Circuit Inspection
| Module Circuit Inspection | |||||
|---|---|---|---|---|---|
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
| Connector | Terminal | Connector | Terminal | ||
|
ECM connector | 3, 26, 60 (power) | Chassis ground | - | B+ |
|
ECM connector | 1, 2, 4 (ground) | Chassis ground | - | Approx. below 1Ω |
Good
- Go to "CAN Communication circuit Inspection" procedure.
No Good
- Repair as necessary and then Go to "Verification Of Repair " procedure.
| CAN communication circuit Inspection | |||||
|---|---|---|---|---|---|
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
| Connector | Terminal | Connector | Terminal | ||
|
IEB module connector | 8 (H-CAN high) | Chassis ground | - | Fig.1 |
| IEB module connector | 9 (H-CAN low) | Chassis ground | - | ||
|
IEB module connector | 8 (H-CAN high) | ECM connector | 80 (H-CAN high) | Approx. below 1Ω |
| IEB module connector | 9 (H-CAN low) | ECM connector | 81 (H-CAN low) | Approx. below 1Ω | |
| ECM connector | 80 (H-CAN high) | Chassis ground | - | Approx. below 1Ω | |
| ECM connector | 81 (H-CAN low) | Chassis ground | - | Approx. below 1Ω | |
|
IEB module connector | 8 (H-CAN high) | IEB module connector | 9 (H-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 ECM and Go to "Verification Of Repair " procedure.