Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM1000000010Z58
Model Year Start: 2017 Model: Sienna Prod Date Range: [08/2016 -           ]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: PROBLEM SYMPTOMS TABLE; 2017 - 2020 MY Sienna [08/2016 -        ]

PROBLEM SYMPTOMS TABLE

HINT:

  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Symptom

Suspected Area

See page

The SRS warning light goes off after the primary check, but comes on again.

SRS Warning Light Remains ON

2016 - 2020 MY Sienna [12/2015 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: SRS Warning Light Remains ON

With the ignition switch to ON, the SRS warning light sometimes comes on after approximately 6 seconds.

SRS Warning Light Remains ON

2016 - 2020 MY Sienna [12/2015 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: SRS Warning Light Remains ON

The SRS warning light always comes on even when no DTCs are output.

SRS Warning Light Remains ON

2016 - 2020 MY Sienna [12/2015 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: SRS Warning Light Remains ON

With the ignition switch to ON the SRS warning light does not come on.

SRS Warning Light does not Come ON

2016 - 2020 MY Sienna [12/2015 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: SRS Warning Light does not Come ON

Although an SRS warning light operates normally, DTC or a normal system code is not displayed.

TC and CG Terminal Circuit

2017 - 2020 MY Sienna [08/2016 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: TC and CG Terminal Circuit

Although terminals TC and CG of the DLC3 are not connected, DTC or a normal system code is displayed.

TC and CG Terminal Circuit

2017 - 2020 MY Sienna [08/2016 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: TC and CG Terminal Circuit