Dtc B1499/99 Multiplex Communication Circuit

Vehicle Interior. Yaris. Ncp93, 131
Heating Air Conditioning. Yaris. Ncp93, 131

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK DTC OUTPUT (DTC B1499/99)

DTC B1499/99 Multiplex Communication Circuit


DESCRIPTION

The air conditioning amplifier communicates data with the ECM and combination meter assembly through the CAN communication system.

DTC No.
DTC Detection Condition
Trouble Area
B1499/99
Open in CAN communication line
  1. Air conditioning amplifier power source circuit
  2. Air conditioning amplifier
  3. ECM
  4. Combination meter assembly
  5. CAN communication line

WIRING DIAGRAM


Yaris. Ncp93, 131.Heating Air Conditioning.Air Conditioning System (For Sedan). Dtc B1499/99 Multiplex Communication Circuit


INSPECTION PROCEDURE

1.CHECK DTC OUTPUT (DTC B1499/99)

  1. Clear the DTC (YARIS_NCP93 RM000001CY5007X.html).

  1. Check the DTC (YARIS_NCP93 RM000001CY5007X.html).

    Result:
    Result
    		Proceed to
    DTC (B1499/99) is output
    		A
    DTC (B1499/99) is not output
    		B


B
USE SIMULATION METHOD TO CHECK (YARIS_NCP93 RM00000135202EX.html)
A

GO TO CAN COMMUNICATION SYSTEM (YARIS_NCP93 RM000001D3500JX.html)