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Home >> Land Rover >> 2000 >> Range Rover SE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Motors, Relays & Solenoids >> Main Relay Circuit >> Range Rover

Range Rover

  1. Main relay may also be called the engine main control relay. Main relay is in the engine compartment fuse/relay box which is located at the right side of the engine compartment. Battery voltage is supplied directly to engine compartment fuse/relay box through Red wire from battery.
  2. Turn ignition off. Remove main relay from engine compartment fuse/relay box. Measure voltage between ground and main relay connector terminals No. 1 and 3. See WIRING DIAGRAMS . If battery voltage is present at both terminals, go to next step. If battery voltage is not present, check for an open in Red wire between battery and engine compartment fuse/relay box. Repair as necessary. If Red wire is okay, repair or replace engine compartment fuse/relay box.
  3. Check for continuity between main relay terminals No. 1 and 2. If continuity exists, go to next step. If continuity does not exist, replace main relay.
  4. Check for continuity between main relay terminals No. 3 and 5. If continuity does not exist, go to next step. If continuity exists, replace main relay.
  5. Using a fused jumper wire, connect battery voltage to main relay terminal No. 1. Using another jumper wire, connect main relay terminal No. 2 to ground. When main relay is energized, check for continuity between main relay terminals No. 3 and 5. If continuity does not exist, replace main relay.
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