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Idle air control (IAC) valve – circuit malfunction Wiring, IAC valve, ECM Injector 2 or 3 – circuit malfunction Wiring, injector Mass air flow (MAF) sensor – circuit malfunction Wiring, MAF sensor, ECM Idle air control (IAC) valve – circuit malfunction Wiring, IAC valve, ECM Wiring, HO2S, mechanical fault, fuel system, fuel Heated oxygen sensor (HO2S) – malfunction pressure, ECM AC cooling fan – circuit malfunction Wiring, AC cooling fan Idle air control (IAC) valve – circuit malfunction Wiring, IAC valve, ECM Engine coolant temperature (ECT) sensor – circuit malfunction Wiring, ECT sensor, ECM Intake air temperature (IAT) sensor – circuit malfunction Wiring, IAT sensor, ECM

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1 – AZERA KEY CUTTING PROCEDURE The Azera is equipped with high security internally cut keys. This section of the TSB provides information on how to order complete pre-cut key sets from an HMA Parts Distribution Center. These special high security key blanks cannot be cut by conventional key cutting machines and must be either ordered pre-cut from your Hyundai Motor America Parts Distribution Center or be cut on a specific key cutting machine. Azera key blanks can only be code cut by the BD Laser, a machine produced by Barnes Distribution. This machine may not be available at all Hyundai Dealerships, therefore the option to order them pre-cut from an HMA PDC has been made available. PROCEDURE: When an owner loses an Azera immobilizer key, the customer has two options to replace the lost key. Both options require that the customer bring the vehicle and any remaining keys to an authorized Hyundai dealer. Option # 1 The customer can use any remaining key originally supplied with the vehicle to drive to an authorized Hyundai dealer and request that a new key or key set be cut and programmed. It is important that the customer bring any remaining keys with them to the dealership. Any key that is not programmed (or re-programmed in the case of originally supplied keys) in the same operation will no longer start the vehicle. Option # 2 The customer can have the vehicle towed to an authorized Hyundai dealer and request that a new key or key set be cut and programmed. Again, it is important that the customer bring any remaining keys with them to the dealership. Any key that is not programmed (or re-programmed) in the same operation will be unable to start the vehicle. 1. If the Hyundai dealer does NOT have a Barnes Distribution BD Laser, they MUST call the Hyundai Motor America Parts Call Center at 1-800-545-4515 and make a request (order) for Azera immobilizer keys to be cut. NOTE: Azera immobilizer key blanks can be ordered either in singles (i.e. 1- master) or complete key sets (i.e. 2-master keys and 1-sub or valet key). However, HMA Parts Distribution Centers will only pre-cut complete key sets upon request. They will NOT cut single master keys. 2. The Hyundai dealer MUST provide the following information to the HMA Parts Call Center. • VIN • Key Code • Dealer Code • Dealer Address (exact shipping address) • Dealer Contact (exact name of who the key should be delivered to) • Contact Phone Number and Extension 3. The HMA PDC will expedite the shipping of the key(s) to the dealership address as provided in step 2. 4. Once the dealership has taken delivery of the key(s), the key(s) must be programmed to the vehicle using a Hi-Scan Pro tool. NOTE: The Azera is equipped with immobilizer anti-theft technology that will not allow the newly cut keys to start the vehicle unless they have been first programmed to the vehicle.

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1. Working in the engine bay, use a Phillips head screwdriver to remove the 2 screws over the driver’s side headlight and a 10mm
socket with a ratchet and an extension to remove the 10mm bolt holding the splash guard. Remove the splash guard from the engine bay. Loosen the 10mm bolt (shown by the top arrow) holding the top part of the air box to the throttle body inlet and unclip
the 2 clips holding this part of the air box to the bottom part (also shown by two arrows). Remove the top part of the air box and the
air filter as well. 2. Remove the three 10mm bolts at the bottom of the air box using the socket and ratchet with extension. Remove the bottom part of the air box from the engine bay.

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1. At the crank position sensor, check for battery voltage to be present on the Red wire with the key on and cranking. The Black wire should be a good ground and the Blue wire should have 5 volts on it from the computer. One may have to disconnect the crank sensor to check for the 5 volt reference. 2. During crank look for a good 5 volt square wave signal on the Blue wire. 3. Check at the ignition coils for good battery voltage key on and cranking. If there is a loss of voltage during crank check the ignition failsafe relay. 4. Check for any stored engine codes. Crankshaft Position (CKP) Sensor Ignition Failsafe Sensor The ignition failsafe sensor supplies battery voltage to the ignition coils. The ignition coils can look like they have good battery voltage key on but during crank the ignition failsafe relay can stop sending voltage to the ignition coils.

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This bulletin supersedes TSB# 05-36-004 to correct the reference number of the TSB for throttle initialization procedure. DESCRIPTION: The 2001-2005 MY XG300/350 and Santa Fe 3.5L incorporate an Electronic Throttle control System (ETS). NOTE: Please see TSB 05-36-002 for a general description of the system, its components and the INITIALIZATION procedure. The list of DTC codes has been modified. This TSB lists and explains the updated Diagnostic Trouble Codes (DTC) related to the ETS system. NOTE: Some diagnostic trouble codes (DTCs) for 2004-2005 MY Santa Fe 3.5L and 2004-2005 XG350 vehicles have been added and revised. TSB 04-36-013 provides the newly added and revised DTCs in addition to the diagnostic procedures for these DTCs.