Electronic Control Module (ECM): Mem-Cal: Installation
- Carefully align MEM-CAL pins with ECM pin holes. DO NOT press in middle of MEM-CAL. Push downward evenly on ends of MEM-CAL until retaining clips on ends of MEM-CAL snap into place.
- Install ECM. Reconnect negative battery terminal. Turn ignition on and ground ALDL terminal "B". Code 12 should be flashed at least 4 times. If Code 12 is not flashed at least 4 times, other codes are present. If Code(s) 42, 43, 51 or 52 are present, or if CHECK ENGINE light stays on constantly with code(s) present, MEM-CAL is not fully seated, or is defective.