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.
CAN Main Bus Line for Disconnection: Procedure
- CHECK DLC3Β
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester connection Switch Condition Specified Condition Proceed to D4-6 (CANH) - D4-14 (CANL) Ignition switch OFF 108 to 132 Ξ© A D4-6 (CANH) - D4-14 (CANL) Ignition switch OFF 132 Ξ© or higher B NOTE:When the measured value is 132 Ξ© or more and a CAN communication system diagnostic code is output, there may be a fault other than a disconnection of the DLC3 sub bus line.
For that reason, troubleshooting should be performed again from "How to Proceed with Troubleshooting" after repairing the trouble area.
- Measure the resistance according to the value(s) in the table below.
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.