Circuit Inspection
| Inspection Item | Inspection Condition | (+) Probe | (-) Probe | Specification | ||
|---|---|---|---|---|---|---|
| Connector | Terminal | Connector | Terminal | |||
| Power inspection (Rain sensor ↔ Chassis ground) |
|
Rain sensor connector | 1 (Memory power) | Chassis ground | - | B+ |
| Open in circuit inspection (Rain sensor ↔ BDC) |
|
Rain sensor connector | 3 (LIN) | BDC connector | 16 (Rain Sensor_LIN) | Approx. below 1Ω |
| Open in circuit inspection (Rain sensor ↔ Chassis ground) |
|
Rain sensor connector | 2 (ground) | Chassis ground | - | Approx. below 1Ω |
| Short in circuit inspection (Rain sensor ↔ Chassis ground) |
|
Rain sensor connector | 3 (LIN) | Chassis ground | - | ∞ (infinity)Ω |
| LIN oscilloscope (Rain sensor) |
|
Rain sensor connector | 3 (LIN) | Chassis ground | - | Fig. 1 |
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 12V battery, all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, or damage.
- Repair or replace as necessary and then Go to "VERIFICATION OF REPAIR " procedure.
No Good
- Repair as necessary, Go to "VERIFICATION OF REPAIR " procedure.