Circuit Inspection
| CAN communication Line Inspection | |||||
|---|---|---|---|---|---|
| Inspection Condition | (+) Probe | (-) Probe | Reference | ||
| Connector | Terminal | Connector | Terminal | ||
|
ECM connector | 85 (P-CAN high) | Chassis ground | - | Fig.1 |
| ECM connector | 63 (P-CAN low) | Chassis ground | - | ||
|
ECM connector | 85 (P-CAN high) | ECM connector | 63 (P-CAN low) | Approx. 60Ω |
| ECM (component side) | 85 (P-CAN high) | ECM (component side) | 63 (P-CAN low) | Approx. 120Ω | |
| ICU (component side) | 12 (P-CAN high) | ICU (component side) | 11 (P-CAN low) | Approx. 120Ω | |
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
- If no problems were found with the circuits or connectors, replace the ICU or ECM and go to "Verification of Repair " procedure.