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 MANUALSJAGUAR1994VANDEN PLAS L6-4.0LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTRANSMISSION CONTROL SYSTEMSRELAYS AND MODULES - TRANSMISSION AND DRIVETRAINRELAYS AND MODULES - A/TCONTROL MODULEDESCRIPTION AND OPERATIONTRANSMISSION DECODER MODULE
1994 Jaguar Vanden Plas L6-4.0L
Transmission Decoder Module
1994 Jaguar Vanden Plas L6-4.0LSECTION Transmission Decoder Module
Transmission Control System:
PURPOSE
Decoder module informs the engine management ECM when either "P" or "N" is selected. The input is used by the ECM to make adjustments required to compensate for engine load changes that occur when "P" or "N" are engaged or disengaged.
OPERATION
A cable operated rotary switch (neutral safety switch) converts gear selections into electrical signals transmitted to transmission ECM and decoder module. Module informs engine management ECM when either "P" or "N" is selected.
LOCATION
Mounted on side of transmission.
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.