Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc c1431 at

Subaru Legacy BN/BS (2015-2019) Service Manual / Vehicle dynamics control (vdc) (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc c1431 at

DTC DETECTING CONDITION:

A fault is detected if malfunction flag is received from TCM.

TROUBLE SYMPTOM:

• VDC does not operate.

• Hill hold does not function.

• EyeSight does not operate. (Models with EyeSight)

STEP	CHECK	YES	NO
1.CHECK TCM. 1) Start the engine. 2) Check DTC of TCM. Read Diagnostic Trouble Code (DTC)	Is DTC displayed-	Perform the diagnosis according to DTC. List of Diagnostic Trouble Code (DTC)	Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C1431 AT
2.CHECK VDCCM&H/U. 1) Turn the ignition switch to OFF. 2) After turning the ignition switch to ON for approx. 10 seconds, turn it to OFF. 3) Turn the ignition switch to ON again. 4) Perform the Clear Memory Mode. Clear Memory Mode 5) Perform the Inspection Mode. Inspection Mode 6) 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 C1431 AT
3.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 poor contact in the harness and connector or a temporarily noise interference.

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Other materials:

Center console
The center console box provides a storage space. 1) Coin tray 2) Accessory tray The lid located inside the center console can be used as a coin tray or an accessory tray for small items. 1) Pen holder 2) Card holder When the lid inside the center console is removed, you can use the ...