X Type Hidden Diagnostic Mode

Nothing you can do , except make it worst . All vehicles from 2000 on have a transponder chip inside the key head . You need a factory or some other professional type scan tool to read codes in the theft - deterrent module . You can't guess an fix the problem . You can buy a launch scan tool for about $800.00 that would work. You need to know the code stored .

https://www.aa1car.com/library/troubleshoot_antitheft_system.htm

NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS) PFP:25386 Description UBS00MOP ? If the security indicator lights up with the ignition switch in the ON position or "NATS MALFUNCTION" is displayed on "SELF-DIAG RESULTS" screen, perform self-diagnostic results mode with CONSULT-II using NATS program card. Refer to BL-102, "NVIS(NISSAN Vehicle Immobilizer System-NATS)" . ? Confirm no self-diagnostic results of NVIS (NATS) is displayed before touching "ERASE" in "SELF-DIAG RESULTS" mode with CONSULT-II. ? When replacing ECM, initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs must be carried out with CONSULT-II using NATS program card. Therefore, be sure to receive all keys from vehicle owner. Regarding the procedures of NVIS (NATS) initialization aand all NVIS (NATS) ignition key ID registration, refer to CONSULT-II Operation Manual, IVIS/NVIS. SEF543X

it needs programming using suitable diagnostic equipment using jag software i.e. jaguar wds. or ids.i don't think there is another way to do it.

System suffered from air locks.... has bleed ports in engine compartment on hose and 'stat housing.

Another problem common to these is the Blend Door motor failing. You can listen to it move with engine off and key in RUN position...turn heater cold to hot and listen for whirring in dash area.

If engine has suffered overheating the coolant flow valve just under the brake booster melts and no longer moves.

This system can only be properly diagnosed with a Jaguar compliant scanner. There is a on-board diagnostics that will show readout on the cluster.

Search ''JAGUAR ETM DIAGNOSTICS '' with your browser search engine..'Google' is good.

ETM is a test mode for Jaguar cars . You will find sites and PDF tutorials and other information on the search. .

Check fuses first. please rate as fixed if this solves you rissue. report back results.



VISUAL INSPECTION CHART
Mechanical Electrical

• Integrated control panel with or without tape player physically damaged, misaligned, any controls inoperative.
• Digital audio compact disc player physically damaged, misaligned, any controls inoperative.
• Radio antenna lead in cable, electric antenna or bodyphysically damaged or misaligned connections.
• Radio speaker mounting/speaker cones physically damaged, misaligned.
• Radio ignition interference capacitor or radio frequency interference suppression bond misaligned, unclean and no metal-to-metal contact.
• Mobile telephone transceiver; mobile telephone handset, mobile telephone microphone, mobile telephone transceiver holder cradle physically damaged, misaligned.

• Open fuses: fuse junction panel fuses 8 (5A), 12 (5A), 20 (5A), 22 (5A), 24 (5A) or power distribution box fuse 17 (20A).
• Open connectors.
• Corroded connectors.

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Section 15-00: Audio Systems—Service 1999 Taurus, Sable Workshop Manual DIAGNOSIS AND TESTING Inspection and Verification NOTE: Many customers do not understand the limitations of FM reception. Refer the customer to the Owner Guide for information about the limitations of FM radio performance.

Internal diagnostic examination of the integrated control panel, rear chassis unit and audio compact disc player should be left to the authorized radio service center. However, the automotive technician should be able to analyze and isolate radio reception conditions to the proper area or component causing the condition. All radio conditions can be isolated to one of six general areas:

• antenna system
• integrated control unit
• radio speaker system
• radio noise suppression equipment
• rear chassis unit
• audio communications protocol network

Retrieving Diagnostic Trouble Codes (DTCs)
Using Audio System On-Board Diagnostics
The audio system has on-board diagnostic capabilities and is equipped to check for every component available in the system even if this specific vehicle is not equipped with all components. A Diagnostic Trouble Code (DTC) will be set for the missing components. These DTCs can be ignored if the vehicle is not equipped with these components. The battery must be fully charged for proper audio system operation. The ignition switch must be in the RUN or ACC position. Turn the system on, tune in a strong AM station and verify good reception. After an AM station is checked, tune in a strong FM station. The system is now ready to enter the diagnostic mode. Diagnostic Mode:
NOTE: Battery must be fully charged for proper audio system operation and self-test.

Enter Diagnostics mode by pressing SEEK DOWN button first and then pre-set button 3. Hold both buttons for five seconds. This will suspend all normal radio functions, retain the previously selected frequency and display DIAG.

1. NOTE: To perform diagnostics, press the appropriate buttons as instructed.
   
   SYSTEM CONFIGURATION SELF-TEST:
   Press pre-set button 1. This will check for connection of all possible devices and log the diagnostic trouble codes for any device that does not respond. The display will flash SELF while gathering the diagnostic trouble codes, then stop flashing when complete. To exit System Configuration Self-test, press pre-set button 1 again. To retrieve diagnostic trouble codes, press the TUNE UP button. This will display the diagnostic trouble codes if any exist. Continued pressing of the TUNE UP button will display the next diagnostic trouble code. Record codes and refer to the following table. To exit the Retrieval Mode, press pre-set button 1.
   
   
   CONFIGURATION SELF-TEST CODES Code Description 0 No diagnostic trouble codes logged 1 No response from rear chassis unit 2 No response from tape deck 3 No response from bezel microprocessor 4 No response from compact disc player 5 No response from steering wheel controls 6 No response from rear seat control 7 No response from remote climate control 8 No response from navigation module 9 Read Only Memory verification failed
   Remember, system configuration will test for all possible equipment connections. Inspect the vehicle to determine actual equipment installed.
   

1. Integrated control panel display test:
   To enter the integrated control panel display test, press pre-set button 5. This check will light all segments in the integrated control panel. The system will automatically exit this test after five seconds.
   

1. Integrated control panel and rear chassis unit identification:
   To enter this test, press pre-set button 3. This test identifies the software level of the integrated control panel and rear chassis unit. The integrated control panel is tested first, followed by the rear chassis unit. The completed test will exit automatically. For code identification, refer to the following table. The display will have two sequences of five codes each. The first sequence is for the integrated control panel, the second sequence is for the rear chassis unit.
   
   
   
   
   
   Item Part Number Description 1 — Product Type Code 2 — Product Variant Code 3 — Software Version Level 4 — Software Version Release 5 — Software Version Patch