Signal Circuit Inspection
| Item | Prerequisite Condition | Normal Value | Probe (+) | → | Probe (-) | |
|---|---|---|---|---|---|---|
| Harness Connector | Measure Terminal | |||||
| C-CAN High Open/Short: Voltage |
|
Below 5V (Within 1.5V ~ 3.5V) | HUD* | _"C-CAN High" | → | Chassis Ground |
| C-CAN Low Open/Short: Voltage | _"C-CAN Low" | → | ||||
- Is the result within the Normal Value?
YES
- Unplug the unit/modules from the C-CAN network individually and monitor whether the DTC is cleared.
→ When the DTC is cleared, replace the unit/module with a working test sample and check for proper operation.
NO
- When the measured value is Battery Voltage Level (12V), → Repair Short between the abnormal harness/connector and Battery Power.
- When the measured value is Ground Level (0V), → Repair Short between "C-CAN High" line and "C-CAN Low" line.
→ Repair Open/Poor Contact in the abnormal harness/connector.
→ Repair Short between the abnormal harness/connector and Chassis Ground.