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Body Control Module Diagnosis - Hev: Overview Kia Optima III

Communication Devices 5 illustrations ~1023 words

General Description

RPAS is a Rear Parking Assistant System. It has a supersonic sensor which radiates supersonic to rear side of the vehicle to detect supersonic reflected from an obstacle. It consist of 4 sensor and calculates distances between vehicle and obstacle if it detects reflected supersonic. BCM receive the signal of calculated distances by LIN communication. It warns being obstacle to drivers through buzzer or displaying on cluster according to distance from obstacle. Warning level is divided into 3 step. (warning level rises progressively according to distance from obstacle)

DTC Description

This code reports an error in LIN line. The purpose is to verify the status of RPAS UNIT, Sensor and Wire when error is detected at RPAS of left side sensor.

RPAS is a Rear Parking Assistant System. It has a supersonic sensor which radiates supersonic to rear side of the vehicle to detect supersonic reflected from an obstacle. It consist of 4 sensor and calculates distances between vehicle and obstacle if it detects reflected supersonic. BCM receive the signal of calculated distances by LIN communication. It warns being obstacle to drivers through buzzer or displaying on cluster according to distance from obstacle. Warning level is divided into 3 step (warning level rises progressively according to distance from obstacle)

This code reports an error in LIN line. The purpose is to verify the status of RPAS UNIT, Sensor and Wire when error is detected at RPAS of Rear Center Left Sensor.

RPAS is a Rear Parking Assistant System. It has a supersonic sensor which radiates supersonic to rear side of the vehicle to detect supersonic reflected from an obstacle. It consist of 4 sensor and calculates distances between vehicle and obstacle if it detects reflected supersonic. BCM receive the signal of calculated distances by LIN communication. It warns being obstacle to drivers through buzzer or displaying on cluster according to distance from obstacle. Warning level is divided into 3 step (warning level rises progressively according to distance from obstacle).

This code reports an error in LIN line. The purpose is to verify the status of RPAS UNIT, Sensor and Wire when error is detected at RPAS of Rear Center Right Sensor.

RPAS is a Rear Parking Assistant System. It has a supersonic sensor which radiates supersonic to rear side of the vehicle to detect supersonic reflected from an obstacle. It consist of 4 sensor and calculates distances between vehicle and obstacle if it detects reflected supersonic. BCM receive the signal of calculated distances by LIN communication. It warns being obstacle to drivers through buzzer or displaying on cluster according to distance from obstacle. Warning level is divided into 3 step (warning level rises progressively according to distance from obstacle).

This code reports an error in LIN line. The purpose is to verify the status of RPAS UNIT, Sensor and Wire when error is detected at RPAS of Right side sensor.

This DTC sets when a communication error between SJB and other control units occur.

Body CAN communication Control Units: BCM(Body Control Module), CLU(Cluster), SMK(Smart Key), SJB(Smart Junction Box), PSM(Power Seat Module).

CAN (Controller Area Network): CAN is a serial bus type communication which links control units.

LIN (Local Interconnect Network): LIN is serial communication type which is used in electrical control system. (This is less expensive)

Scheme 134

Scheme 134: General Description
PatternStatusRemark
1CANH Circuit OpenB1602 is presented when IC detects one of errors among 7 types under normal communication condition. According to operation condition, some of module which are connected to CAN line may not detect B1602. Also, B1603 can be detected together.
2CANL Circuit Open
3CANH Circuit Short to Power
4CANL Circuit Short to Power
5CANH Circuit Short to Ground
6CANL Circuit Short to Ground
7CANH and CANL Short to each other

DTC DESCRIPTION

This DTC sets when a communication error between SJB and other control units occur.

Body CAN communication Control Units: BCM(Body Control Module), CLU(Cluster), SMK(Smart Key), SJB(Smart Junction Box), PSM(Power Seat Module).

CAN (Controller Area Network): CAN is a serial bus type communication which links control units.

LIN (Local Interconnect Network): LIN is serial communication type which is used in electrical control system. (This is less expensive)

Scheme 135

Scheme 135: General Description

This DTC sets when a communication error between SJB and other control units occur.

(* Control Units: BCM(Body Control Module), CLU(Cluster), SMK(Smart Key), SJB(Smart Junction Box), PSM(Power Seat Module)

Case1: After short between CAN Low Line and High Line, short to ground together.

Case2: After short between CAN Low Line and High Line, short to power together.

This code sets when the module is unable to transmit data on the CAN Line. It may be possible to receive data on the CAN Line.

This code reports "BUS OFF" status when a data transmit error count is over 255. The purpose is to verify the status of CAN controller and CAN communication line when error is detected.

Depending on operation condition, some modules which are connected to the CAN line may not detect B1603. Also, B1602 coincides with B1603 at all times.

CAUTIONDifference between CAN ERROR and CAN BUS ERROR CAN Error: MIL On, CAN Bus Error: No MIL

This DTC sets when a communication error between SJB and other control units occur.

Body CAN communication Control Units: BCM(Body Control Module), CLU(Cluster), SMK(Smart Key), SJB(Smart Junction Box), PSM(Power Seat Module).

CAN (Controller Area Network): CAN is a serial bus type communication which links control units.

LIN (Local Interconnect Network): LIN is serial communication type which is used in electrical control system. (This is less expensive)

Scheme 136

Scheme 136: General Description

This code is outputted when BCM can't receive data from PSM by CAN Line for 10 sec.

This DTC sets when a communication error between SJB and other control units occur.

Body CAN communication Control Units: BCM(Body Control Module), CLU(Cluster), SMK(Smart Key), SJB(Smart Junction Box), PSM(Power Seat Module).

CAN (Controller Area Network): CAN is a serial bus type communication which links control units.

LIN (Local Interconnect Network): LIN is serial communication type which is used in electrical control system. (This is less expensive)

Scheme 137

Scheme 137: General Description

This code is outputted when IPM can't receive data from CLU by CAN Line for 10 sec.

This DTC sets when a communication error between SJB and other control units occur.

Body CAN communication Control Units: BCM(Body Control Module), CLU(Cluster), SMK(Smart Key), SJB(Smart Junction Box), PSM(Power Seat Module).

CAN (Controller Area Network): CAN is a serial bus type communication which links control units.

LIN (Local Interconnect Network): LIN is serial communication type which is used in electrical control system. (This is less expensive)

Scheme 138

Scheme 138: General Description

This code is outputted when BCM can't receive data from SJB by CAN Line for 6 sec.