• Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
• Review Strategy Based Diagnosis for an overview of the diagnostic approach.
• Diagnostic Procedure Instructions provides an overview of each diagnostic category.

The electronic brake control module monitors the vehicle longitudinal acceleration, comparing the detected acceleration to the requested acceleration.

Ignition ON.

The electronic brake control module detects an unplausible high or low acceleration value, which differs from what is requested.

• The electronic brake control module disables the Adaptive Cruise Control.

• The condition for setting the DTC is no longer present.
• The history DTC will clear after 40 consecutive fault-free ignition cycles have occurred.

DTC C026E indicates there was an abrupt stop of the vehicle due to a collision with an object, an extreme driving situation, other external influence, or component defect.

Antilock Brake System Schematics

Master Electrical Component List

ABS Description and Operation

• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs

Control Module References for scan tool information

1. Verify that no other DTCs are set.
• If any other DTCs are set

  Refer to Diagnostic Trouble Code (DTC) List - Vehicle.

• If no other DTCs are set
2. Verify DTC C026E does not set while driving the vehicle under normal braking conditions.
• If the DTC sets

  Replace the K17 Electronic Brake Control Module.

• If the DTC does not set
3. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for Electronic Brake Control Module replacement, programming, and setup