Circuit Inspection
WARNING: This page is about a different car, the 2021 Kia Seltos. However, it is still accessible from the selected car via links, so may be relevant.
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
|---|---|---|---|---|---|
| Connector | Terminal | Connector | Terminal | ||
|
WPC connector | 6 (B-CAN high) | Chassis ground | - | Fig.1 |
| WPC connector | 5 (B-CAN low) | Chassis ground | - | ||
|
WPC connector | 12 (Memory power) | Chassis ground | - | B+ |
| WPC connector | 11 (ON/START Input) | Chassis ground | - | B+ | |
|
WPC connector | 1, 2 (ground) | Chassis ground | - | Approx. below 1Ω |
|
WPC connector | 6 (B-CAN high) | Chassis ground | - | ∞ (infinity)Ω |
| WPC connector | 5 (B-CAN low) | Chassis ground | - | ∞ (infinity)Ω | |
|
WPC connector | 6 (B-CAN high) | WPC connector | 5 (B-CAN low) | Approx. 60Ω |
| IBU (with smart key) (component side) | 35 (B-CAN high) | IBU (with smart key) (component side) | 36 (B-CAN low) | Approx. 120Ω | |
| IBU (W/O smart key) (component side) | 25 (B-CAN high) | IBU (W/O smart key) (component side) | 26 (B-CAN low) | Approx. 120Ω | |
| ICU (component side) | 5 (B-CAN high) | ICU (component side) | 15 (B-CAN low) | Approx. 120Ω | |
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 and short to ground in B-CAN line.
- Repair as necessary, go to "VERIFICATION OF REPAIR " procedure.