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 MANUALSMITSUBISHI2012LANCER RALLIARTREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESCONTROLLER AREA NETWORK (CAN) - LANCER
2012 Mitsubishi Lancer Ralliart
Controller Area Network (Can) - Lancer
2012 Mitsubishi Lancer RalliartSECTION Controller Area Network (Can) - Lancer
- General Information
- Special Tools
- Test Equipment
- Service Precautions
- Precautions On How To Repair The Can Bus Lines
- Explanation About The Scan Tool (M.U.T.-III) Can Bus Diagnostics
- Diagnostic Trouble Code Diagnosis
- Diagnosis
- Can Bus Diagnostics Table
- Can-Related Connector Position
- Can Bus Diagnostics
- DIAGNOSTIC ITEM 1: Diagnose When The Scan Tool Cannot Receive The Data Sent By ETACS-ECU
- DIAGNOSTIC ITEM 2: Malfunction Of The ETACS-ECU
- DIAGNOSTIC ITEM 3: Abnormal Short Between The CAN-C Bus Lines
- DIAGNOSTIC ITEM 4: Diagnose Shorts In The Ground To CAN-C Bus Line
- DIAGNOSTIC ITEM 5: Diagnose Shorts In The Power Supply To CAN-C Bus Line
- DIAGNOSTIC ITEM 6: Diagnose When The Scan Tool Cannot Receive The Data Sent By Steering Wheel Sensor
- DIAGNOSTIC ITEM 7: Diagnose When The Scan Tool Cannot Receive The Data Sent By AWD-ECU - Electronic Controlled AWD
- DIAGNOSTIC ITEM 8: Diagnose When The Scan Tool Cannot Receive The Data Sent By AWC-ECU - RALLIART
- DIAGNOSTIC ITEM 9: Diagnose When The Scan Tool Cannot Receive The Data Sent By ABS-ECU - Vehicles Without ASC Or ASC-ECU - Vehicles With ASC
- DIAGNOSTIC ITEM 10: Diagnose When The Scan Tool Cannot Receive The Data Sent By Shift Lever - RALLIART
- DIAGNOSTIC ITEM 11: Diagnose When The Scan Tool Cannot Receive The Data Sent By TCM - CVT
- DIAGNOSTIC ITEM 12: Diagnose When The Scan Tool Cannot Receive The Data Sent By Electric Power Steering-ECU - Vehicles With Electric Power Steering
- DIAGNOSTIC ITEM 13: Diagnose When The Scan Tool Cannot Receive The Data Sent By Transaxle Assembly (TC-SST-ECU) - RALLIART
- DIAGNOSTIC ITEM 14: Diagnose When The Scan Tool Cannot Receive The Data Sent By ECM
- DIAGNOSTIC ITEM 15: Diagnose The Lines Between The ETACS-ECU And Joint Connector (CAN2)
- DIAGNOSTIC ITEM 16: Diagnose The Lines Between Joint Connector (CAN2) And Joint Connector (CAN3)
- DIAGNOSTIC ITEM 17: Diagnose The Lines Between Joint Connector (CAN3) And Joint Connector (CAN4) - RALLIART
- DIAGNOSTIC ITEM 18: Diagnose When The Scan Tool Cannot Receive The Data Sent By KOS-ECU - Vehicles With KOS
- DIAGNOSTIC ITEM 19: Diagnose When The Scan Tool Cannot Receive The Data Sent By WCM - Vehicles With WCM
- DIAGNOSTIC ITEM 20: Diagnose When The Scan Tool Cannot Receive The Data Sent By SRS-ECU
- DIAGNOSTIC ITEM 21: Diagnose When The Scan Tool Cannot Receive The Data Sent By A/C-ECU - Vehicles With A/C - Or Heater Control Unit - Vehicles Without A/C
- DIAGNOSTIC ITEM 22: Diagnose When The Scan Tool Cannot Receive The Data Sent By Radio And CD Player - Vehicles With Radio And CD Player
- DIAGNOSTIC ITEM 23: Diagnose When The Scan Tool Cannot Receive The Data Sent By CAN Box Unit - Vehicles With MMCS
- DIAGNOSTIC ITEM 24: Diagnose When The Scan Tool Cannot Receive The Data Sent By Combination Meter
- DIAGNOSTIC ITEM 25: Diagnose When The Scan Tool Cannot Receive The Data Sent By Occupant Classification-ECU
- DIAGNOSTIC ITEM 26: Diagnose When The Scan Tool Cannot Receive The Data Sent By Satellite Radio Tuner - Vehicles With Satellite Radio Tuner
- DIAGNOSTIC ITEM 27: Short To Power Supply Or Ground In Both CAN_H And CAN_L Lines
- DIAGNOSTIC ITEM 28: Diagnose The ETACS-ECU, Joint Connector (CAN1) Or Lines Between ETACS-ECU And Joint Connector (CAN1)
- DIAGNOSTIC ITEM 29: Short To Power Supply Or Ground, Open Circuit Or Line-To-Line Short In The CAN-B Bus Lines
- Can Communication-Related DTC (U-Code) Table
RENDER: 1.0x
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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.