KIA Niro: Rain Sensor Repair procedures

Inspection

Check point for rain sensor:

1. To properly adjust sensitivity if auto wiping operates sensitively or insensitively.

2. To check if a connector of sensor is normally connected

3. To check if sensor and bracket are normally connected.
4. To check if sensor are contaminated by foreign substances (In case that silicone gel pad of rain sensor is polluted by foreign substances, rain sensor can be reusable after they are removed by sticker roller.)

5. To check if silicone gel pad on sensor is damaged.

• If the damaged area of silicone gel pad is more than 1.5mm (0.0591in.), then the perfect appearance and the function are not guaranteed anymore. Therefore, silicone gel pads need to be replaced.

  (Refer to Rain Sensor - "Replacement")

Failure case

1. Damage of silicone gel pad for rain sensor

Status

• Auto wiper does not operate intermittently

Remark

Auto wiper does not activate according to damaged silicone gel pad range

2. Detached silicone gel pad from rain sensor

Status

• Auto wiper does not operate intermittently

Remark

Auto wiper does not activate according to detached silicone gel pad range

3. Completely plugged-out rain sensor from wiring connector

Status

• Auto wiper does not activate
• DTC code can be checked through diagnostic device

Remark

DTC related with LIN communication error occurs

4. Incompletely plugged-out rain sensor from wiring connector

Status

• Auto wiper does not operate intermittently
• DTC code can be checked through diagnostic device

Remark

DTC related with LIN communication error could occur if auto wiper does not activate

5. Clamp of rain sensor incompletely assembled with bracket

Status

• Auto wiper does not activate

Remark

Auto wiper does not operate intermittently according to detached range from windshield

6. LIN communication error

Rain sensor fault Communication fault

Status

• Auto wiper does not activate
• DTC code can be checked through diagnostic device

Remark

DTC related with LIN communication error occurs or caused by case 3 or case 4

Warning

Caution for handling

• Carefully separate the rain sensor from the windshield as it may be damaged if separated by force.
• Do not touch sensing area of silicone.
• Be careful for contamination of foreign substances on silicone gel pad.
• After removing the rain sensor, protect the sensor surface with protection cover until installing the rain sensor to bracket for accurate function.

1. Remove the mirror wiring cover (A).

2. Disconnect the rain sensor connector (A).
3. Be careful not to damage the cover latch by applying excessive force. To remove the latch, pull aside the latch using the cover hole with a small flat-blade screwdriver (A).

4. Rain sensor module is attached to the front windshield by glue. To replace the front windshield, remove the rain sensor module from the existing front windshield and install on the new front windshield.

Installation

1. Install in the reverse order of removal.

Warning

When reuse the rain sensor, check the silicone gel pad for damages, soiling and air bubbles.

• If the damaged area of silicone gel pad is more than 1.5mm (0.0591in.), then the perfect appearance and the function are not guaranteed anymore. Therefore, silicone gel pads need to be replaced.

  (Refer to Rain Sensor - "Replacement")

• The silicone gel pad has to be free of dirt. In case that silicone gel pad of rain sensor is polluted by foreign substances, rain sensor can be reusable after they are removed by sticker roller.

Matters that require attention when installing the rain sensor.

• Be careful when detaching protection cover from rain sensor because silicone gel pad could be damaged.
• Do not touch the silicone gel pad.
• Be careful not to damage the silicone gel pad during assembly.
• The windshield glass has to be clean and free of contamination or foreign substances.
• Do not snap both spring arms at the same time. (Important : two times click sound)
• Check the snap fit condition between spring and bracket after installing.
• After installing the rain sensor, check the silicone gel pad for air bubbles. (Press the rain sensor several times, if air bubbles occurred.)

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