DTC B15C0: Short in GPS Antenna; DTC B15C1: Open in GPS Antenna [06/2018 - 10/2019]: Description

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2024 Lexus ES 350, 2024 Lexus ES 250, 2023 Lexus ES 350, 2023 Lexus ES 250, and 2022 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.

These DTCs are stored when the DCM (Telematics Transceiver) detects an open or a short in the telephone and GPS antenna assembly (for Roof Side) circuit. The DCM (Telematics Transceiver) receives 1574.42 - 1576.42 MHz radio frequency signals from satellites through the telephone and GPS antenna assembly (for Roof Side). The cable is a 50 Ω coaxial cable.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B15C0	Short in GPS Antenna	Current for telephone and GPS antenna assembly (for Roof Side) is higher than the malfunction criterion for 10 seconds or more when engine switch is on (IG). (Short circuit)	DCM (Telematics Transceiver) Telephone and GPS antenna assembly (for Roof Side) Telephone and GPS antenna cord (Antenna cord sub-assembly) Telephone and GPS antenna cord (No. 2 antenna cord sub-assembly) Telephone and GPS antenna cord (No. 3 antenna cord sub-assembly)
B15C1	Open in GPS Antenna	Current for telephone and GPS antenna assembly (for Roof Side) is lower than the malfunction criterion for 10 seconds or more when engine switch is on (IG). (Open circuit)	DCM (Telematics Transceiver) Telephone and GPS antenna assembly (for Roof Side) Telephone and GPS antenna cord (Antenna cord sub-assembly) Telephone and GPS antenna cord (No. 2 antenna cord sub-assembly) Telephone and GPS antenna cord (No. 3 antenna cord sub-assembly)