Section 2 (LAN Communication System (Diagnostics))
WARNING: This page is about a different car, the 2021 Subaru Ascent. 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
- Diagnostic Procedure for Subaru Select Monitor Communication
- CAN bus check
- CAN Communication Circuit Check
- Procedure
- List
- Inspection
- Ground Short Inspection
- Check Power Supply Short
- Greater Than 52 Ω And Less Than 62 Ω
- 52 Ω Or Less
- 62 Ω Or More
- Related Lines, More Than 52 Ω And Less Than 62 Ω (TCM)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Steering Angle Sensor)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (A/C Control Module)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Power Steering)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Combination Meter)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Infotainment System)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Airbag)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Keyless Access System)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Headlight Beam Leveler)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Remote Engine Starter)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (BSD/RCTA)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Stereo Camera)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Immobilizer)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Telematics)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (RAB)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (VDC)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Keyless Entry/TPMS)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (MFD)
- RELATED LINES, MORE THAN 52 Ω AND LESS THAN 62 Ω (EyeSight ASSIST MONITOR)
- Related Lines, More Than 52 Ω And Less Than 62 Ω (Rear View Mirror)
- 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 U0100: Lost Communication With ECM/Pcm "A"
- DTC U0101: Lost Communication With TCM
- DTC U0122: Lost Communication With Vehicle Dynamics Control Module
- DTC U0126: Lost Communication With Steering Angle Sensor Module
- DTC U0127: Lost Communication With Tire Pressure Monitor Control Module And/Or Keyless Entry Control Module
- DTC U0128: Lost Communication With Park Brake 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 U0167: Lost Communication With Immobilizer Control Module
- DTC U0181: Lost Communication With Headlamp Leveling 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 U0416: Invalid Data Received From Vehicle Dynamics Control Module
- DTC U0417: Invalid Data Received From Park Brake 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 U0426: Invalid Data Received From Immobilizer Control Module
- DTC U0427: Invalid Data Received From Vehicle Security Control Module
- DTC U0428: Invalid Data Received From Steering Angle Sensor Module
- DTC U0430: Invalid Data Received From Tire Pressure Monitor Control Module And/Or Keyless Entry Control 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 U1073: Control Module Communication Bus "Sonar-Can" Off
- DTC U1120: Lost Communication With AUTOSTART Stop Control Module
- DTC U1140: Lost Communication With Body Control Module Body-Can
- DTC U1198: Lost Communication With Telematics System
- 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 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
- 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
- At Oil Temperature Warning Light Is Blinking
- 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