Subaru Crosstrek Service Manual: Dtc u0122 lost communication with vehicle dynamics control module

Subaru Crosstrek Service Manual / Continuously variable transmission (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc u0122 lost communication with vehicle dynamics control module

CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE

NOTE:

Refer to “LAN SYSTEM (DIAGNOSTICS)” for diagnostic procedures. Basic Diagnostic Procedure">

1. OUTLINE OF DIAGNOSIS

• Detect malfunction of CAN communication.

• Judge as NG when CAN communication with VDCCM is not possible.

2. EXECUTION CONDITION

Secondary Parameters	Execution condition
12 V battery system voltage	≥ 10 V
Measured turbine shaft speed	> 0 rpm
or
Transmission range	Drive or Reverse

3. DIAGNOSTIC METHOD

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Judgment Value

Malfunction Criteria	Threshold Value
CAN data from Vehicle Dynamics Control Module	Lost

Time Needed for Diagnosis: 0.5 seconds

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

Dtc u0100 lost communication with ecm/pcm a

CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0100 LOST COMMUNICATION WITH ECM/PCM “A”NOTE:Refer to “LAN SYSTEM (D ...

Dtc u0140 lost communication with body control module

CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0140 LOST COMMUNICATION WITH BODY CONTROL MODULENOTE:Refer to “LAN SYSTEM (DIAGN ...

Other materials:

Operation
SUNROOF/T-TOP/CONVERTIBLE TOP (SUNROOF) > Sunroof Control SystemOPERATION1. INITIALIZE OPERATIONCAUTION:During initialization, perform the position learning and the sliding learning. Sliding learning mode can not be initiated unless the position learning is performed.NOTE:When initialize operatio ...

Dtc u0401 invalid data received from ecm/pcm a
TELEMATICS SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM “A”Detected when CAN data from ECM is abnormal.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE"> ...

U.S.-spec. models (type B)
The illustration above is a typical example. For some models, the combination meter may be slightly different than that shown in the illustration. Tachometer Multi information display Fuel gauge Select lever/gear position indicator Speedometer Information display selection knob ...