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                        | Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001AYYI |  
                        | Model Year Start: 2019 | Model: Avalon HV | Prod Date Range: [04/2018 - 08/2020] |  
                        | Title: CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM (for HV Model): B15A8; Telematics Transceiver Malfunction; 2019 - 2020 MY Avalon HV [04/2018 - 08/2020] |  
                     
                        
                           | DTC | B15A8 | Telematics Transceiver Malfunction |  DESCRIPTIONThis DTC is set when an error in the EEPROM or PLL IC is detected on the DCM (Telematics Transceiver) self-check. The EEPROM (Electrically Erasable Programmable Read-Only Memory) stores the various data to operate the safety connect system. The PLL IC (Phase-Locked Loop Integrated Circuit) oscillates telephone radio frequency. 
                     
                        
                        
                        
                        
                     
                     
                        
                           | DTC No. | Detection Item | DTC Detection Condition | Trouble Area |  
                           | B15A8 | Telematics Transceiver Malfunction | Error in EEPROM or PLL IC is detected. | DCM (Telematics Transceiver) |  CAUTION / NOTICE / HINTNOTICE: Regardless of whether DTC B15A8 has been output as a present or history DTC, the DCM (Telematics Transceiver) should be replaced. PROCEDURE
                     
                        
                           | 1.  | REPLACE DCM (TELEMATICS TRANSCEIVER) |  (a) Replace the DCM (Telematics Transceiver). Click here
                        
                           
                              ![2019 - 2020 MY Avalon Avalon HV [04/2018 - 08/2020]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL](/t3Portal/stylegraphics/info.gif)  
                     NOTICE: 
                        
The power switch must be off.
Do not swap the DCM (Telematics Transceiver) with one from another vehicle.
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