Land Rover Range Rover Electronic Arir Suspension Rover Manual
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Page 21
EAS - System Information Document © Rover Group 1998Page 21 of 32 NOTE: Range Rover Classic connectors shown are for 1995 MY vehicles. Most descriptions and colors are the same for 1993 MY and 1994 MY, but connector numbers may differ. Refer to the ETM for clarification if required. C311 Main Harness Connector PositionColorDescription 1. -- 2. White/YellowKey-on Power to Delay Relay 3. BlackGround E300 4. Orange/WhiteBattery Power Feed 5. White/SlateEngine Speed, Alternator Tap 6. Black/BlueHand...
Page 22
EAS - System Information Document © Rover Group 1998Page 22 of 32 NOTE: Range Rover Classic connectors shown are for 1995 MY vehicles. Most descriptions and colors are the same for 1993 MY and 1994 MY, but connector numbers may differ. Refer to the ETM for clarification if required. C332Valve Block Connector PositionColorDescription 1. Green/WhiteRear left Valve, 12V to Open Valve 2. Green/YellowRear right Valve, 12V to Open Valve 3. Green/BrownFront left Valve, 12V to Open Valve 4. Green/PinkFront...
Page 23
EAS - System Information Document © Rover Group 1998Page 23 of 32 NOTE: Range Rover Classic connectors shown are for 1995 MY vehicles. Most descriptions and colors are the same for 1993 MY and 1994 MY, but connector numbers may differ. Refer to the ETM for clarification if required. C333 Compressor Connector PositionColorDescription 1. -- 2. Black/OrangeThermal Switch Monitor, Open to EnterCooling Period 3. BlackGround E300 4. Brown/L GreenPower from Compressor Relay Typical Height Sensor: C359,...
Page 24
EAS - System Information Document © Rover Group 1998Page 24 of 32 RANGE ROVER CLASSIC See note on previous page. C331 ECU Connector PositionColorDescription 1. Slate/RedPower from Delay relay 2. Orange/BlueRear Left Height Sensor Source 5V 3. Orange/BlackFront Left Height Sensor Source 5V 4. Red/BlueRear Left Height Sensor Input Voltage 5. Red/BlackFront Left Height Sensor Input Voltage 6. Black/YellowWarning Lamp Relay Control, Ground to Turn Lamp OFF 7. Yellow/WhiteDown Lamp, Ground to Illuminate 8....
Page 25
EAS - System Information Document © Rover Group 1998Page 25 of 32 NEW RANGE ROVER CONNECTOR DETAILS C117 ECU Connector PositionColorDescription 1. Slate/GreenPower from Delay relay 2. Orange/SlateRear Left Height Sensor Source 5V 3. Orange/BlueFront Left Height Sensor Source 5V 4. Orange/PinkRear Left Height Sensor Input Voltage 5. Orange/GreenFront Left Height Sensor Input Voltage 6. -- 7. Blue/PinkLamp Control and Message to BeCM 8. GreenCompressor Relay Driver 9. Green/SlateExhaust Valve, 12V to Open...
Page 26
EAS - System Information Document © Rover Group 1998Page 26 of 32 NEW RANGE ROVER C118Delay Relay Connector PositionColorDescription 1 -- 2 Purple/RedBattery Power from 10A F44 3 Slate/RedRelay Interrupt from C231, Pull Low to Open Relay 4 WhiteKey ON Signal from 5A F24 5 Purple/OrangeDoor Input to Wake Up if Key is Off 6 BlackGround, E148 7 -- 8 Slate/GreenPower to ECU, Valve Block, and Pressure Switch 9 -- C139Valve Block to Valve Driver Connector PositionColorDescription 14 WhiteRear Left Valve Hit...
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EAS - System Information Document © Rover Group 1998Page 27 of 32 NEW RANGE ROVER C152Valve Block Connector from ECU PositionColorDescription 1. Green/WhiteRear Left Valve, 12V to Open Valve 2. Green/YellowRear Right Valve, 12V to Open Valve 3. Green/BlackFront Left Valve, 12V to Open Valve 4. Green/PinkFront Right Valve, 12V to Open Valve 5. Green/OrangeInlet Valve, 12V to Open Valve 6. Green/SlateExhaust Valve, 12V to Open Valve 7. Slate/GreenDelay Relay to Pressure Switch 12V Power 8. Purple/Lt...
Page 28
EAS - System Information Document © Rover Group 1998Page 28 of 32 PNEUMATIC DIAGRAMS The following diagrams apply to New Range Rover. As stated before, the Classic system is essentially the same with the exception of extension pipes for the exhaust silencer and inlet filter. Additionally, later Classics had the pressure switch located on the valve block. Range Rover Classic Valve Block Quick Reference Table Port NumberDestinationColor Tag 1. Rear Left Air SpringRed 2. Rear Right Air SpringBlue 3. Front...
Page 29
EAS - System Information Document © Rover Group 1998Page 29 of 32 1. Air compressor runs and supplies pressure to system. 2. Diaphragm solenoid is ON. 3. The diaphragm valve is closed forcing air through the dryer and into valve block. 4. The inlet valve is closed forcing air through to the reservoir. 5. The pressure switch turns off the compressor when specified pressure is achieved.
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EAS - System Information Document © Rover Group 1998Page 30 of 32 1. The rear air spring valves are opened allowing air pressure to escape. 2. The inlet valve is closed and the exhaust valve is opened to allow pressure to escape. 3. The diaphragm solenoid is OFF allowing the diaphragm valve to lift off its seat and pass air to the exhaust silencer.