Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM1000000018IX6
Model Year Start: 2018 Model: Sienna Prod Date Range: [11/2017 -           ]
Title: CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: PROBLEM SYMPTOMS TABLE; 2018 - 2020 MY Sienna [11/2017 -        ]

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.

Voice Guidance

Symptom

Suspected Area

See page

"Safety Connect failure detected, please contact your dealer" message is played.

Refer to HEALTH CHECK.

2018 - 2020 MY Sienna [11/2017 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: HEALTH CHECK

Refer to Diagnostic Trouble Code Chart.

2018 MY Sienna [11/2017 - 08/2018]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2019 - 2020 MY Sienna [08/2018 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: DIAGNOSTIC TROUBLE CODE CHART

"Safety Connect Activation Failed" message is played.

Wait for some time, then move to different location and retry (try to find location with better signal reception).

-

Refer to HEALTH CHECK.

2018 - 2020 MY Sienna [11/2017 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: HEALTH CHECK

Refer to Diagnostic Trouble Code Chart.

2018 MY Sienna [11/2017 - 08/2018]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2019 - 2020 MY Sienna [08/2018 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: DIAGNOSTIC TROUBLE CODE CHART

Contact Telematics Service Provider to verify any network problems.

-

"Unable to Connect the Emergency Call Center" or "Unable to Connect to the Call Center" message is played.

Wait for some time, then move to different location and retry (try to find location with better signal reception).

-

Perform Vehicle Inquiry on the Techstream and verify subscription status.

-

Refer to UNABLE TO CONNECT TO CALL CENTER.

2018 - 2020 MY Sienna [11/2017 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: UNABLE TO CONNECT TO CALL CENTER

"Safety Connect is not active" message is played.

Perform Vehicle Inquiry on the Techstream and verify subscription status.

-

Explain to the customer that the system is in deactive mode, and confirm whether or not they would like to change to active mode.

-

Indicator Condition

Symptom

Suspected Area

See page

Green indicator abnormal (Remains OFF)

Refer to DCM POWER SOURCE CIRCUIT

2018 - 2020 MY Sienna [11/2017 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: DCM POWER SOURCE CIRCUIT

Refer to GREEN INDICATOR REMAINS OFF

2016 - 2020 MY Sienna [12/2015 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: GREEN INDICATOR REMAINS OFF

Red indicator abnormal (Remains ON)

Refer to RED INDICATOR REMAINS ON

2016 - 2020 MY Sienna [12/2015 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: RED INDICATOR REMAINS ON

Green and red indicators abnormal (Remains OFF)

Refer to GREEN AND RED INDICATORS DO NOT COME ON WHEN IG-ON

2016 - 2020 MY Sienna [12/2015 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: GREEN AND RED INDICATORS DO NOT COME ON WHEN IG-ON

Refer to DCM POWER SOURCE CIRCUIT

2018 - 2020 MY Sienna [11/2017 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: DCM POWER SOURCE CIRCUIT

DCM (Telematics Transceiver)

2018 - 2020 MY Sienna [11/2017 -        ]; CELLULAR COMMUNICATION: MAYDAY ECU: REMOVAL

Green and red indicators blink simultaneously

Refer to GREEN AND RED INDICATORS BLINK SIMULTANEOUSLY

2016 - 2020 MY Sienna [12/2015 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: GREEN AND RED INDICATORS BLINK SIMULTANEOUSLY