Electrical Load Idle-Up Diode

Idle-up diode is located behind left side of instrument panel near instrument cluster, taped to instrument panel harness. See Fig 1 . To test electrical idle-up diode, see CHART C-1A  under DIAGNOSTIC CHARTS.

Fig 1: Locating Electrical Load Diode (Prizm 1.6L VIN 6)

Courtesy of GENERAL MOTORS CORP.