis according to DTC. List of Diagnostic Trouble Code (DTC)">

Currently, it is normal. There may have been a temporary poor contact in the harness and connector or a temporary noise interference.

Dtc c0042 power supply voltage failure

Dtc c0047 can communication

Other materials:

Installation
CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Transmission Mounting SystemINSTALLATION1. PITCHING STOPPER1. Install the pitching stopper.Tightening torque:T1: 50 N·m (5.1 kgf-m, 36.9 ft-lb)T2: 58 N·m (5.9 kgf-m, 42.8 ft-lb)2. Install the air intake boot assembly. Air Intake Boot > ...

Displaying the Radio ID
Each SiriusXM tuner is identified with a unique radio ID. The "Radio ID" is required when activating an SiriusXM Satellite Services or when reporting a problem. If "Ch 000" is selected using the AUDIO/TUNE knob, the ID code will be displayed. Touch the  key. The Radio ID will be ...

STARLINKTM 7.0 Multimedia Plus audio set (U.S. spec. models only, if equipped)
The audio set will operate only when the ignition switch is in the "ACC" or "ON" position. For details about how to use the STARLINKTM 7.0 Multimedia Plus audio set, refer to the STARLINKTM 7.0 Multimedia Plus or STARLINKTM 7.0 Multimedia Navigation Owner's Manual. NOTE HD Radio Techn ...