DTC P0615-62: Starter Relay Signal Compare Failure [11/2021 - 03/2023]: Description

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2025 Lexus NX 350, 2025 Lexus NX 250, 2024 Lexus NX 350, 2024 Lexus NX 250, and 2023 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.

When the STA signal detected by the ECM and by the engine stop and start ECU do not match, the engine stop and start ECU stores DTC P0615-62 and blinks the stop and start cancel indicator.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Warning Indicate	Note
P0615-62	Starter Relay Signal Compare Failure	Both of the following conditions are met for 2 seconds or more (1 trip detection logic): Normal communication with the ECM. The STA signal detected by the ECM and STA signal detected by the engine stop and start ECU do not match.	Wire harness or connector ST NO. 1 relay Engine stop and start ECU ECM	Blinks	SAE Code: P0615