Wiper Relay: Testing and Inspection

INSPECTION
The intermittent relay operating time is controlled by variable resistance.
If the problem has been traced to the intermittent relay, replace it with a new one.




Check for proper operation. It the system operates properly, the original intermittent relay was faulty.

1. Wiper




1. Operating characteristic
2. T1 : 0.5 secs or below
T2 : Time required for the wiper to rotate 1 cycle.
T3 : 1.5 ± 10.7 (VR = 0 K Ohms) - 10K.5 ± 3 secs (VR=50 K Ohms)
3. Variable resistor (VR) : 50 ± 10 K Ohms
4. Relay operation noise: Below 50 dB/20 cm

2. Washer




1. Operating characteristic
2. T1 : 0.4 - 1.2 sec
T2 : 2.0 - 4.7 sec
3. This function has then priority to the intermittent wiper operation.