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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.

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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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Santa Fe (2.7L) & Sonata (2.5L) 1. Turn ignition off. Disconnect TP sensor 3-pin connector. Measure resistance between TP sensor terminals No. 2 (Orange wire on Santa Fe, Black/White wire on Sonata) and No. 1 (Yellow/Black wire on Santa Fe, Green/White wire on Sonata). See Fig. 1 . Standard resistance value should be 3500-6500 ohms. If resistance is not as specified, replace TP sensor. If resistance is as specified, go to next step. 2. Measure resistance between TP sensor terminals No. 2 (Orange wire on Santa Fe, Black/White wire on Sonata) and No. 3 (Red/Orange on Santa Fe, Blue wire on Sonata). Open throttle slowly from idle position to wide-open throttle position. Resistance should change smoothly in proportion to the throttle valve opening. If resistance changes smoothly, go to next step. If resistance does not change smoothly, replace TP sensor. 3. Reconnect TP sensor connector. Using a voltmeter, backprobe sensor connector terminals No. 1 (Yellow/Black wire on Santa Fe, Green/White wire on Sonata) and No. 3 (Red/Orange on Santa Fe, Blue wire on Sonata). Turn ignition on, and measure TP sensor voltage. Voltage should be 250-800 millivolts. If voltage is not as specified, replace TP sensor.

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1. Remove drive belts and drive pulleys from crankshaft and water pump. Remove timing belt covers. To align timing marks, rotate engine clockwise so No. 1 cylinder is at TDC of compression stroke. Ensure camshaft sprocket timing marks align with upper surface of rocker cover. Dowel pin of camshaft sprocket should be pointing upward. See Fig. 1 and Fig. 2 . 2. Remove timing belt auto tensioner. If reusing timing belt, place mark on timing belt to indicate direction of belt rotation. Remove timing belt. Remove camshaft sprockets. 3. Remove plug at left side of block and insert a screwdriver to hold left counterbalance shaft in position.
Screwdriver will have to be inserted at least 2.36″ (60 mm). Remove oil pump sprocket nut and sprocket. See Fig. 2 . 4. Loosen right counterbalance shaft sprocket mounting bolt. Remove tensioner “B” and timing belt “B”. See Fig. 2 . Remove crankshaft sprocket “B” from crankshaft.

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Fig. 21: Identifying Split Pin & Flange Nut 3. Remove the brake disc. 4. Detach the wheel speed sensor (for a vehicle equipped with Anti-lock Brake System). 5. Remove the parking brake assembly. 6. Remove four (4) the rear housing mounting nuts. Fig. 22: Removing Rear Housing Mounting Nuts
7. Using the special tool (09517-43001), remove the rear hub assembly from the rear housing. Fig. 23: Removing Rear Hub From Rear Housing 8. Using snap ring pliers, remove the wheel bearing snap ring. Fig. 24: Removing Wheel Bearing Snap Ring
9. Using the special tools (09216-22100, 09500-21000, 09527-33000), remove the wheel bearing inner race
from the rear housing.