DTC B1DA4-29: Incorrect Front Roof Position [Retractable Hardtop Control Module]: Notes

WARNING: This page is about a different car, the 2020 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

DTC B1DA4:29 (RETRACTABLE HARDTOP CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

Description	Incorrect front roof position
Detection condition	The retractable hardtop control module detects an incorrect front roof position.
Fail-safe	Stops retractable hardtop operation
Possible cause	Short to ground in wiring harness between the following terminals: Retractable hardtop control module terminal 4B and front roof link limit switch (RH) terminal A Retractable hardtop control module terminal 4C and front roof link limit switch (RH) terminal B Front roof link limit switch (RH) malfunction Retractable hardtop control module malfunction
Courtesy of MAZDA MOTORS CORP.