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U0129 Fault Code: Lost Communication with Brake System Control Module - Toyota Land Cruiser 200 (VDJ200L-GNTNZV)

Model: TOYOTA LANDCRUISER Fault Code: U0129 Posted: 2015-12-15 06:05

I own a Toyota Land Cruiser 200 (model VDJ200L-GNTNZV) and am currently experiencing the U0129 diagnostic trouble code, which indicates 'Lost Communication with Brake System Control Module'. I'm seeking expert insights and troubleshooting advice to resolve this issue effectively. The fault has appeared after a recent driving condition or system reset, and I'd like to understand the root cause and potential fixes based on real-world experiences.

Related fault codes
U0129
Comments (2)
Anonymous 2019-11-13 15:32

Have you identified any specific issues with your vehicle? Did you replace the brake control module? Please share details about what you've already tried or observed.

Anonymous 2019-11-13 17:20

Common causes for U0129 include: an open circuit in the CAN bus (positive side), an open circuit in the CAN bus (negative side), a short to power in either CAN bus wire, a short to ground in either CAN bus wire, or an open power/ground connection to the Brake System Control Module (BSCM) — this is typically the most frequent cause. Rarely, a faulty BSCM module itself may be responsible. For more detailed information, refer to official U0129 troubleshooting resources.