Circuit Inspection
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
|---|---|---|---|---|---|
| Connector | Terminal | Connector | Terminal | ||
|
AWD ECU connector | 17 (P-CAN high) | Chassis ground | - | Figure below |
| AWD ECU connector | 18 (P-CAN low) | Chassis ground | - | ||
|
HECU connector (With EPB) | 1, 30 (power) | Chassis ground | - | B+ |
| HECU connector (W/O EPB) | 1, 25 (power) | Chassis ground | - | B+ | |
|
HECU connector (With EPB) | 37 (ON/START Input) | Chassis ground | - | B+ |
| HECU connector (W/O EPB) | 32 (ON/START Input) | Chassis ground | - | B+ | |
| HECU connector (With EPB) | 14, 46 (ground) | Chassis ground | - | Approx. below 1Ω | |
| HECU connector (W/O EPB) | 13, 38 (ground) | Chassis ground | - | Approx. below 1Ω | |
| AWD ECU connector | 17 (P-CAN high) | HECU connector (With EPB) | 23 (P-CAN high) | Approx. below 1Ω | |
| AWD ECU connector | 18 (P-CAN low) | HECU connector (With EPB) | 22 (P-CAN low) | Approx. below 1Ω | |
| AWD ECU connector | 17 (P-CAN high) | HECU connector (W/O EPB) | 8 (P-CAN high) | Approx. below 1Ω | |
| AWD ECU connector | 18 (P-CAN low) | HECU connector (W/O EPB) | 7 (P-CAN low) | Approx. below 1Ω | |
|
HECU connector (With EPB) | 23 (P-CAN high) | HECU connector (With EPB) | 22 (P-CAN low) | Approx. 60Ω |
| HECU connector (W/O EPB) | 8 (P-CAN high) | HECU connector (W/O EPB) | 7 (P-CAN low) | Approx. 60Ω | |
Good
- If wiring and connectors are intact and symptoms persist, Check the brake system and replace the HECU if necessary and then go to "VERIFICATION OF REPAIR " procedure.
No 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, or damage.
- Check and repair CAN lines for open circuits or short circuits, go to "VERIFICATION OF REPAIR " procedure.