Dtc B1499/99 Multiplex Communication Circuit

Heater & Air Conditioning System. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Air Conditioning. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK DTC

DTC B1499/99 Multiplex Communication Circuit


DESCRIPTION

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

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

WIRING DIAGRAM


Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System). Dtc B1499/99 Multiplex Communication Circuit


INSPECTION PROCEDURE

1.CHECK DTC

  1. Clear the DTC (RAV4_ACA30 RM000001MY5013X.html).

  1. Read the DTC (RAV4_ACA30 RM000001MY5013X.html).

    Result:
    Result
    		Proceed to
    DTC (B1499/99) is output
    		A (RAV4_ACA30 RM000001RSN00RX.html)
    DTC (B1499/99) is not output
    		B


B
SYSTEM IS OK
A

GO TO CAN COMMUNICATION SYSTEM