CAN Communication Line Inspection
WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
| Item | Normal Value | Prerequisite Condition | Probe (+) | Probe (-) |
|---|---|---|---|---|
| CAN Communication circuit (open, short): resistance | Infinite | Ignition switch: OFF | A/C Control Module harness' CAN High terminal | Chassis ground |
| A/C Control Module harness' CAN Low terminal | Chassis ground | |||
| CAN Communication circuit (open, short): voltage | Approx. below 5V | Ignition switch: ON | A/C Control Module harness' CAN High terminal | Chassis ground |
| A/C Control Module harness' CAN Low terminal | Chassis ground | |||
| CAN Communication circuit (Open): resistance | Approx. below 1Ω | A/C Control Module, engine ECM (PCM) connector: Disconnected Ignition switch: OFF |
A/C Control Module harness' CAN High terminal | Engine ECM (PCM) harness' CAN High terminal |
| A/C Control Module harness' CAN Low terminal | Engine ECM (PCM) harness' CAN Low terminal |
- Is the result within specifications?
YES
- Fault is intermittent caused by poor contact of connectors or wire harness. Or, the control module's memory was not cleared after repair. Thoroughly check connectors for looseness, poor connection, bending, corrosion, deterioration, or damage.
- Repair or replace relevant component (s) as necessary and then go to "VERIFICATION OF VEHICLE REPAIR ".
NO
- Repair an open or short in the CAN Communication Circuit. Then go to "VERIFICATION OF VEHICLE REPAIR ".