DTC B1504: Lost Communication with Steering SW [11/2015 - 06/2017]: Description

The combination meter assembly communicates with the steering pad switch assembly via a direct line. If the combination meter assembly detects a communication malfunction, it stores this DTC.

DTC No.	DTC Detection Condition	Trouble Area
B1504	When the IG voltage is 9.5 V or more and ignition switch to ON (IG) and the following condition is detected: Steering pad switch assembly communication error has been detected more than 3 seconds.	Harness or connector Spiral cable Steering pad switch RH Steering pad switch LH Combination meter assembly