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Home >> Pontiac >> 1988 >> LeMans SE, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> 1.6L TBI System >> Operation >> Electronic Control Module (ECM)

Electronic Control Module (ECM)

The ECM is located behind right kick panel. The ECM has self-diagnosis capability that allows for trouble shooting the system through a "SERVICE ENGINE SOON" (SES) light. The SES light on the dash will illuminate to inform driver of a system malfunction. The ECM stores malfunctions, and will display problem(s) via a 2-digit code displayed by the SES light.