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Home >> Land Rover >> 1995 >> Range Rover SE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing - 4.0L & 4.6L >> Computerized Engine Controls >> Engine Control Module (ECM) >> Power Circuits
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Power Circuits

  1. Turn ignition on. Using a backprobe set, measure voltage between ground and ECM Black 18-pin connector terminal No. 8 (White wire). See WIRING DIAGRAMS .
  2. If battery voltage does not exist, check fuse No. 26 (20-amp), located in engine compartment fuse box. If fuse is okay, check for an open in White wire between ECM and fuse box. If fuse is not okay, repair short in White wire between ECM and fuse box and replace fuse. See WIRING DIAGRAMS .
Fig 1: Identifying ECM Black 18-Pin Harness Connector Terminals
G98J11592Courtesy of LAND ROVER NORTH AMERICA, INC.