Test Description

NOTE: The Cruise Switch must be ON to perform this test. Switch Test EI82 should be performed before this test to ensure power to the SET/COAST switch.

This test detects the close of the Set-Coast switch in the turn signal lever at terminal D3 of the ECM.

NOTE: For diagnostic chart, see Fig 1 . For circuit identification, see Figure .

LO indicate the Set/Coast switch is open. HI indicates that the switch is closed.

Fig 1: Identifying ECM Input EI83: Cruise Control Set/Coast Switch Flow Chart

Courtesy of GENERAL MOTORS CORP.