Circuit/System Verification

NOTE:

Since most occurrences of this DTC are caused by excessive ABS or traction control usage, review with the customer the conditions under which the DTC set.

Ignition ON.
Verify that DTC C0186, C0187, C0196, C0287, or C0710 is not set.
- If any of the DTCs are set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step: If none of the DTCs are set
Ignition OFF, allow the hydraulic brake pressure modulator to cool down to ambient temperature.
Ignition ON.
Verify that DTC C0274 54 is not set while driving the vehicle within normal braking conditions.
- If any of the DTCs are set
  Replace the K17 Electronic Brake Control Module with Brake Pressure Modulator.
- Go to next step: If none of the DTCs are set
All OK.