1A - «+» - electric current for the end position of the wiper; 1B - mass; 2A - high speed wiper; 3A - low windshield wiper speed; 3B - wiper end position.
After removing the fairing grille, you can get to the bolts for fastening all the rods and the wiper drive levers with the engine in the holder. The motor is fixed with three screws «2» and more hidden «3». Before doing this, remove both axles of the wiper arm (1). Before removing the engine drive crank, you should mark its original position. In the initial position, the crank is located at an angle of 90°relative to the edge of the holder.
The wire terminals in the wiper motor have the following meaning:
- Terminal 1 (white wire) supplies voltage to the second wiper speed.
- Terminal 2 (black wire) associated with mass.
- Terminal 3 (red wire) stops the wiper motor after switching off during return movement in the end position, the motor receives voltage via the sliding contact of terminal 3 (positive electric current), until the wipers are in their final position.
- Terminal 4 (white cable) supplies voltage for the first wiper speed.
- Terminal 5 (orange-green cable) supplies a positive electric current for the final shutdown of the wiper.
Note. Recommendation: When the ignition is switched on, the wiper blades must not be blocked in an intermediate position, for example by snow or because they are frozen. In this case, terminal 3 will continuously supply voltage. Since the wiper motor cannot rotate with jammed brushes, it will burn out after a while. In this case, release the wiper blades so that they can move into their final position.
Removal of the engine and system of drafts of a screen wiper
1. Set the wipers to their final position.
2. Remove both wiper arms.
3. Remove the front wall seal in the engine compartment.
4. Unscrew the connecting bolt (SW 7) both halves of the cowling.
5. Lift the fairing cover at the front and remove it.
6. Disconnect the battery.
7. Release the wiper arm pins (SW 22).
8. Remove 3 mounting bolts (SW 10) the entire wiper mechanism.
9. Disconnect a socket and remove the mechanism of a screen wiper together with the engine.
Removal of system of drafts and levers of a screen wiper
1. Remove the water drain cover from the body.
2. Remove the wiper rods and levers from the engine crank and wiper arm cranks. To do this, turn the lock cover a little and use a screwdriver, or even better with a suitable key, to move it off the spherical head.
3. Check ball heads for wear before installation.
4. Lubricate the pivots and press with a suitable wrench head onto the ball head of the appropriate cranks.
Removing the wiper motor
1. Remove the wiper mechanism together with the engine, as already described.
2. Dismantle drafts and levers of a screen wiper drive.
3. Remove the nut from the wiper motor drive shaft and remove the drive crank from the shaft cone. Mark the position of the crank in advance.
4. Unscrew the wiper motor from the mounting (3 bolts).
5. When installing, pay attention to the correct position of the motor crank relative to the motor shaft.
6. Turn on the ignition and check the position of the wiper blades at the final shutdown. The wiper motor crank should be almost horizontal to the left (in the direction of travel).
7. If necessary, remove the crank from the engine and, having installed it as necessary, tighten it again.
Wiper operation at intervals
The Renault 19 is equipped with an intermittent wiper device that interrupts the wiper movement for approximately 5 seconds.
The intermittent switching works as follows: the three-stage lever switch has an additional terminal A6 which gives an electric current to the corresponding terminal of the intermittent switching relay in the fuse box (beige wire). At the signal «interval» The wiper motor receives a current pulse from the intermittent relay via terminal 4 and drives it from the corresponding terminal of the wiper current switch.
Trouble-shooting
Malfunction | Cause | Debugg |
| A. The windshield wiper does not work. | 1. Fuse defective. 2. Faulty interval relay. 3. Weak wiper drive crank. 4. Faulty wiring to wiper switch. 5. Faulty wiring to wiper motor. 6. Blown wiper motor. | Replace. Replace relay to test. Tighten. Check wiring. Check wiring. Replace. |
| B. The windshield wiper does not work at the first speed. | 1. Faulty terminal 4 of the wiper motor. 2. Faulty terminals A3 / A5 in the switch. | Replace engine. |
| C. The windshield wiper does not work on the second speed. | 1. Faulty terminal wire A2 from the wiper to the motor. 2. Faulty terminals A2 / A5 in the wiper switch. 3. Faulty terminal 1 of the wiper motor. | Check wire. |
| D. Windshield wipers only work at second speed. | Broken wire terminals A3 from the wiper switch to the wiper motor. | Check wire. |
| E. The wiper does not return to its original position. | 1. Broken wire terminals A5 between the wiper and the wiper motor. 2. Faulty wiper motor. | Check wire. Check with a test lamp: between terminal A1 and ground, the lamp must be constantly on. Between terminal A5 and ground, the lamp should go out shortly before reaching the end position of the wiper. When checking between terminal 5 (wiper motor) And «a plus» battery, the lamp should light up shortly before reaching the wiper end position. If not, replace the wiper motor. |
| F. The windshield wiper does not operate intermittently. | 1. Faulty interval relay. 2. Broken wire terminal A6 between the wiper switch and the wiper motor. 3. Faulty contact A6 in the wiper switch. | Replace. |
| G. It is not possible to turn off the wiper operation at intervals. | 1. See E 1. 2. See F 1. 3. Contact A5 or A6 in the wiper switch does not break. 4. Defective relay. | Replace switch. |
| N. The wiper does not remain in its end position after switching off or remains for a short time. | Not enough good contact in the sliding contact in the wiper motor. | Unscrew the wiper motor housing, clean the contacts. Replace wiper motor if necessary. |