Circuit Inspection
| Module Circuit Inspection | |||||
|---|---|---|---|---|---|
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
| Connector | Terminal | Connector | Terminal | ||
|
MDPS connector | 1 (Memory power) | Chassis ground | - | B+ |
| MDPS connector | 2 (ground) | Chassis ground | - | Approx. below 1Ω | |
|
MDPS connector | 1 (ON/START 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 (W/O EPB) | |||||
|---|---|---|---|---|---|
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
| Connector | Terminal | Connector | Terminal | ||
|
HECU connector | 4 (C-CAN high) | Chassis ground | - | Fig.1 |
| HECU connector | 5 (C-CAN low) | Chassis ground | - | ||
|
HECU connector | 4 (C-CAN high) | MDPS connector | 7 (C-CAN high) | Approx. below 1Ω |
| HECU connector | 5 (C-CAN low) | MDPS connector | 8 (C-CAN low) | Approx. below 1Ω | |
|
HECU connector | 4 (C-CAN high) | HECU connector | 5 (C-CAN low) | Approx. 60Ω |
| ICU (component side) | 20 (C-CAN high) | ICU (component side) | 19 (C-CAN low) | Approx. 120Ω | |
| SRSCM (component inside) | 27 (C-CAN high) | SRSCM (component inside) | 26 (C-CAN low) | Approx. 120Ω | |
| CAN communication circuit Inspection (With EPB) | |||||
|---|---|---|---|---|---|
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
| Connector | Terminal | Connector | Terminal | ||
|
HECU connector | 19 (C-CAN high) | Chassis ground | - | Fig.1 |
| HECU connector | 20 (C-CAN low) | Chassis ground | - | ||
|
HECU connector | 19 (C-CAN high) | MDPS connector | 7 (C-CAN high) | Approx. below 1Ω |
| HECU connector | 20 (C-CAN low) | MDPS connector | 8 (C-CAN low) | Approx. below 1Ω | |
|
HECU connector | 19 (C-CAN high) | HECU connector | 20 (C-CAN low) | Approx. 60Ω |
| ICU (component side) | 20 (C-CAN high) | ICU (component side) | 19 (C-CAN low) | Approx. 120Ω | |
| SRSCM (component inside) | 27 (C-CAN high) | SRSCM (component inside) | 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 MDPS 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.