DTC B1504: Lost Communication with Steering SW: Description

The combination meter assembly communicates with the multi-information switch (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, power switch on (IG) and the following condition is detected: Multi-information switch (steering pad switch assembly) communication error has been detected more than 3 seconds.	Harness or connector Spiral cable Multi-information switch (Steering pad switch assembly) Combination meter assembly