Connect scantool to Data Link Connector(DLC).
Ignition "ON" & engine "OFF" & wiper "AUTO".
Measure waveform between terminal "4" of rainsensor and chassis ground while sprinkling water on front window glass.
Specification : Duty cycle > 66.7% ± 3%
Mode | Duty Cycle |
OFF | 9.5% ± 3% |
Fault 1 Detected | 23.8% ± 3% |
Fault 2 Detected | 38.0% ± 3% |
Fault 3 Detected | 52.4% ± 3% |
Rain Detected | 66.7% ± 3% |
Low Speed Request | 81.0% ± 3% |
High Speed Request | 95.2% ± 3% |
FIG 2) Duty cycle of rainsensor as a function of sensor mode.
Is the measured waveform within specifications?
※ Duty cycle value will be fixed at 38.0%±3%, if fault 2 is detected.
YES
Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
NO
Substitute with a known-good rainsensor and check for proper operation.
If the problem is corrected, replace rainsensor and then go to "Verification of Vehicle Repair" procedure.
