CAN BUS DIAGNOSTICS TABLE <WITH SMARTPHONE LINK DISPLAY AUDIO (FOR MEXICO)>


caution During diagnosis, a diagnosis code associated with another system may be set when the ignition switch is turned to the "ON" position with connector(s) disconnected. After completing the repair, confirm all systems for diagnosis code(s). If diagnosis code(s) are set, erase them all.
This diagnosis applies only to the CAN bus lines. If a different system is defective, proceed to the applicable diagnosis section for each system. Observe the diagnosis procedure below only when the CAN bus line is defective.
M.U.T.-III screen
Diagnosis detail
 Reference page
(The ECUs that are not adopted are not displayed.)
 Comment


Failure in red displayed area is estimated.
 Diagnosis Item 1
Communication with no ECUs is possible (MAIN).
 *1
-
 -
 Diagnosis Item 2*2
Diagnose shorts in the power supply to CAN bus line (MAIN).
 *1
-
 -
 Diagnosis Item 3*2
Diagnose shorts in the earth to CAN bus line (MAIN).
 *1
-
 -
 Diagnosis Item 4*2
Diagnose shorts between CAN_H and L lines (MAIN).
 *1


Failure in red displayed area is estimated.
 Diagnosis Item 5
Communication with no ECUs is possible (SUB).
 *1
-
 -
 Diagnosis Item 6*3
Diagnose shorts in the power supply to CAN bus line (SUB).
-
 -
 Diagnosis Item 7*3
Diagnose shorts in the earth to CAN bus line (SUB).
-
 -
 Diagnosis Item 8*3
Diagnose shorts between CAN_H and L lines (SUB).


Disconnection in red displayed area is estimated.
 Diagnosis Item 9
Diagnose when the M.U.T.-III cannot receive the data sent by ETACS-ECU.
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 10
Diagnose when the M.U.T.-III cannot receive the data sent by gateway-ECU.
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 11
Diagnose when the M.U.T.-III cannot receive the data sent by steering wheel sensor. <Vehicles with ASTC>
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 12
Diagnose when the M.U.T.-III cannot receive the data sent by transfer-ECU. <4WD>
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 13
Diagnose when the M.U.T.-III cannot receive the data sent by combination meter.
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 14
Diagnose when the M.U.T.-III cannot receive the data sent by KOS&OSS-ECU.
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 15
Diagnose when the M.U.T.-III cannot receive the data sent by SRS-ECU.
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 16
Diagnose when the M.U.T.-III cannot receive the data sent by clearance warning control unit. <Vehicles with ultrasonic misacceleration mitigation, blind spot warning or corner sensor system>
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 17
Diagnose when the M.U.T.-III cannot receive the data sent by A/T-ECU.
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 18
Diagnose when the M.U.T.-III cannot receive the data sent by electric parking brake ECU.
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 19
Diagnose when the M.U.T.-III cannot receive the data sent by ABS-ECU <Vehicles without ASTC> or ASTC-ECU. <Vehicles with ASTC>
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 20
Diagnose when the M.U.T.-III cannot receive the data sent by ACC/FCM-ECU. <Vehicles with forward collision mitigation system>
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 21
Diagnose when the M.U.T.-III cannot receive the data sent by engine-ECU.
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 22
Diagnose when the M.U.T.-III cannot receive the data sent by headlamp automatic levelling-ECU. <Vehicles with headlamp automatic levelling system>
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 23
Diagnose when the M.U.T.-III cannot receive the data sent by camera-ECU. <Vehicles with multi around monitor system>
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 24
Diagnose when the M.U.T.-III cannot receive the data sent by A/C-ECU.
 *1


Disconnection in red displayed area is estimated.
 Diagnosis Item 26
Diagnose when the M.U.T.-III cannot receive the data sent by smartphone link display audio.


Disconnection in red displayed area is estimated.
 Diagnosis Item 27
Diagnose when the M.U.T.-III cannot receive the data sent by gateway-ECU (for smartphone link display audio).
note
  • *1: shows that the symptom procedure is the same as before.
  • *2: diagnosis items 2, 3 and 4 should be checked AFTER the cause of the fault is determined in diagnosis item 1 "Communication with no ECUs is possible".
  • *3: diagnosis items 6, 7 and 8 should be checked AFTER the cause of the fault is determined in diagnosis item 5 "Communication with no ECUs is possible".