Toyota CH-R Service Manual: Software Incompatibility with Body Control Module "B" (U1331)

Toyota CH-R Service Manual / Park Assist / Monitoring / Blind Spot Monitor System / Software Incompatibility with Body Control Module "B" (U1331)

DESCRIPTION

This DTC is stored when the destination information of the main body ECU (multiplex network body ECU) does not match that of the blind spot monitor sensors.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

U1331

Software Incompatibility with Body Control Module "B"

Destination information of the main body ECU and blind spot monitor sensor do not match
  • Main body ECU (multiplex network body ECU)
  • Blind spot monitor sensor LH (Slave)
  • Blind spot monitor sensor RH (Slave)

CAUTION / NOTICE / HINT

NOTICE:

  • When checking for DTCs, make sure that the blind spot monitor system is turned on.
  • Before replacing the main body ECU (multiplex network body ECU), refer to Registration*1.

    Click here

    *1: w/ Smart Key System

PROCEDURE

1.

CONFIRM PART NUMBER (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

(a) Check the main body ECU (multiplex network body ECU) part number.

(1) Check if the part number of the main body ECU (multiplex network body ECU) installed to the vehicle is correct.

OK:

The part number is correct.

NG

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

OK

2.

CHECK DTC

(a) Turn the ignition switch off.

(b) Turn the ignition switch to ON.

(c) Recheck for DTCs and check if the same DTC is output again.

Body Electrical > Blind Spot Monitor Master > Trouble Codes Body Electrical > Blind Spot Monitor Slave > Trouble Codes

Result

Proceed to

No DTCs are output.

A

DTC U1331 is output ("Blind Spot Monitor Master").

B

DTC U1331 is output ("Blind Spot Monitor Slave").

C
A

USE SIMULATION METHOD TO CHECK

B

REPLACE BLIND SPOT MONITOR SENSOR LH (MASTER)

C

REPLACE BLIND SPOT MONITOR SENSOR RH (SLAVE)

    Lost Communication with Blind Spot Monitor Slave Module (U0232)
    DESCRIPTION This DTC is stored when the blind spot monitor sensor LH (Master) judges that there is a communication problem with the blind spot monitor sensor RH (Slave). DTC No. ...

    Short to GND or Open in Buzzer (C1ABE)
    DESCRIPTION DTC C1ABE is stored when the blind spot monitor sensor RH (Slave) detects a short to ground or open in the RCTA buzzer (blind spot monitor buzzer) circuit. ...

    Other materials:

    KIA Niro EV / Hybrid (SG2) - (2021-2023) - Owner's manual > Air bag - supplemental restraint system: Passenger's front air bag ON/OFF settings (Kia NIRO Hybrid)
    You can deactivate the passenger's front air bag from the User Settings Mode on the LCD display if a child restraint is installed on the front passenger's seat or if the front passenger's seat is unoccupied by a person. If your vehicle is equipped with infotainment system, please ...

    KIA Niro EV / Hybrid (SG2) - (2021-2023) - Owner's manual > Brake system: In the event of brake failure (Kia NIRO Hybrid)
    Operation Make an emergency stop with the parking brake. Operating condition(s) The brake has failed WARNING Avoid applying the parking brake to stop the vehicle while it is moving except in an emergency situation. Applying the parking brake while the vehicle is moving at normal ...

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    KIA Niro EV / Hybrid (SG2) - (2021-2023) - Owner's manual

    © 2017-2023 Copyright www.tochr.net
    0.0147