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Home >> GMC >> 1999 >> Forward Control 7.4 B >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Tests W/Codes - DTC P1537-U1193 >> DTC P1628 >> DTC P1628: ECT Pull-Up Resistor (1.9L SATURN) >> Diagnostic Procedures

Diagnostic Procedures

Record and diagnose all DTC(s). Clear DTC(s). If DTC P1628 resets, replace PCM. Program replacement PCM using required equipment.

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