Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSSUBARU2007OUTBACK LIMITED, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLVEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)DTC C0044 TCM COMMUNICATION CIRCUITTROUBLE SYMPTOM
2007 Subaru Outback Limited, 4D Sedan, Standard
DTC C0044 TCM Communication Circuit: Trouble Symptom
2007 Subaru Outback Limited, 4D Sedan, StandardSECTION Trouble Symptom
- ABS does not operate.
- VDC does not operate.
DIAGNOSTIC PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK LAN SYSTEM. Perform the diagnosis for LAN system. <Ref. to OPERATION , Read Diagnostic Trouble Code (DTC) .> |
Is there any fault in LAN system? | Perform the diagnosis according to DTC for LAN system. | Go to step 2. |
| 2 CHECK POOR CONTACT IN CONNECTORS. | Is there poor contact in TCM connector? | Repair the connector. | Go to step 3. |
| 3 CHECK TCM. | Is the TCM normal? | Go to step 4. | Replace the TCM. <Ref. to TRANSMISSION CONTROL MODULE (TCM) .> <Ref. to TRANSMISSION CONTROL MODULE (TCM) .> |
4 CHECK THE VDCCM&H/U.
|
Is the same DTC displayed? | Replace the VDCCM only. | Go to step 5. |
| 5 CHECK OTHER DTC DETECTION. | Is any other DTC displayed? | Perform the diagnosis according to DTC. | It results from a temporary noise interference. |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.