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.

Dtc c1531 bls off stuck

DTC DETECTING CONDITION:A fault is detected if stop light switch signal is OFF for a predetermined time or more with the pressure signal of the pressure sensor high.TROUBLE SYMPTOM:• VDC does no ...

Dtc c1424 ecm

DTC DETECTING CONDITION:A fault is detected if malfunction judgment flag for the engine system is received from ECM for a predetermined time or more.TROUBLE SYMPTOM:• Hill hold does not function ...

Other materials:

To arm the system using the keyless access function (if equipped)
Close all windows and the moonroof (if equipped) Turn the push-button ignition switch to the "OFF" position. Open the doors and get out of the vehicle. Make sure that the engine hood is locked. Close all doors and the rear gate/trunk lid. 1) Door l ...