Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Problem Symptoms Table

"Communication Module failure detected, please contact your dealer" message is played

Refer to HEALTH CHECK

Diagnostic Trouble Code Chart

(Red Indicator has failed and cannot indicate a failure)

"Communication Module Activation Failed" message is played

Contact Telematics Service Provider to verify any network problems

-

Wait for a while, then move to different location and retry (try to find location with better signal reception)

-

Refer to HEALTH CHECK

Diagnostic Trouble Code Chart

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

Wait for a while, then move to different location and retry (try to find location with better signal reception)

-

Perform Vehicle Inquiry on Techstream and verify subscription status

-

Refer to UNABLE TO CONNECT TO CALL CENTER

"Safety Connect is not active" message is played

Perform Vehicle Inquiry on 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

-

Green indicator abnormal (Remains OFF)

Refer to DCM POWER SOURCE CIRCUIT

Refer to GREEN INDICATOR REMAINS OFF

Red indicator abnormal (Remains ON)

Refer to RED INDICATOR REMAINS ON

Green and red indicators abnormal (Remains OFF)

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

Refer to DCM POWER SOURCE CIRCUIT

DCM (Telematics Transceiver)

Green and red indicators blink simultaneously

Refer to GREEN AND RED INDICATORS BLINK SIMULTANEOUSLY