Circuit Inspection
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
|---|---|---|---|---|---|
| Connector | Terminal | Connector | Terminal | ||
|
IBU connector | 12 (B-CAN high) | Chassis ground | - | Fig.1 below |
| IBU connector | 11 (B-CAN low) | Chassis ground | - | ||
|
IBU connector | 12 (B-CAN high) | IBU connector | 11 (B-CAN low) | Approx. 60Ω |
Good
- Disconnect B-CAN communication units one by one and monitor DTC to find the cause.
- If the DTC erase, substitute with a known-good unit and check for proper operation. If the problem is corrected, replace the unit and go to "VERIFICATION OF REPAIR " procedure.
No Good
- Check for open, short to battery or ground in B-CAN line.
- Repair as necessary, go to "VERIFICATION OF REPAIR " procedure.