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ECM Connector Identification

On Defender 90 and Discovery, ECM is located in the right rear corner of the engine compartment. Each vehicle has 3 ECM connectors. A Black 36-pin connector, a Red 36-pin connector and a Black 18-pin connector. See Fig 1 and Fig 2 . See ECM CONNECTOR IDENTIFICATION  table.

ECM CONNECTOR IDENTIFICATION

Connector Description (1) Identification Number
Defender
Black 36-Pin C634
Black 18-Pin C635
Red 36-Pin C636
Discovery
Black 36-Pin C1032
Black 18-Pin C1033
Red 36-Pin C1017
(1) See WIRING DIAGRAMS  .
Fig 1: ECM Black Or Red 36-Pin Harness Connector Terminals
G98I11591Courtesy of LAND ROVER NORTH AMERICA, INC.
Fig 2: ECM Black 18-Pin Harness Connector Terminals
G98J11592Courtesy of LAND ROVER NORTH AMERICA, INC.