DIAGNOSIS FUNCTION



HOW TO READ DIAGNOSIS CODE


Refer to GROUP 00 - Diagnosis function .

HOW TO ERASE DIAGNOSIS CODE


Refer to GROUP 00 - Diagnosis function .

CHECK OF FREEZE FRAME DATA


The freeze frame data can be checked by using the M.U.T.-III.

When detecting fault and storing the diagnosis code, the ECU connected to CAN bus line obtains the data before the determination of the diagnosis code and the data when the diagnosis code is determined, and then stores the ECU status of that time. By analysing each data from M.U.T.-III, the troubleshooting can be performed more efficiently. The displayed items are as the table below.

Display item list
Item No.
Item name
Data item
Unit
1
Odometer
Total driving distance after the diagnosis code is generated
km
2
Ignition cycle
Number of times the ignition switch is turned "OFF (LOCK or ACC)" after the past failure transition
Number of counts.
4
Accumulative minute
Accumulative time for current malfunction of diagnosis code
min

FAIL-SAFE FUNCTIONS


When the LDW-ECU detects a malfunction, the warning lamp will illuminate or the system will be disabled.
Diagnosis code No.
Warning contents
Ignition switch or system status
Factor
Warning lamp*
Fail-safe
-
Intermittent malfunction detection
Ignition switch: ON
The following signals, which are received via CAN communication, are unfeasible.

  • Engine-ECU: Vehicle speed signal
  • ABS-ECU <vehicles without ASC> or ASC-ECU <vehicles with ASC>: Yaw rate and longitudinal and lateral acceleration of a vehicle signal
  • Steering wheel sensor: steering angle of the steering wheel signal
  • ETACS-ECU: brake pedal signal
ON
Disabled
C1702
Trouble detection
Refer to the diagnosis code procedures. Refer to .
C1703
C1704
Abnormal temperature detection
Ignition switch: ON
The internal temperature in the LDW camera reaches 85 °C or more. (Refer to the diagnosis code procedures. Refer to .)
No indication
Disabled
Abnormal temperature detection

  • Ignition switch: ON
  • LDW operation status: ON

The internal temperature in the LDW camera reaches 85 °C or more.
ON
Disabled
C1705
Trouble detection
Ignition switch: ON
Refer to the diagnosis code procedures. Refer to .
ON
Disabled
C1706
C1707
B1950
No indication
B1951
B1952
B2507
ON
U0121
U0126
U0141
U1190
U1195
U15A2
note
  • *: For display screens, refer to the indicator lamp or warning lamp list. Refer to .