Workshop Manuals Factory service & repair Land Rover
01 Introduction02 Key information03 Sequential multiport fuel injection (SFI-V8)04 Diesel05 Starting and charging06 Cruise control07 Transfer gearbox08 Automatic gearbox09 Ignition and shift interlock10 Anti-lock brake system11 Data link connector12 Instruments13 Warnings and indicators14 Horns15 Radio16 Navigation system17 Wash/wipe18 Heated front screen19 Heated rear screen20 Electrochromatic rear view mirror21 Headlamps22 Side lamps23 Stop lamps24 Direction indicator lamps25 Reversing lamps26 Fog guard lamps27 Interior lamps28 Cigar lighter/clock/accessory socket29 Heating and ventilation (without A/C)30 Heating and ventilation (WITH A/C)31 Power windows32 Sunroof33 Power seats34 Power mirrors35 Memory seats36 Heated seats37 Memory mirrors38 Supplementary restraint system (SRS)39 Trailer auxiliary socket40 Air suspension41 Security/central locking42 Power distribution43 Fuse details44 Ground distribution45 Component location table46 Component location views47 Connector views48 Harness routing49 Ground50 Index
Land Rover Range Rover P38 Electrical Troubleshooting Manual (1999 on)06 · Cruise control
06 · Electrical

Cruise control – circuit operation

Make
Land Rover
Model
Range Rover P38 Electrical Troubleshooting Manual
Year
1999 on
Section
Circuit operation › Cruise control – circuit operation
Cruise controlCruise control – circuit operation

CRUISE CONTROL – CIRCUIT OPERATION

Road Test

CAUTION: DO NOT ENGAGE CRUISE CONTROL WHEN VEHICLE IS BEING USED IN LOW TRANSFER GEARS. WARNING: The use of cruise control is not recommended on winding, snow covered or slippery roads, or in heavy traffic conditions where constant speed cannot be maintained. 1. Start the engine and depress the Cruise Control Switch (X115) to activate the cruise control system. Accelerate to approximately 30 mph (50 km/h) and press the SET/ACCEL Switch. Immediately release the switch and remove foot from the accelerator pedal. The vehicle should maintain the speed at which the SET/ACCEL Switch was pressed. 2. Press the SET/ACCEL Switch and hold at that position. The vehicle should accelerate smoothly until the switch is released. The vehicle should now maintain the new speed at which the SET/ ACCEL Switch was released. 3. Press the RES/DECEL Switch while the vehicle is in the cruise control mode. The cruise control should disengage. Slow to approximately 35 mph (55km/h) and press the RES/DECEL Switch. Immediately release the switch and remove foot from the accelerator. The vehicle should smoothly accelerate to the previously set speed. Increase speed using the accelerator pedal. Releasing the pedal should return the vehicle to the previously set speed. 4. Depressing the brake pedal should immediately disengage the cruise control system and return the vehicle to driver’s control at accelerator pedal. Press the RES/DECEL Switch and the vehicle should accelerate to the previously set speed without operation of the accelerator pedal. 5. Press the RES/DECEL Switch and allow the vehicle to decelerate to below 26 mph (42 km/h). Press the RES/DECEL Switch and remove foot from the accelerator pedal. The vehicle should smoothly adjust to the previously memorized speed. 6. Press the SET/ACCEL Switch below 28 mph (45km/h) and the cruise control system should remain disengaged. Accelerate the vehicle above 28 mph (45 km/h), press the RES/DECEL Switch and remove foot from the accelerator pedal. The vehicle should smoothly adjust to the previously memorized speed. 7. Pressing the Cruise Control Switch (X115) should immediately disengage the cruise control

system and erase the previously set speed from Cruise Control ECU (Z121)/Engine Control Module (ECM) (Z132) memory.

Parts & tools for this job For 1999 Land Rover Range Rover

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