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Home >> Lexus >> 2021 >> LS 500 Base, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Safety Connect System - Diagnostic Codes & Symptom Tests >> Safety Connect System >> DTC B15CB-11: Telephone Main Antenna Circuit Short to Ground; DTC B15CB-13: Telephone Main Antenna Circuit Open [10/2020 - 10/2022] >> Description

DTC B15CB-11: Telephone Main Antenna Circuit Short to Ground; DTC B15CB-13: Telephone Main Antenna Circuit Open [10/2020 - 10/2022]: Description

This DTC is stored when the DCM (telematics transceiver) detects an open or a short in the telephone antenna (main) circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15CB-11 Telephone Main Antenna Circuit Short to Ground Telephone antenna (main) impedance (Ω) is lower than malfunction criterion for 10 seconds when engine switch is on (IG).
(Short circuit)
  • DCM (telematics transceiver)
  • Telephone and GPS antenna (for Roof Side)
  • Telephone and GPS antenna cord (antenna cord sub-assembly [Floor])
  • Harness or connector
B15CB-13 Telephone Main Antenna Circuit Open Telephone antenna (main) impedance (Ω) is higher than malfunction criterion for 10 seconds when engine switch is on (IG).
(Open circuit)
  • DCM (telematics transceiver)
  • Telephone and GPS antenna (for Roof Side)
  • Telephone and GPS antenna cord (antenna cord sub-assembly [Floor])
  • Harness or connector