GM Service Manual Online
For 1990-2009 cars only

Scan Tool Output Control

Additional Menu Selections

Description

Refer to the scan tool manual for complete scan tool operating instructions.

PROM ID

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This function is used to identify the hardware and software revisions to the EBCM.

History Data

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This function displays the last two digits and a description of any previously stored DTCs that have not been cleared.

Tire Size Calibration

    • Read Tire Calibration
    • New Tire Size

This function is used in order to view the existing tire calibration or to program tire size information into the EBCM memory. This function must be performed when a replacement EBCM is installed in the vehicle or when different size tires are installed on the vehicle.

Trim Level Calibration

    • Read Trim Calibration
    • New Trim Level

This function is used in order to view the existing trim calibration or program the EBCM memory with information specific to the vehicle in which the EBCM is installed. This function must be performed when a replacement EBCM is installed in the vehicle.

Function Test

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The Function test commands the system relay, valve solenoids, and the pump motor ON and OFF. The EBCM sets a DTC if a malfunction is detected.