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Home >> Saturn >> 1996 >> SC2 Automatic, MP6 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Trouble Codes >> DTC P1628 - ECT Pull-Up Resistor >> Circuit Description
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Circuit Description

This DTC indicates a fault with the PCM pull-up resistor used to revise ECT resolution throughout the entire engine operation condition. This DTC requires a cold start (IAT=ECT) to be able to detect a fault.