Circuit Inspection
WARNING: This page is about a different car, the 2024 Kia Sorento. However, it is still accessible from the selected car via links, so may be relevant.
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
|---|---|---|---|---|---|
| Connector | Terminal | Connector | Terminal | ||
|
IBU connector | 36 (B-CAN high) | Chassis ground | - | Fig.1 |
| IBU connector | 35 (B-CAN low) | Chassis ground | - | ||
|
IBU connector | 4, 11, 13, 14, 24 (power) | Chassis ground | - | B+ |
|
IBU connector | 6, 14 (ground) | Chassis ground | - | Approx. below 1Ω |
| IBU connector | 36 (B-CAN high) | ICU connector | 7 (B-CAN high) | Approx. below 1Ω | |
| IBU connector | 35 (B-CAN low) | ICU connector | 23 (B-CAN low) | Approx. below 1Ω | |
| IBU connector | 36 (B-CAN high) | Chassis ground | - | ∞ (infinity)Ω | |
| IBU connector | 35 (B-CAN low) | Chassis ground | - | ∞ (infinity)Ω | |
|
IBU (component side) | 36 (ground) | IBU (component side) | 35 (B-CAN low) | Approx. 120Ω |
| ICU (component side) | 7 (B-CAN high) | ICU (component side) | 23 (B-CAN low) | Approx. 120Ω | |
Good
- Fault might be intermittent and caused either by poor contact in connectors or wiring harness, or it has been repaired and control module memory is not cleared yet. Thoroughly check terminal of battery, all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
- Repair or replace as necessary and go to "Verification Of Repair " procedure.
No Good
- If the measured value is the battery voltage, check whether it is short to battery power and perform the "Verification Of Repair " procedure after repair.
- Remove the unit/module connectors that make up the ICU, IBU and B-CAN communication network respectively and check if the fault codes are cleared.
- If the measured value is approximately 0V, check for short circuit to ground, short circuit to each other, or open circuit, and perform the "Verification Of Repair " procedure after repair.