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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1506 (Antilock Brake System, Traction Control System & Stability Control System) >> Diagnostic Information and Procedures >> DTC C1284 or C1285 >> Conditions for Running the DTC >> C1284

Conditions for Running the DTC: C1284

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The EBCM performs 7 different tests to detect a DTC condition. The numbers below correspond to the numbers in Conditions for Setting the DTC.

  1. The lateral accelerometer sensor bias test runs with the ignition ON.
  2. The lateral accelerometer sensor self test runs with the following conditions:
    • The ignition is ON.
    • The vehicle is stopped.
  3. The lateral accelerometer sensor jerk test runs with the ignition ON.
  4. The centered lateral accelerometer sensor test runs with the following conditions:
    • The ignition is ON.
    • The vehicle is stopped.
  5. The lateral accelerometer sensor isolation test runs with the following conditions:
    • The ignition is ON.
    • DTC C1282 is not set.
    • The yaw rate is less than 8 degrees/second.
  6. The above lateral accelerometer sensor isolation test runs with the VSES active.
  7. The yaw rate sensor and lateral accelerometer sensor uncorrelated test with the following conditions:
    • The vehicle speed is greater than 10 km/h (6.2 mph) and less than 100 km/h (62 mph).
    • The centered yaw rate has a value that is positive and is greater than 10 degrees/second
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