Engine Control Module: Locations

Control modules in front part of vehicle

Engine Control Module (ECM) -J623-




Component Location:







Below plenum chamber cover -Arrow-


121-pin, Pin Arrangements:







A - Engine Control Module (ECM) -J623-
Connector:

B - 81-pin connector -T81- on the wiring harness

C - 40-pin connector -T40- on the wiring harness

Note:
• -T121- consists of items B and C




154-pin, Pin Arrangements:







A - Engine Control Module (ECM) -J623-
Connector:

B - 94-pin connector -T94- on the wiring harness

C - 60-pin connector -T60- on the wiring harness

Note:
• -T154- consists of items B and C