Abs code c1234 jaguar x type

Tabitha, trouble code C1233 left front wheel speed sensor input signal missing. Possible causes:
Faulty left front wheel speed sensor, harness is open or shorted, circuit poor electrical connection .
Have a good tech. diagnose and estimate repair.
Check the attached links,instruction and guides, Good luck
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C1233 Ford Left Front Wheel Speed Sensor Input Signal Missing

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which brake warning light is on? the xtype does not have pad wear sensors fitted. so i guess you mean the abs light or the handbrake light.more than likely its the abs light and the common problem is the reluctor rings on one or the other of the rear outer constant velocity joints corroded/ fell off get the fault codes out of the abs module to help.

air gap on rear abs sensor reluctor rings fouling sensors due to corroded swollen rings. add washers under sensors .make sure all tyres are correct size/aspect ratio e.t.c also front abs sensor leads part of sensor i think are suspect, check fault codes in abs module if it a comparsion fault code its more than likley the rear reluctor ring air gaps

P1603: Transmission Control Module (TCM) EEPROM Failure
C1145: Front right wheel speed sensor input circuit failure

The P1603 means that your TCM has probably failed. It may have a loose solder connection or the PROM chip may have come out of it's slot. EIther way the TM needs tobe removed from the car and repaired/replaced by a qualified repair person.

The C1145 is for the ABS and it may be related to the TCM failure. I am not that familiar with the Jaguar ABS system, but that code means the signal from the front right wheel is bad. May be the sensor or the "tone ring"...

SOUND LIKE FAULT IN A WHEEL SPEED SENSOR OR ABS BRAKE UNIT.. BUT HAVE JAGUAR DEALERSHIP CODE SCAN ABS HYDRALIC MODULATOR BRAKE UNIT. SEE WHAT FAULT CODES SHOW UP.

Po code 1000 is system readyness test, it means it has not met all condtions or flags since last reset of the computer. and the other C1165-Wheel speed sensor circuit right rear electrical failure and C1235-Wheel speed sensor circuit right rear signal failure
Possible Source(s):

• Harness fault.
• Connector loose or corroded.
• Connector pin(s) bent or tracking between connections.
• Sensor gap incorrect.
• Foreign matter on sensor face.
• Missing tooth on sensor wheel.
• Faulty Sensor.
• Most Likey cause the harness got knocked off the sensor. If you need more help let me know.

C1175 ABS/TCCM Anti-lock braking / traction control LH rear wheel speed sensor circuit fault ABS/TCCM to wheel speed sensor signal circuit (FH33-21): open circuit, short circuit to ground, short circuit to B+ voltage, high resistance LH rear wheel speed sensor failure
P1000 is for check not complete after last memory clear , dont worry about it , just stick with C1175 , and most probably it is the sensor wire

Could be your Rear ABS sensors , as that is the sensor that works for ABS and Traction control.

speedometer get speed signal from ABS. ABS and DSC are two functionality in same ECU. 
You shall read faults from ABS/DSC ECU.
Most frequently, there are problems with speed sensors on wheels.
With ignition on, you shall measure voltage on both wires (- pole of voltmeter shall be connected on vehicle ground). You will see one sensor without voltage supply. This will sensor with problem. you can, for check, change sensors on same axle (left and right). 
Switch ignition off, and on. 
If voltage supply missing will go on another side (with faulty sensor), you will be sure that is problem is sensor.

I recently had the same code come up when my car failed to start in the mornings. It also said that the crank sensor had failed. Having changed the sensor and still not starting it went back to the garage. According to a Jag enineer the ECU will fail to register if it gets less than 12v from the battery, this will also throw up several codes for the diagostics. Solution, change the battery. Problem solved.