Kia Optima: Advanced Driver Assistance System (ADAS) / Parking Collision-Avoidance Assist (PCA)

Kia Optima DL3 2019-2023 Service and Repair Manual / Advanced Driver Assistance System (ADAS) / Parking Collision-Avoidance Assist (PCA)

Components and components location

Component Location

1. Cluster (USM)
2. Parking collision-avoidance assist (PCA) Unit

3. Rear view camera
4. Parking distance warning-reverse (PDW-R) sensor

Description and operation

Description

•	Parking Collision-Avoidance Assist-Reverse (PCA-R) : When the vehicle is in reverse, in order to prevent collosion and reduce possible damage, the system warns to the driver or controls the brake in case of danger of collision with pedestrians or objects.

PCA-R activation condition

(1)	PCA ON : Be able to turned on/off using the user setting menu (USM) on cluster

(2)	Vehicle status : Trunk closed, PDW switch ON

(3)	Shift lever position : R range

PCA-R Operation

(1)	Shift lever position : R range

(2)	Vehicle speed : less than 10 km/h (6 mph)

(3)	When detecting pedestrians or object in the rear, the system warns and control the brake in case of danger of collision. (maintain about 2 seconds)

(4)	If the system is braking once after inputting R range, no subsequent braking will occur. Re-operate when R range is entered after other range change(P,N,D).

3.	System components

4.	System block diagram

Schematic diagrams

Connector and Terminal function

Parking Collision-Avoidance Assist (PCA-R) Unit

Repair procedures

Inspection

In the body electrical system, failure can be quickly diagnosed by using Kia Diagnostic System (KDS).

The diagnostic system (KDS) provides the following information.

(1)	Self diagnosis : Checking failure and code number (DTC).

(2)	Current data : Checking the system input/output data state.

(3)	Actuation test : Checking the system operation condition.

(4)	Additional function : Controlling other features including system option setting and zero point adjustment.

Removal

Parking Collision-Avoidance Assist-Reverse (PCA-R) Unit

1.	Disconnect the negative (-) battery terminal.

2.	Remove the crash pad lower panel. (Refer to Body - "Crash Pad Lower Panel")

3.	Remove the knee airbag (KAB) module. (Refer to Body - "Knee Airbag (KAB) Module")

4.	Remove the driver side shower duct (A) after loosening the screw.

5.	Disconnect the PCA-R unit connectors (A).

6.	Remove the PCA-R unit (A) after loosening the mounting nuts.

Rear View Camera

1.	Remove the rear view camera. (Refer to Rear View Monitor (RVM) - "Repair procedures")

Parking Distance Warning-Reverse Sensor

1.	Remove the PDW-R sensor. (Refer to Parking Distance Warning (PDW) - "Parking Distance Warning (PDW) Sensor")

Installation

1.	Install in the reverse order of removal.

2.	When replacing PCA unit with a new one, perform the variant coding procedure by using the KDS.

Parking Distance Warning (PDW) ON/OFF Switch

Schematic diagrams Connector and Terminal Function Pin Function Pin Function 1 PAS mode switch ...

Maintenance

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