Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJAGUAR1991XJ-6 L6-4.0LREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - INSTRUMENT PANELSPEEDOMETER MODULESERVICE AND REPAIR
1991 Jaguar XJ-6 L6-4.0L
Speedometer Module: Service and Repair
1991 Jaguar XJ-6 L6-4.0LSECTION Service and Repair
SPEED SENSOR
RENEW
Drive vehicle onto ramp.
Open bonnet and disconnect battery earth lead.
Open luggage compartment and remove trim.
Disconnect speed sensor cable harness block connector.
Raise vehicle on the ramp.
Cut and remove cable straps.
Remove bolts securing the speed sensor.
Displace and remove the sensor.
On refitting new sensor ensure air gap between sensor probe and toothed wheel is 0.5 to 0.9 mm.
Fit and tighten the securing bolts.
Secure the harness with new cable straps.
Lower ramp.
Refit the harness block connector.
Refit the luggage compartment trim.
Reconnect battery earth lead.
RENEW
Drive vehicle onto ramp.
Open bonnet and disconnect battery earth lead.
Open luggage compartment and remove trim.
Disconnect speed sensor cable harness block connector.
Raise vehicle on the ramp.
Cut and remove cable straps.
Remove bolts securing the speed sensor.
Displace and remove the sensor.
On refitting new sensor ensure air gap between sensor probe and toothed wheel is 0.5 to 0.9 mm.
Fit and tighten the securing bolts.
Secure the harness with new cable straps.
Lower ramp.
Refit the harness block connector.
Refit the luggage compartment trim.
Reconnect battery earth lead.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.