Subaru Crosstrek Service Manual: Dtc u0122 lost communication with vehicle dynamics control module
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE
NOTE:
For the diagnostic procedure, refer to LAN section. Basic Diagnostic Procedure">
1. OUTLINE OF DIAGNOSIS
Detect malfunction of CAN communication.
Judge as NG when CAN communication failure between TCM, VDC CM and combination meter has occurred.
2. COMPONENT DESCRIPTION
(Common Specifications)
CAN Protocol 2.0 B (Active)
Frame Format: 11 Bit ID Frame (Standard Frame)
Conforms to ISO11898
Communication Speed: 500 kbps
3. EXECUTION CONDITION
Secondary Parameters | Execution condition |
Battery voltage | ≥ 10.9 V |
4. GENERAL DRIVING CYCLE
Perform the diagnosis continuously after starting the engine.
5. DIAGNOSTIC METHOD
Judge as NG when the following conditions are established.
Malfunction Criteria | Threshold Value |
CAN data from vehicle dynamics control module | = Lost |
Time Needed for Diagnosis: 500 ms
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
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Other materials:
Operating ranges
Antenna
Operating range
The operating range of the door locking/
unlocking function is approximately 16
to 32 in (40 to 80 cm) from the respective
door handle.
The operating range of the rear gate
locking/unlocking function is approximately
16 to 32 in (40 to 80 cm) from t ...
Auto light sensor sensitivity setting
1. Perform the preparation steps according
to "Preparation for car settings"
2. Operate the " " or "
" switch to
select the "Auto Light Sensor" item. Then
push the button.
3. The current setting will be displayed.
Push the button to enter the
selection
mode.
4. Selec ...
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