ECM Connector Identification

On Discovery Series II, ECM is located on the right side "A" post behind the front passenger kick panel. On Range Rover, the ECM is mounted in a plastic E-box located on the left side of engine compartment firewall. ECM is cooled by a dedicated fan, which provides cabin air to the plastic E-box maintaining a suitable environment for ECM operation. The operating temperature of the ECM is monitored by an internal temperature sensor. On all models, the ECM has 5 independent connectors totalling 134 pins. See Fig 1 and Fig 2 . See ECM CONNECTOR IDENTIFICATION  table.

Fig 1: Identifying ECM Harness Connector Terminals (Bosch Motronic M5.2.1)

Courtesy of LAND ROVER NORTH AMERICA, INC.

Fig 2: Identifying ECM Connector Terminals (Bosch Motronic M5.2.1)

Courtesy of LAND ROVER NORTH AMERICA, INC.