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C0290 EBCM Failed to Receive Serial Data from PCM

OBD2 Code: C0290

Description: EBCM (Electronic Brake Control Module) failed to receive serial data from the PCM (Powertrain Control Module).

Definition: This code indicates a communication issue between the Electronic Brake Control Module and the Powertrain Control Module. The EBCM is not receiving necessary data from the PCM, which can affect vehicle braking performance and other related systems.

c0290

EBCM failed to receive serial data from PCM

Typical Severity: Critical

Common Causes

c0290 – EBCM Failed to Receive Serial Data from PCM

Common causes:

• Faulty wiring or connections between the EBCM and PCM
• Defective EBCM or PCM module
• Software issues in either the EBCM or PCM
• Low battery voltage affecting communication between modules

 

Common Misdiagnosis

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OBD2 Code: C0290

Description: EBCM Failed to Receive Serial Data from PCM

Common Misdiagnosis: Replacing the Electronic Brake Control Module (EBCM) or Powertrain Control Module (PCM) without checking for wiring issues or communication faults.

 

Common Diagnostic Steps

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OBD2 Code: C0290

Description: EBCM Failed to Receive Serial Data from PCM

• Check for any other stored codes that may indicate a communication issue.
• Inspect the wiring and connectors between the Electronic Brake Control Module (EBCM) and Powertrain Control Module (PCM) for damage or corrosion.
• Verify that the PCM is functioning correctly and has power and ground connections.
• Test the serial data circuit for continuity and proper voltage levels.
• Use a scan tool to check for communication with both the EBCM and PCM.
• If equipped, update or reprogram the PCM software as needed.
• If no faults are found, consider replacing the EBCM or PCM after confirming diagnosis with manufacturer guidelines.