Circuit Inspection
| Module Circuit Inspection | |||||
|---|---|---|---|---|---|
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
| Connector | Terminal | Connector | Terminal | ||
|
FR_RDR connector | 1 (ground) | Chassis ground | - | Approx. below 1Ω |
|
FR_RDR connector | 6 (power) | Chassis ground | - | B+ |
Good
- Go to "CAN communication circuit Inspection (E-CAN)" 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 | ||
|
FR_RDR connector | 4 (E-CAN high) | Chassis ground | - | Fig.1 |
| FR_RDR connector | 5 (E-CAN low) | Chassis ground | - | ||
|
FR_RDR connector | 4 (E-CAN high) | Chassis ground | - | ∞ (infinity)Ω |
| FR_RDR connector | 5 (E-CAN low) | Chassis ground | - | ∞ (infinity)Ω | |
| FR_RDR connector | 4 (E-CAN high) | ICU connector | 31 (E-CAN high) | Approx. below 1Ω | |
| FR_RDR connector | 5 (E-CAN low) | ICU connector | 32 (E-CAN low) | Approx. below 1Ω | |
|
FR_RDR connector | 4 (E-CAN high) | FR_RDR connector | 5 (E-CAN low) | Approx. 60Ω |
Good
- Go to "CAN Communication circuit Inspection (C-CAN)" 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 | ||
|
ICU connector | 20 (C-CAN high) | Chassis ground | - | ∞ (infinity)Ω |
| ICU connector | 19 (C-CAN low) | Chassis ground | - | ∞ (infinity)Ω | |
| ICU connector | 20 (C-CAN high) | IEB module connector | 4 (C-CAN high) | Approx. below 1Ω | |
| ICU connector | 19 (C-CAN low) | IEB module connector | 5 (C-CAN low) | Approx. below 1Ω | |
|
IEB module connector | 4 (C-CAN high) | Chassis ground | - | Fig.2 |
| IEB module connector | 5 (C-CAN low) | Chassis ground | - | ||
|
IEB module connector | 4 (C-CAN high) | IEB module connector | 5 (C-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 Go to "Verification Of Repair " procedure.
No Good
- Repair open or short in circuit and then Go to "Verification Of Repair " procedure.
- If no problems were found with the circuits or connectors, replace the FR_RDR and Go to "Verification Of Repair " procedure.