Windshield Wiper and Washer System Failure Diagnostic Chart
| Signs | Reasons |
| Windscreen wipers and washer do not work | 1. Ignition relay No. 1 failure. 2. The windshield wiper fuse has blown. 3. Malfunction in the right combination switch. 4. The cable bus is damaged. |
| Windshield wipers do not operate in LO or HI position. | 1. Malfunction in the right combination switch. 2. Failure of the windshield wiper drive. 3. The cable bus is damaged. |
| Windscreen wipers do not work in INT position | 1. Malfunction in the right combination switch. 2. Failure of the windshield wiper drive. 3. The cable bus is damaged. |
| The electric washer does not work | 1. Malfunction in the right combination switch. 2. Failure of the windshield wiper drive. 3. The cable bus is damaged. |
| Windscreen wipers do not work in MIST position | 1. Malfunction in the right combination switch. 2. Failure of the windshield wiper drive. 3. The cable bus is damaged. |
| There is no splashing of liquid on the glass | 1. The washer tube is damaged. 2. The washer spray nozzle is damaged. |
| Windscreen wipers do not return to home position when right combination switch is turned to OFF position | 1. Malfunction in the right combination switch. 2. Failure of the windshield wiper drive. 3. The cable bus is damaged. |
| When the right combination switch is turned to the OFF position, the wiper lowers, then rises and stops completely | The angle lever of the electric windshield wiper drive is offset from the return position. |