Subaru Crosstrek manuals

Subaru Crosstrek Service Manual: Dtc u0073 control module communication bus off

ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC U0073 CONTROL MODULE COMMUNICATION BUS OFF

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 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.

Judgment Value

Malfunction Criteria

Threshold Value

CAN bus condition

Bus off

Time Needed for Diagnosis: 436 ms

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

Dtc u0423 invalid data received from instrument panel cluster control module
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULENOTE:For the diagnostic procedure, re ...

Dtc p0128 coolant thermostat (engine coolant temperature below thermostat regulating temperature)
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0128 COOLANT THERMOSTAT (ENGINE COOLANT TEMPERATURE BELOW THERMOSTAT REGULATING TEMPERATURE)DTC detecting co ...

Other materials:

Inspection
POWER ASSISTED SYSTEM (POWER STEERING) > Steering WheelINSPECTION1. PADDLE SHIFT SWITCHCheck the resistance of paddle switch.STEPCHECKYESNO1.SHIFT-UP SWITCH CONTINUITY CHECK.1) Operate the + side of paddle shift assembly and hold it.2) Measure the resistance between terminals of the paddle shift ...

BSD/RCTA approach indicator light
BSD/RCTA approach indicator light It is mounted on each side of the outside mirrors. The indicator light will illuminate when a vehicle approaching from behind is detected. The indicator light will flash to warn the driver of dangers under the following conditions. While the indic ...

General precautions regarding SRS airbag system
WARNING To obtain maximum protection in the event of an accident, the driver and all passengers must always wear seatbelts when in the vehicle. The SRS airbag is designed only to be a supplement to the primary protection provided by the seatbelt. It does not eliminate the need to ...

© 2016-2019 Copyright www.sucross.com