Starting System Land Rover Range Rover Sport L320

SPECIFICATIONS

COMPONENT LOCATION

Note. Installation on naturally aspirated engine shown, installation on supercharger engine similar.

INTRODUCTION

The starter motor is manufactured by Denso and is rated at 1.4 kW. The motor is geared directly to the pinion. The motor is a series wound motor with an overrunning clutch. The interior of the motor is ventilated through a breather tube attached to the rear of the engine.

The starter motor is located on the rear right side of the engine sump. The motor is installed in an aperture in the sump and the pinion is engaged with the ring gear of the crankshaft drive plate.

A heavy duty cable, which supplies the electrical power to turn the starter motor, is connected to the battery positive terminal via 500 A megafuse.

At the starter motor, the cable is connected to a terminal stud on the solenoid. The power feed from the starter relay, to energize the solenoid, is connected to a second terminal stud on the solenoid.

CONTROL DIAGRAM

Note. A = Hardwired.

OPERATION

Engine crank requests are monitored by the passive anti-theft system and, if valid, passed on to the engine control module (ECM). Refer to Anti-Theft - Passive .

When the engine control module (ECM) receives a crank request, it energizes the starter relay in the engine junction box (EJB). The energized starter relay supplies 12 V power to energize the pull-in coil of the starter solenoid. Once activated, the pull-in coil engages the solenoid plunger, which engages the pinion gear with the ring gear. The plunger then closes the solenoid circuit, feeding power from the 500 A megafuse on the battery positive terminal to the starter motor.

PRINCIPLES OF OPERATION

For a detailed description of the starting system and operation, refer to Starting System .

INSPECTION AND VERIFICATION

Note. Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.

1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical and electrical damage. VISUAL INSPECTION Mechanical Electrical Gear selector lever cable adjustment (vehicles with automatic transmission) Starter motor Engine (turns freely) Battery Fuses Starter relay Wiring harness(es) Damaged, loose or corroded connectors Ignition switch Generator Transmission Control Module (TCM) Engine Control Module (ECM)
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index.

SYMPTOM CHART

DTC INDEX

For a list of Diagnostic Trouble Codes (DTCs) that could be logged on this vehicle, please refer to Diagnostic Trouble Code (DTC) Index - DTC: Engine Control Module (PCM) 5.0L V8 .

For a detailed description of the starting system, refer to STARTING SYSTEM .

1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical or electrical damage. VISUAL INSPECTION Mechanical Electrical Steering column Brake pedal Smart key Steering Wheel Fuses Harnesses and connectors Warning lamp operation Smart key operation Engine start operation
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the cause is not visually evident, check for Diagnostic Trouble Codes (DTC's) and refer to the DTC Index.

Note. If the control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the warranty policy and procedures information, or determine if any prior approval program is in operation, prior to the installation of a new module/component.

Note. Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system)

Note. When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places and with a current calibration certificate. When testing resistance, always take the resistance of the digital multimeter leads into account

Note. Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests

Note. Inspect connectors for signs of water ingress, and pins for damage and/or corrosion

Note. If diagnostic trouble codes are recorded and, after performing the pinpoint tests, a fault is not present, an intermittent concern may be the cause. Always check for loose connections and corroded terminals

SYMPTOM CHART

PINPOINT TEST A: SMART KEY NOT FOUND - REFER TO HANDBOOK

PINPOINT TEST B: BACK UP START - 10MY ONWARDS - SMART KEY NOT FOUND - REFER TO HANDBOOK

PINPOINT TEST B: BACK UP START - 10MY ONWARDS - SMART KEY NOT FOUND - REFER TO HANDBOOK TEST CONDITIONS DETAILS/RESULTS/ACTIONS B1: IGNITION MODE FAILS TO SWITCH ON NOTE: In normal operation, pressing the start button for one second will cause the vehicle to enter the ignition mode. If the procedures below are followed the engine should crank NOTE: For automatic transmission vehicles, ensure the brake pedal is depressed and the park or neutral selected NOTE: For manual transmission vehicles ensure the clutch is fully depressed 1. On pressing the start button, smart key not found. When this warning is displayed the smart key should be brought into close proximity with the immobilize antenna unit. For the location of the immobilize antenna unit, see illustration. Hold the key in the location and press the start button again. If this process fails the first time, try repositioning the key around the immobilize antenna unit location, repeat the sequence again Has the vehicle started? Yes No further action required No Contact dealer technical support

PINPOINT TEST C: PRESS START AND BRAKE

PINPOINT TEST D: STEERING COLUMN LOCKED

PINPOINT TEST E: ENGINE STILL NOT CRANKING

Scheme 1

Scheme 2

Scheme 3

1. Refer to «Specifications»(/land-rover/range-rover-sport/l320-2009-2013/remont/charging-system/#battery-charging-system-general-information) .
2. Raise and support the vehicle.
3. Refer to «Engine Undershield»(/land-rover/range-rover-sport/l320-2009-2013/remont/exterior-body-panels/#front-end-body-panels) .
4. Torques: M8: 10 Nm M6: 4 Nm
5. Torque: 48 Nm

INSTALLATION

1. To install, reverse the removal procedure.

See also:
• Anti-Theft - Passive
• Diagnostic Trouble Code (DTC) Index - DTC: Engine Control Module (PCM) 5.0L V8
• Specifications
• Engine Undershield
• Starting System
• Pinpoint Test A
• Pinpoint Test B
• Pinpoint Test C
• Pinpoint Test D
• Pinpoint Test E