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.
| Module Circuit Inspection | |||||
|---|---|---|---|---|---|
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
| Connector | Terminal | Connector | Terminal | ||
|
4WD ECU connector | 13 (Memory power) | Chassis ground | - | B+ |
| 4WD ECU connector | 14 (ground) | Chassis ground | - | Approx. below 1Ω | |
|
4WD ECU connector | 15 (ON/START Input) | Chassis ground | - | B+ |
| CAN communication circuit Inspection | |||||
|---|---|---|---|---|---|
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
| Connector | Terminal | Connector | Terminal | ||
|
HECU connector (W/O EPB) | 8 (P-CAN high) | Chassis ground | - | Fig.1 |
| HECU connector (W/O EPB) | 7 (P-CAN low) | Chassis ground | - | ||
| HECU connector (With EPB) | 23 (P-CAN high) | Chassis ground | - | Fig.1 | |
| HECU connector (With EPB) | 22 (P-CAN low) | Chassis ground | - | ||
|
4WD ECU connector | 2 (P-CAN high) | Chassis ground | - | ∞ (infinity)Ω |
| 4WD ECU connector | 1 (P-CAN low) | Chassis ground | - | ∞ (infinity)Ω | |
|
HECU connector (W/O EPB) | 8 (P-CAN high) | 4WD ECU connector | 2 (P-CAN high) | Approx. below 1Ω |
| HECU connector (With EPB) | 23 (P-CAN high) | ||||
| HECU connector (W/O EPB) | 7 (P-CAN low) | 4WD ECU connector | 1 (P-CAN low) | Approx. below 1Ω | |
| HECU connector (With EPB) | 22 (P-CAN low) | ||||
|
HECU connector (W/O EPB) | 8 (P-CAN high) | HECU connector (W/O EPB) | 7 (P-CAN low) | Approx. 60Ω |
| HECU connector (With EPB) | 23 (P-CAN high) | HECU connector (With EPB) | 22 (P-CAN low) | Approx. 60Ω | |
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 then go to "VERIFICATION OF REPAIR " procedure.
No Good
- Carefully re-do this troubleshooting guide steps.
- If no problems were found with the circuits or connectors, replace 4WD ECU and then go to "VERIFICATION OF REPAIR " procedure.