Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUBARU2022IMPREZA BASE, 4D SEDAN, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 3 (LAN COMMUNICATION SYSTEM (DIAGNOSTICS) (HEV))
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT Trans
Section 3 (LAN Communication System (Diagnostics) (HEV))
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT TransSECTION Section 3 (LAN Communication System (Diagnostics) (HEV))
WARNING: This page is about a different car, the 2022 Subaru Crosstrek. However, it is still accessible from the selected car via links, so may be relevant.
- Basic Diagnostic Procedure
- Check List for Interview
- General Description
- Electrical Component Location
- Control Module I/O Signal
- Electrical Specification
- Central Gateway Control Module
- Body Integrated Unit
- ECM
- VDC Control Module & H/U
- Electric Brake Booster Control Module (EBBCM)
- AWD Control Module
- Power Steering Control Module
- A/C Control Panel
- Combination Meter
- MFD
- Airbag Control Module
- Keyless Access Control Module
- TPMS Control Module
- Auto Headlight Beam Leveler Control Module
- Radar Sensor
- Audio Or Navigation Unit
- Data Communication Module (DCM)
- RAB Control Module
- Stereo Camera
- Pedestrian Alert Control Module
- Hybrid Vehicle Control Ecu Assembly
- Inverter With Converter Assembly
- Electric Vehicle Charger Assembly
- Battery Ecu Assembly
- Data Link Connector
- Electrical Specification
- Diagnostic Procedure for Subaru Select Monitor Communication
- CAN bus check
- CAN Communication Circuit Check
- Procedure
- List
- Inspection
- Ground Short Inspection (Main-Can)
- Power Short Inspection (Main-Can)
- More Than 52 Ω And Less Than 62 Ω (Main-Can)
- 52 Ω Or Less (Main-Can)
- 62 Ω Or More (Main-Can)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Main-Can_AWD)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Main-Can_Power Steering)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Main-Can_VDC)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Main-Can_Steering Angle Sensor)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Main-Can_Airbag)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Main-Can_Stereo Camera)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Main-Can_Telematics)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Main-Can_BSD/RCTA)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Main-Can_RAB)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Main-Can_TPMS)
- Ground Short Inspection (Body-Can)
- Power Short Inspection (Body-Can)
- More Than 52 Ω And Less Than 62 Ω (Body-Can)
- 52 Ω Or Less (Body-Can)
- 62 Ω Or More (Body-Can)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Body-Can_Pedestrian Alert)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Body-Can_Auto Headlight Beam Leveler)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Body-Can_Keyless Access System)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Body-Can_A/C Control Panel)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Body-Can_Infotainment System)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Body-Can_Telematics)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Body-Can_Combination Meter)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Body-Can_MFD)
- Ground Short Inspection (P-Can)
- Power Short Inspection (P-Can)
- More Than 56 Ω And Less Than 64 Ω (P-Can)
- 56 Ω Or Less (P-Can)
- 64 Ω Or More (P-Can)
- RELATED LINES, MORE THAN 56 Ω AND LESS THAN 64 Ω (P-CAN_Hybrid vehicle control ECU assembly)
- Related Lines, More Than 56 Ω And Less Than 64 Ω (P-Can_EBBCM)
- Related Lines, More Than 56 Ω And Less Than 64 Ω (P-Can_Central Gateway)
- RELATED LINES, MORE THAN 56 Ω AND LESS THAN 64 Ω (P-CAN_Inverter with converter assembly)
- RELATED LINES, MORE THAN 56 Ω AND LESS THAN 64 Ω (P-CAN_Electric vehicle charger assembly (charge control ECU))
- Ground Short Inspection (C-Can)
- Power Short Inspection (C-Can)
- More Than 56 Ω And Less Than 64 Ω (C-Can)
- 56 Ω Or Less (C-Can)
- 64 Ω Or More (C-Can)
- RELATED LINES, MORE THAN 56 Ω AND LESS THAN 64 Ω (C-CAN_Hybrid vehicle control ECU assembly)
- Related Lines, More Than 56 Ω And Less Than 64 Ω (C-Can_EBBCM)
- Related Lines, More Than 56 Ω And Less Than 64 Ω (C-Can_Stereo Camera)
- Related Lines, More Than 56 Ω And Less Than 64 Ω (C-Can_RAB)
- Diagnostic Trouble Code (DTC)
- Diagnostic Procedure with Diagnostic Trouble Code (DTC)
- DTC U0073: Control Module Communication Bus Off
- DTC U0074: Control Module Communication Bus "Body-Can" Off
- DTC U0075: Control Module Communication Bus "PU-Can" Off
- DTC U0078: Control Module Communication Bus "C-Can" Off
- DTC U0100: Lost Communication With ECM/Pcm "A"
- DTC U0101: Lost Communication With TCM
