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Home >> Toyota >> 2020 >> Avalon Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 98 (Safety Connect System - Diagnostic Codes & Symptom Tests (Hybrid)) >> SAFETY CONNECT SYSTEM (for HV Model) >> DTC B1570: Manual (SOS) Switch Red Indicator Malfunction [04/2018 - 08/2020] >> Description

DTC B1570: Manual (SOS) Switch Red Indicator Malfunction [04/2018 - 08/2020]: Description

WARNING: This page is about a different variant/trim than selected.

This DTC is stored when the DCM (Telematics Transceiver) detects an open or short in the manual (SOS) switch red indicator circuit of the manual (SOS) switch.

The manual (SOS) switch red indicator illuminates for 2 seconds and goes off when the power switch is turned on (IG). If a malfunction in the safety connect system is detected, the manual (SOS) switch red indicator will illuminate.

However, the manual (SOS) switch red indicator may not illuminate when this DTC is set.

DTC No. Detection Item DTC Detection Condition Trouble Area
B1570 Manual (SOS) Switch Red Indicator Malfunction Current for manual (SOS) switch red indicator reaches malfunction criteria for 10 seconds when power switch is on (IG).
  • Roof console box sub-assembly
  • Wire harness or connector
  • DCM (Telematics Transceiver)