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Home >> Buick >> 1986 >> Riviera Base >> Repair and Diagnosis >> Engine Performance >> System >> BCM System, Part I >> Self-Diagnostic System >> Entering "Service Mode" >> Toronado Models
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Toronado Models

To enter the service mode, turn the ignition switch to the "ON" position. Touch the "OFF" and "WARM" buttons on the ECC control panel simultaneously, and hold until a segment check is displayed on the instrument panel and ECC control panel. See Fig 1 .

Fig 1: Toronado Electronic Climate Control (ECC) Panel This panel is used on Toronado models only.
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