Online PDF Repair Manual Download link for 1997 – 2001 Infiniti Q45
This manual is about ENGINE WILL NOT START
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2000 – 2001 I30 (CA33) 1999 I30 (CA32) 1999.5 – 2001 QX4 (JR50) 1997 – 2001 Q45 (FY33) 2000 – 2001 G20 (P11) APPLIED VINS: All APPLIED DATES: Start of production SERVICE INFORMATION This bulletin describes and introduces new features of the Infiniti Vehicle Immobilizer System/Nissan Anti-Theft System (IVIS/NATS). The system is customary equipment on every of the utilized autos listed above. The IVIS/NATS is not going to enable the engine to start without using a registered ignition key. If a vehicle will not begin and the Safety lamp is on solid, it might be because the ignition keys weren’t correctly registered into the automobile’s NATS IMMU (Immobilizer control unit). On this case, there will likely be a “DIFFERENCE OF KEY” code stored in the NATS IMMU. When the NATS ignition key, IMMU, or ECM (ECCS control unit) are changed, C/U initialization is necessary. It is usually necessary when registering keys and as a part of many NATS Service Manual diagnostic procedures. If the NATS ignition key, vehicle’s ECM or NATS IMMU have been changed, C/U Initialization and Key Registration MUST BE PERFORMED OR THE VEHICLE WILL NOT START.
THE FOLLOWING POINTS MUST BE FOLLOWED IF C/U INITIALIZATION AND KEY REGISTRATION ARE BEING PERFORMED:
• Before proceeding with Key Registration all current ignition keys to the automobile must be collected from the customer. All prior key IDs can be erased once the method is began and the earlier keys won’t begin the vehicle. All ignition keys that are going to be used for the car should be current, out there and registered during Key Registration or THEY WILL NOT START THE VEHICLE.
• To forestall transponder interference maintain all NATS ignition keys and different transponders away from the key being registered during the Key Registration course of (see NOTES ABOUT TRANSPONDER INTERFERENCE, under). This ensures the right ID code for each key registered is stored into the NATS IMMU memory. For more particulars see “NATS C/U Initialization and Key Registration ” later in this bulletin. Refer to the precise model and 12 months you’re working with. NOTES ABOUT POSSIBLE TRANSPONDER INTERFERENCE:
• If an NATS-outfitted automobile experiences an intermittent no start incident, the cause could be the shut proximity of another transponder with a frequency just like the transponder in the NATS key. Transponders such as the Mobil Speedpass® (see Determine 1) might function on the same frequency because the NATS transponder in the NATS key head. These transponders may trigger frequency interference, putting the vehicle into anti-theft mode and creating a no start condition. Determine 1
• To cause this no start condition, the incident transponder have to be inside 2-3 centimeters of the Infiniti key head. For instance, a buyer may have the Mobil Speedpass® on the identical keyring because the NATS key.
• Transponders may be a stand-alone system such as the Mobil Speedpass® or it might be incorporated into the top of one other key. Along with the Mobil Speedpass®, other transponders which will trigger this incident are keys (automobile immobilizers) for: Lexus, Ford, Lincoln, Mercury and Mercedes Benz. A key for a second NATS-equipped automobile can also cause this incident.
• As soon as the automobile is began, transponder interference is not going to trigger the engine to stall. There is no MIL “on” for this incident. CONSULT – will display “Difference of Key”.
• To avoid these occurrences advise the shopper to keep all other transponders on separate keyrings.
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