Circuit Inspection
| Module Circuit Inspection | |||||
|---|---|---|---|---|---|
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
| Connector | Terminal | Connector | Terminal | ||
|
ADAS unit connector | 1 (Memory power) | Chassis ground | - | B+ |
| ADAS unit connector | 3, 12 (ground) | Chassis ground | - | Approx. below 1Ω | |
|
ADAS unit connector | 19 (ACC/ON Input) | Chassis ground | - | B+ |
| ADAS unit connector | 14 (ON/START Input) | Chassis ground | - | B+ | |
| ADAS unit connector | 16 (ON Input) | Chassis ground | - | B+ | |
Good
- Go to next procedure.
No Good
- Repair open or short in circuit and then go to "VERIFICATION OF REPAIR " procedure.
| CAN communication circuit Inspection (E-CAN) | |||||
|---|---|---|---|---|---|
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
| Connector | Terminal | Connector | Terminal | ||
|
ADAS unit connector | 6 (E-CAN high) | Chassis ground | - | Fig.1 |
| ADAS unit connector | 20 (E-CAN low) | Chassis ground | - | ||
|
ADAS unit connector | 6 (E-CAN high) | ICU connector | 31 (E-CAN high) | Approx. below 1Ω |
| ADAS unit connector | 20 (E-CAN low) | ICU connector | 32 (E-CAN low) | Approx. below 1Ω | |
|
ADAS unit connector | 6 (E-CAN high) | ADAS unit connector | 20 (E-CAN low) | Approx. 60Ω |
| ICU (component side) | 31 (E-CAN high) | ICU (component side) | 32 (E-CAN low) | Approx. 120Ω | |
| A/C control module (manual) (component side) | 33 (E-CAN high) | A/C control module (manual) (component side) | 34 (E-CAN low) | Approx. 120Ω | |
| A/C control module (auto) (component side) | 35 (E-CAN high) | A/C control module (auto) (component side) | 34 (E-CAN low) | Approx. 120Ω | |
Good
- Go to next procedure.
No Good
- Repair open or short in circuit and then go to "VERIFICATION OF REPAIR " procedure.
| CAN communication circuit Inspection (C-CAN) | |||||
|---|---|---|---|---|---|
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
| Connector | Terminal | Connector | Terminal | ||
|
HECU connector (W/O EPB) | 4 (C-CAN high) | Chassis ground | - | Fig.2 |
| HECU connector (W/O EPB) | 5 (C-CAN low) | Chassis ground | - | ||
| HECU connector (With EPB) | 19 (C-CAN high) | Chassis ground | - | Fig.2 | |
| HECU connector (With EPB) | 20 (C-CAN low) | Chassis ground | - | ||
|
ICU connector | 20 (C-CAN high) | HECU connector (W/O EPB) | 4 (C-CAN high) | Approx. below 1Ω |
| HECU connector (With EPB) | 19 (C-CAN high) | Approx. below 1Ω | |||
| ICU connector | 19 (C-CAN low) | HECU connector (W/O EPB) | 5 (C-CAN low) | Approx. below 1Ω | |
| HECU connector (With EPB) | 20 (C-CAN low) | Approx. below 1Ω | |||
|
HECU connector (W/O EPB) | 4 (C-CAN high) | HECU connector (W/O EPB) | 5 (C-CAN low) | Approx. 60Ω |
| HECU connector (With EPB) | 19 (C-CAN high) | HECU connector (With EPB) | 20 (C-CAN low) | Approx. 120Ω | |
| ICU (component side) | 20 (C-CAN high) | ICU (component side) | 19 (C-CAN low) | Approx. 120Ω | |
| SRSCM (component side) | 27 (C-CAN high) | SRSCM (component side) | 26 (C-CAN low) | Approx. 120Ω | |
Good
- Carefully re-do this troubleshooting guide steps.
- If no problems were found with the circuits or connectors, replace the ADAS unit and 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, and/or damage.
- Repair open or short in circuit and then go to "VERIFICATION OF REPAIR " procedure.