DTC B2220-49: Back Door Motor Internal Electronic Failure [08/2021 - ]: Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

CLEAR DTC

Clear the DTCs.

Body Electrical > Back Door > Clear DTCs

Result

Proceed to
NEXT

Result:

See step 2

DTC REPRODUCTION TEST

Wait for approximately 10 seconds.

Result

Proceed to
NEXT

Result:

See step 3

CHECK FOR DTC

Check for DTCs.

Body Electrical > Back Door > Trouble Codes

Result

Result	Proceed to
B2220-49 is not output	A
B2220-49 is output	B

Result:

USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]

Result:

See step 4

INSPECT LUGGAGE DOOR CLOSER ASSEMBLY

Remove the luggage door closer assembly.
Refer to REMOVAL [06/2018 - ]

Inspect the luggage door closer assembly.

Refer to INSPECTION [06/2018 - ]

Result

Proceed to
OK
NG

Result:

REPLACE LUGGAGE DOOR CLOSER ASSEMBLY. Refer to REMOVAL [06/2018 - ]

Result:

See step 5

CHECK HARNESS AND CONNECTOR (LUGGAGE CLOSER MOTOR ASSEMBLY - LUGGAGE DOOR CLOSER ASSEMBLY)

Disconnect the R24 luggage closer motor assembly connector.
Disconnect the R18 luggage door closer assembly connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
R24-2 (LCM+) - R18-8 (M+)	Always	Below 1 Ω
R24-1 (LCM-) - R18-1 (M-)	Always	Below 1 Ω
R24-2 (LCM+) or R18-8 (M+) - Body ground	Always	10 kΩ or higher
R24-1 (LCM-) or R18-1 (M-) - Body ground	Always	10 kΩ or higher

Result

Proceed to
OK
NG

Result:

REPLACE LUGGAGE CLOSER MOTOR ASSEMBLY. Refer to REMOVAL [08/2021 - ]

Result:

REPAIR OR REPLACE HARNESS OR CONNECTOR