Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJGX
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 -           ]
Title: DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Smart Key System): DIAGNOSTIC TROUBLE CODE CHART; 2016 - 2020 MY Sienna [12/2015 -        ]

DIAGNOSTIC TROUBLE CODE CHART

HINT:

  • If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to "See page" in the DTC chart.
  • Inspect the fuses and relays before troubleshooting the areas shown in the table below.

Wireless Door Lock Control System

DTC Code

Detection Item

Trouble Area

See page

B1242

Wireless Door Lock Tuner Circuit Malfunction

- Wire harness or connector

- Door control receiver

- Certification ECU (Smart key ECU assembly)

2016 - 2020 MY Sienna [12/2015 -        ]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Smart Key System): B1242; Wireless Door Lock Tuner Circuit Malfunction