THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): U0140,U0142,U0155,U0230,U0293,U1117; Lost Communication with Body Control Module; 2019 - 2024 MY RAV4 HV [11/2018

DESCRIPTION

These DTCs are stored when there is a CAN communication malfunction between the certification ECU (smart key ECU assembly), hybrid vehicle control ECU assembly, main body ECU (multiplex network body ECU), combination meter assembly or multiplex network door ECU*.

Data from the option connector (bus buffer ECU) cannot be received.

*: w/ Power Back Door System

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Note

U0140

Lost Communication with Body Control Module

CAN communication malfunction between certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU) (1-trip detection logic*)

Main body ECU (multiplex network body ECU)

DTC Output Confirmation Operation:

Any time

U0142

Lost Communication with Main Body ECU

CAN communication malfunction between certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU) (1-trip detection logic*)

Main body ECU (multiplex network body ECU)

DTC Output Confirmation Operation:

Any time

U0155

Lost Communication with Combination Meter

CAN communication malfunction between certification ECU (smart key ECU assembly) and combination meter assembly (1-trip detection logic*)

Combination meter assembly

DTC Output Confirmation Operation:

Turn the power switch on (IG) and wait at least 10 seconds.

U0230

Lost Communication with Rear Gate Module

CAN communication malfunction between certification ECU (smart key ECU assembly) and multiplex network door ECU (1 trip detection logic*)

Multiplex network door ECU

DTC Output Confirmation Operation:

Turn the power switch on (IG) and wait at least 3 seconds.

U0293

Lost Communication With Hybrid Vehicle Control System

CAN communication error between certification ECU (smart key ECU assembly) and hybrid vehicle control ECU assembly (1-trip detection logic*)

Hybrid vehicle control ECU assembly

DTC Output Confirmation Operation:

Turn the power switch on (IG) and wait at least 10 seconds.

U1117

Lost Communication with Accessory Gateway

Data from the option connector (bus buffer ECU) cannot be received

Connector and branch wire of sub bus 2 of option connector (bus buffer ECU)
Internal malfunction of option connector (bus buffer ECU)

DTC Output Confirmation Operation:

Turn the power switch on (IG) and wait at least 10 seconds.

*: Only detected while a malfunction is present.

Vehicle Condition and Fail-safe Function when Malfunction Detected

DTC Code

Vehicle Condition when Malfunction Detected

Fail-safe Function when Malfunction Detected

U0140

The warning (meter buzzer) does not sound and no warning messages displayed on the multi-information display.

U0142

Doors cannot be locked or unlocked.
The warning (wireless buzzer) does not sound.

U0155

The warning (meter buzzer) does not sound and the meter does not indicate a warning.
There is no effect on vehicle behavior.

U0230

Power back door does not operate.

U0293

The warning (meter buzzer) does not sound and no warning messages displayed on the multi-information display.

U1117

The hybrid control system cannot be started using the wireless remote control function.

Related Data List and Active Test Items

DTC No.

Data List and Active Test

U0140

U0142

U0155

U0230

U0293

U1117

CAUTION / NOTICE / HINT

NOTICE:

When using the Techstream with the power switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

When the cable is disconnected and reconnected to the negative (-) auxiliary battery terminal, the power source mode returns to the state it was in before the cable was disconnected.

PROCEDURE

GO TO CAN COMMUNICATION SYSTEM

(a) Refer to the CAN Communication System.

Click here

2019 MY RAV4 HV [11/2018 - 02/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

2019 - 2024 MY RAV4 HV [02/2019 - ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

END