Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM1000000021J2G
Model Year Start: 2022 Model: RAV4 HV Prod Date Range: [12/2021 -           ]
Title: CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM (for HV Model): U012587,U012687,U012987,U015587,U029387,U110687; Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; 2022 - 2024 MY RAV4 HV [12/2021 -        ]

DTC

U012587

Lost Communication with Multi-axis Acceleration Sensor Module Missing Message

DTC

U012687

Lost Communication with Steering Angle Sensor Module Missing Message

DTC

U012987

Lost Communication With Brake System Control Module Missing Message

DTC

U015587

Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message

DTC

U029387

Lost Communication With Hybrid Powertrain Control Module Missing Message

DTC

U110687

Lost Communication with Electric Parking Brake Module Missing Message

DESCRIPTION

The millimeter wave radar sensor assembly communicates with each sensor and ECU via CAN communication.

If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

DTC Output from

U012587

Lost Communication with Multi-axis Acceleration Sensor Module Missing Message

When the vehicle speed is 1 km/h (1 mph) or more, a communication error between the millimeter wave radar sensor assembly and yaw rate sensor (airbag ECU assembly) continues for 5 seconds or more.

CAN communication system

Does not come on

Radar Cruise2

U012687

Lost Communication with Steering Angle Sensor Module Missing Message

When the dynamic radar cruise control system is operating, a communication error between the millimeter wave radar sensor assembly and steering sensor continues for 5 seconds or more.

CAN communication system

Does not come on

Radar Cruise2

U012987

Lost Communication With Brake System Control Module Missing Message

When the dynamic radar cruise control system is operating, a communication error between the millimeter wave radar sensor assembly and No. 2 skid control ECU (brake actuator assembly) continues for 5 seconds or more.

CAN communication system

Does not come on

Radar Cruise2

U015587

Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message

When the dynamic radar cruise control system is operating, a communication error between the millimeter wave radar sensor assembly and combination meter assembly continues for 12 seconds or more.

CAN communication system

Does not come on

Radar Cruise2

U029387

Lost Communication With Hybrid Powertrain Control Module Missing Message

When the dynamic radar cruise control system is operating, a communication malfunction between the hybrid vehicle control ECU assembly and forward recognition camera is detected for 5 seconds or more.

CAN communication system

Does not come on

Radar Cruise2

U110687

Lost Communication with Electric Parking Brake Module Missing Message

When the ignition switch is ON for 2 seconds or more, a communication error between the millimeter wave radar sensor assembly and No. 2 skid control ECU (brake actuator assembly) continues for 5 seconds or more.

CAN communication system

Does not come on

Radar Cruise2

PROCEDURE

1.

CLEAR DTC

(a) Clear the DTCs.

Powertrain > Radar Cruise2 > Clear DTCs

NEXT

2.

CHECK FOR DTCs

(a) Make sure that the DTC detection conditions are met.

HINT:

If the detection conditions are not met, the system cannot detect the malfunction.

(b) Check for DTCs.

Powertrain > Radar Cruise2 > Trouble Codes

Result

Proceed to

DTC U012587, U012687, U012987, U015587, U029387 and U110687 are not output

A

DTC U012587, U012687, U012987, U015587, U029387 or U110687 is output

B

A

USE SIMULATION METHOD TO CHECK

B

GO TO CAN COMMUNICATION SYSTEM