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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSJAGUAR2000XJR (X308) V8-4.0L SC (AJ27)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTRANSMISSION POSITION SENSOR/SWITCHDESCRIPTION AND OPERATION
2000 Jaguar XJR (X308) V8-4.0L SC (AJ27)
Transmission Position Sensor/Switch: Description and Operation
2000 Jaguar XJR (X308) V8-4.0L SC (AJ27)SECTION Description and Operation
Dual-Linear Switch (DLS)
The TCM detects gear selection by means of a switch fitted to the 'J' gate, the DLS contains two multi-track slider switches, of which the upper controls P R N D and the lower 4, 3 2.
Output from the DLS is changed as the selector lever is moved, thus indicating selected gear position. The parallel signal is input to the TCM by 4 discrete logic wires WO, W1, W2 and W3. The particular sequence, or gray code, will indicate which shift position is selected, as shown in the following table where 0 = low and 1 = high:
Gray code
The TCM detects gear selection by means of a switch fitted to the 'J' gate, the DLS contains two multi-track slider switches, of which the upper controls P R N D and the lower 4, 3 2.
Output from the DLS is changed as the selector lever is moved, thus indicating selected gear position. The parallel signal is input to the TCM by 4 discrete logic wires WO, W1, W2 and W3. The particular sequence, or gray code, will indicate which shift position is selected, as shown in the following table where 0 = low and 1 = high:
Gray code
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.