- DTC U0110: Lost Communication With Drive Motor Control Module "A"
- DTC U0122: Lost Communication With Vehicle Dynamics Control Module
- DTC U0126: Lost Communication With Steering Angle Sensor Module
- DTC U0128: Lost Communication With Park Brake Control Module
- DTC U0129: Lost Communication With Brake System Control Module
- DTC U0131: Lost Communication With Power Steering Control Module
- DTC U0140: Lost Communication With Body Control Module
- DTC U0151: Lost Communication With Restraints Control Module
- DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module
- DTC U0156: Lost Communication With Information Center "A"
- DTC U0162: Lost Communication With Audio Visual Navigation Display Module
- DTC U0164: Lost Communication With HVAC Control Module
- DTC U0181: Lost Communication With Headlamp Leveling Control Module
- DTC U0293: Lost Communication With Hybrid Powertrain Control Module
- DTC U0327: Software Incompatibility With Vehicle Security Control Module
- DTC U0401: Invalid Data Received From ECM/Pcm "A"
- DTC U0402: Invalid Data Received From TCM
- DTC U0411: Invalid Data Received From Drive Motor Control Module "A"
- DTC U0412: Invalid Data Received From Battery Energy Control Module
- DTC U0416: Invalid Data Received From Vehicle Dynamics Control Module
- DTC U0417: Invalid Data Received From Park Brake Control Module
- DTC U0418: Invalid Data Received From Brake System Control Module
- DTC U0420: Invalid Data Received From Power Steering Control Module
- DTC U0422: Invalid Data Received From Body Control Module
- DTC U0423: Invalid Data Received From Instrument Panel Cluster Control Module
- DTC U0424: Invalid Data Received From HVAC Control Module
- DTC U0427: Invalid Data Received From Vehicle Security Control Module
- DTC U0428: Invalid Data Received From Steering Angle Sensor Module
- DTC U0452: Invalid Data Received From Restraints Control Module
- DTC U0457: Invalid Data Received From Information Center "A"
- DTC U0463: Invalid Data Received From Navigation Display Module
- DTC U0594: Invalid Data Received From Hybrid Powertrain Control Module
- DTC U1073: Control Module Communication Bus "Sonar-Can" Off
- DTC U1100: Lost Communication With ECM/Pcm PU-Can
- DTC U1107: Software Incompatibility With Vehicle Security Control Module
- DTC U1120: Lost Communication With AUTOSTART Stop Control Module
- DTC U1122: Lost Communication With Vehicle Dynamics Control Module C-Can
- DTC U1140: Lost Communication With Body Control Module Body-Can
- DTC U1146: Lost Communication With Gateway "A" Body-Can
- DTC U1170: Lost Communication With Brake System Control Module PU-Can
- DTC U1175: Lost Communication With Battery Energy Control Module
- DTC U1198: Lost Communication With Telematics System
- DTC U119B: Lost Communication With Battery Charger Control Module PU-Can
- DTC U1232: Lost Communication With Rear/Side Radar Control Module
- DTC U1233: Lost Communication With RAB Control Module
- DTC U1235: LOST COMMUNICATION WITH EyeSight
- DTC U1259: Lost Communication With AWD Control Module
- DTC U128E: LOST COMMUNICATION WITH EyeSight C-CAN
- DTC U128F: Lost Communication With Hybrid Powertrain Control Module C-Can
- DTC U12AF: Lost Communication With Pedestrian Alert
- DTC U1416: Invalid Data Received From Vehicle Dynamics Control Module C-Can
- DTC U1422: Invalid Data Received From Body Control Module Body-Can
- DTC U1433: INVALID DATA RECEIVED FROM EyeSight
- DTC U1469: Invalid Data Received From AUTOSTART Stop Control Module
- DTC U1499: Invalid Data Received From Telematics System
- DTC U1533: Invalid Data Received From Rear/Side Radar Control Module
- DTC U1534: Invalid Data Received From Sonar Ecu
- DTC U158F: INVALID DATA RECEIVED FROM EyeSight C-CAN
- DTC U1590: Invalid Data Received From Hybrid Powertrain Control Module C-Can
- Diagnostics with Phenomenon
- List
- Inspection
- DTC Other Than U-Code Is Displayed
- Faster/Slower Vehicle Speed Than The Actual Speed Is Displayed
- More/Less Fuel Than The Actual Amount Is Displayed
- Fuel Level Warning Light Illuminates Despite Of Sufficient Fuel
- Engine Coolant Temperature Light Blinks In Red And Blue Alternately
- [S], [I] Or [S#] Indicator Is Blinking
- The VDC Warning Light Illuminates
- VDC-Off Indicator Illuminates
- Brake Warning Light Illuminates
- Shift Position Is Not Displayed
- Door Indicator Is Not Displayed
- Clearance Indicator Does Not Illuminate
- Hi Beam Indicator Does Not Illuminate
- Front Fog Light Indicator Does Not Illuminate
- Illumination Is Fixed At The Maximum Brightness
- Cruise Control Indicator Does Not Illuminate
- AWD Indicator Illuminates
- Hill Hold Indicator Does Not Illuminate
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.