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 MANUALSSUBARU2014OUTBACK 2.5I, STANDARD TRANSREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESLAN COMMUNICATION SYSTEM (DIAGNOSTICS)CAN COMMUNICATION CIRCUIT CHECKLIST
2014 Subaru Outback 2.5i, Standard Trans
CAN Communication Circuit Check: List
2014 Subaru Outback 2.5i, Standard TransSECTION List
- Bus "A" (MAIN-CAN)
Resistance value between CAN Hi and Lo Contents of inspection Remarks Ground short inspection Refer to GROUND SHORT INSPECTION (BUS "A" (MAIN-CAN)) . Shorted to ground in the communication circuit or control module. Battery short inspection Refer to BATTERY SHORT INSPECTION (BUS "A" (MAIN-CAN)) . Shorted to battery power supply in the communication circuit or control module. 56 - 64 Ω Refer to 56 - 64 Ω . Combined resistance of end resistance does not have malfunction; short to ground or +B short of the CAN communication circuit is possible, however. 55 Ω or less Refer to 55 Ω OR LESS . Resistance is lower than combined resistance of end resistance. Short to CAN Hi and CAN Lo on the CAN communication circuit is possible. 65 Ω or more Refer to 65 Ω OR MORE . Resistance is higher than combined resistance of end resistance. Open circuit of CAN communication circuit is possible. 56 - 64 Ω (TCM) Refer to 56 - 64 Ω (TCM) . No TCM data is received. Perform inspection when faulty is detected. 56 - 64 Ω (Steering angle sensor) Refer to RELATED LINES 56 - 64 Ω (STEERING ANGLE SENSOR) . Perform inspection, when communication failure of steering angle sensor is detected. 56 - 64 Ω (A/C CM) Refer to 56 - 64 Ω (A/C CM) . No A/C data is received. Perform inspection when faulty is detected. 56 - 64 Ω (Electronic parking CM) Refer to 56 - 64 Ω (ELECTRONIC PARKING CM) . No EPB data is received. Perform inspection when faulty is detected. 56 - 64 Ω (Stereo camera) Refer to 56 - 64 Ω (STEREO CAMERA) . No ACC data is received. Perform inspection when faulty is detected. 56 - 64 Ω (Combination meter) Refer to 56 - 64 Ω (COMBINATION METER) . No meter data is received. Perform inspection when faulty is detected. 56 - 64 Ω (Security CM) Refer to 56 - 64 Ω (SECURITY CM) . No security CM data is received. Perform inspection when faulty is detected. 56 - 64 Ω (Airbag) Refer to 56 - 64 Ω (AIRBAG) . Perform inspection, when communication failure of airbag system is detected. 56 - 64 Ω (Remote engine start) Refer to 56 - 64 Ω (REMOTE ENGINE START) . No other data is received. Perform inspection when faulty is not detected. - Bus "B" (Smart system CAN)
Resistance value between CAN Hi and Lo Contents of inspection Remarks Ground short inspection Refer to GROUND SHORT INSPECTION (BUS "B" (SMART SYSTEM CAN)) . Shorted to ground in the communication circuit or control module. Battery short inspection Refer to BATTERY SHORT INSPECTION (BUS "B" (SMART SYSTEM CAN)) . Shorted to battery power supply in the communication circuit or control module. 57 - 63 Ω Refer to 57 - 63 Ω . Combined resistance of end resistance does not have malfunction; short to ground or +B short of the CAN communication circuit is possible, however. 56 Ω or less Refer to 56 Ω OR LESS . Resistance is lower than combined resistance of end resistance. Short to CAN Hi and CAN Lo on the CAN communication circuit is possible. 64 Ω or more Refer to 64 Ω OR MORE . Resistance is higher than combined resistance of end resistance. Open circuit of CAN communication circuit is possible. 57 - 63 Ω (Remote engine start) Refer to 57 - 63 Ω (REMOTE ENGINE START) . No other data is received. Perform inspection when faulty is not detected.
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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.