Circuit Inspection
| CAN Communication Line Inspection | |||||
|---|---|---|---|---|---|
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
| Connector | Terminal | Connector | Terminal | ||
|
CLU connector | 32 (E-CAN high) | Chassis ground | - | Fig. 1 |
| CLU connector | 33 (E-CAN low) | Chassis ground | - | ||
|
ECM (component side) | 56 (P-CAN high) | ECM (component side) | 57 (P-CAN low) | Approx. 120Ω |
| ICU (component side) | 17 (P-CAN high) | ICU (component side) | 18 (P-CAN low) | Approx. 120Ω | |
|
CLU connector | 32 (E-CAN high) | ECM connector | - | ∞ (infinity)Ω |
| CLU connector | 33 (E-CAN low) | Chassis ground | - | ∞ (infinity)Ω | |
| CLU connector | 32 (E-CAN high) | ICU connector | 31 (E-CAN high) | Approx. below 1Ω | |
| CLU connector | 33 (E-CAN low) | ICU connector | 32 (E-CAN low) | Approx. below 1Ω | |
| ICU connector | 17 (P-CAN high) | ECM connector | 56 (P-CAN high) | Approx. below 1Ω | |
| ICU connector | 18 (P-CAN low) | ECM connector | 57 (P-CAN low) | Approx. below 1Ω | |
|
ECM connector | 56 (P-CAN high) | Chassis ground | - | Fig. 2 |
| ECM connector | 57 (P-CAN low) | Chassis ground | - | ||
Good
- Go to "Module Circuit Inspection" procedure.
No Good
- Repair open or short in circuit and then Go to "VERIFICATION OF REPAIR " procedure.
| Module Circuit Inspection | |||||
|---|---|---|---|---|---|
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
| Connector | Terminal | Connector | Terminal | ||
|
Front radar | 1 (ground) | Chassis ground | - | Approx. below 1Ω |
|
Front radar | 6 (ON/START Input) | Chassis ground | - | B+ |
Good
- Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and Go to "VERIFICATION OF REPAIR " procedure.
- No Good
- Repair as necessary and Go to "VERIFICATION OF REPAIR " procedure.
- If no problems were found with the circuits or connectors, replace the front radar and Go to "VERIFICATION OF REPAIR " procedure.