DTC U0293 Cadillac

HECU Fault

HECU Fault

Description

Enable Conditions: Case 1: The test actuates all valves in series to detect shorts or shunts between the valve lines. Faults are detected if there is an error during the test. Case 2: The drift test is executed only once during an ignition Cycle. If it detects partly shorted valve coils, almost inoperative coils or malfunction of the valve driver, a failure is recognized.

Cause and Solution

Faulty HECU

Video Guide

Duration: PT4M5S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: U0293
  • Brand: Cadillac
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