2010 JAGUAR XFR Workshop Manual

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Page 1257 of 3039

JAGUAR XFR 2010 1.G Workshop Manual
Make sure the supercharger belt is correctly aligned to the pulleys.
Failure to follow this instruction may result in damage to the vehicle.

Clean and inspect the accessory drive belt pulleys

Page 1258 of 3039

JAGUAR XFR 2010 1.G Workshop Manual Starter motor retaining bolts 47 35 - Battery positive terminal connector retaining nut 10 7 - Solenoid terminal connector retaining nut 7 - 62 www.JagDocs.com

Page 1259 of 3039

JAGUAR XFR 2010 1.G Workshop Manual Published: 11-May-2011
Starting System - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Starting System - Component Location
Description and Operation

NOTE: Installation on supercharged engine shown, inst

Page 1260 of 3039

JAGUAR XFR 2010 1.G Workshop Manual 1 Bolt (2 off) 2 Heat shield 3 Starter solenoid 4 Solenoid power terminal 5 Pinion gear 6 Starter power terminal 7 Electric motor 8 Breather tube

Page 1261 of 3039

JAGUAR XFR 2010 1.G Workshop Manual Published: 11-May-2011
Starting System - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Starting System - System Operation and Component Description
Description and Operation

Control Diagram

NOTE: A = Ha

Page 1262 of 3039

JAGUAR XFR 2010 1.G Workshop Manual
When the ECM receives a crank request, it energizes the starter relay in the EJB (engine junction box). The energized starter relay supplies 12 V power (fed via the 250 A megafuse in the BJB (batter

Page 1263 of 3039

JAGUAR XFR 2010 1.G Workshop Manual Published: 11-May-2011
Starting System - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Starting System
Diagnosis and Testing

Principles of Operation

For a detailed description of the starting system and

Published: 11-May-2011
Starting System - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Starting System
Diagnosis and Testing

Principles of Operation

For a detailed description of the starting system and operation, refer to the relevant Description and Operation section of the
workshop manual. REFER to: (303-06C Starting System - V8 5.0L Petrol/V8 S/C 5.0L Petrol)

Starting System (Description and Operation), Starting System (Description and Operation), Starting System (Description and Operation).
Inspection and Verification

CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not
guarantee confirmation of a fault and may also cause additional faults in the vehicle being checked and/or the donor vehicle.

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

Symptom Possible Causes Action The engine does
not crank (starter
motor does not
turn)
Gear selector not in P or N
position (vehicles with
automatic transmission)
Battery
Starter relay
Invalid key code received by
Central Junction Box (CJB)
Harness/Connectors
Starter motor
Ignition switch
Generator
Transmission Control Module
(TCM)
Engine Control Module (ECM)
Engine seized Make sure the gear selector is in the P or N position and correctly
adjusted. Check the battery condition and state of charge. Check for
DTCs indicating an immobilizer fault. Check the starter motor relay,
ignition switch and generator circuits. Refer to the electrical guides.
Check for TCM and ECM DTCs. Check that the engine turns freely. The engine does
not crank (starter
motor does turn)
Starter motor installation
Starter motor
Flywheel/Drive plate ring
gear Check the starter motor installation (fasteners tight, starter motor
square to engine, etc). Check the flywheel/drive plate ring gear teeth
for damage, foreign objects, etc. www.JagDocs.com

Page 1264 of 3039

JAGUAR XFR 2010 1.G Workshop Manual
Symptom Possible Causes Action Engine cranks too
slowly
Battery
Harness/Connectors
Starter motor
Oil grade Check the battery condition and state of charge. Check the starter
motor circuits. R

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