Check Chevy EBCM for Water Intrusion

Owners of 2015-2016 Chevy Colorado or GMC Canyon vehicles may state that the ABS/ESC MIL is on. The low brake fluid lamp may be on (even though the master cylinder fluid level is full) or a service trailer brake message is displayed.

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July 19, 2023

Remove the tape from the conduit leading to G400 between the main harness and the ground lug and inspect for water intrusion.

DTCs C0035, C0040, C0045, C0050, C0055, C0267, U0121, U0415 or U0420 may be stored. Inspect the EBCM connector for water intrusion or terminal corrosion. If either is found, replace the EBCM and replace the affected terminals. Remove the tape from the conduit leading to G400 between the main harness and the ground lug. If no water intrusion is found in the connector, remove the tape from the G400 conduit and continue with diagnostics.

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Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.