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2004 Ford Focus Ignition System – Cannot Remove/Turn Key/Chime ON

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Filed Under (Ford) by admin on 05-11-2010

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IGNITION KEY DIFFICULT OR UNABLE TO BE TURNED OR REMOVED – KEY-IN-IGNITION WARNING CHIME SOUNDING WITH KEY REMOVED Some 2000-2005 Focus vehicles may exhibit ignition key related issues including difficulty or an inability to turn the key, an inability to remove the key, or (2005 only) the key-in-ignition warning chime continuing to sound even when the key is removed. ACTION Based on the vehicle’s symptom, refer to the appropriate Service Procedure. SERVICE PROCEDURE UNABLE TO REMOVE IGNITION KEY 1. Check if the inability to remove the key is the result of normal operation of the key removal inhibit circuit: In automatic transmission equipped vehicles, the key removal inhibit solenoid (within the ignition switch assembly) is energized when the gear selector is moved out of the park position, and prevents the ignition key from being removed. If the gear selector is in any position other than park when the key is rotated or turned off, the key removal inhibit circuit will not release the key (key cannot be removed). To remove the key, the gear selector must first be placed in the park position, then the ignition must be cycled to run and back to lock. This is normal, do not replace the ignition lock cylinder if it is operating as described. 2. Refer to Workshop Manual, Section 307-05 and follow diagnostics for the “shift interlock system”. The shift interlock system includes the key removal inhibit circuit, which may be causing the concern. If the shift interlock system is operating correctly, replace the ignition lock cylinder. Refer to Workshop Manual, Section 501-14, “Ignition Lock Cylinder Functional” removal and installation procedure. DIFFICULT OR UNABLE TO TURN IGNITION KEY

2002 BMW 525I 2003 BMW X5 2001 BMW Z3 Roadster Check engine light is on.

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Filed Under (BMW) by admin on 11-06-2010

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1. Use a scan tool to monitor the fuel trim numbers and the Mass Air Flow (MAF) sensor data stream grams/sec readings. Nominal
values are 5 grams/sec at idle in Park, and >150 at Wide Open Throttle (WOT) and 5000 RPM, in gear. Some scan tools have a freeze frame feature, which is useful in trouble shooting if the problem is set at idle versus at cruise. Vacuum leaks and crankcase breather problems generally show up at idle. Voltage at the airflow meter should be .7-.9V at idle and increase from there with more airflow. 2. Monitor the crankcase vacuum with a vacuum gauge, which can be adapted onto the tube for the oil dipstick. Specification for the crank case vacuum is 8 to 15 millibar, this equals about 1/4 to 1/2 PSI or pounds per square. So, 1 PSI of vacuum would be twice as much as there should be at idle. The proper method, per BMW, is to use a slack tube manometer which can be made easily with clear tubing and making it into a U shape and have it marked in inch increments then half fill it with water. When crankcase vacuum is applied to one side of the tubing it should displace 4 to 6 inches of water if the crankcase breather is working correctly. 3. Monitor the fuel pressure. It should be a constant 50 – 53 PSI.

IMMOBILIZER KEY CODE RESET 4Runner, Camry, Highlander, Land Cruiser, MR2 Spyder, RAV4, Sequoia, & Solara

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Filed Under (Toyota) by admin on 22-04-2010

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Introduction Immobilizer Reset is a new feature that allows the registration of a new Master Key even if all original Master Keys are lost. Once the Immobilizer system is reset, all previously registered keys will be erased.Function
The Immobilizer Reset function is a 5-step process: Description 1. Using the Diagnostic Tester, retrieve a “Seed Number” through the OBD/MOBD Immobilizer function. S A “Seed Number” is a unique number provided by the Diagnostic Tester and validated by TIS in order to return a Passcode. 2. Using TIS, select Immobilizer Reset, and complete the request form to retrieve a “Passcode Number.”
S A “Passcode Number” is a unique number required by the Diagnostic Tester to reset the ECU allowing it to accept a new Master Key. 3. Enter the “Passcode Number” received from TIS into the Diagnostic Tester. 4. Confirm successful Immobilizer reset and new Master Key registration. 5. Register any additional customer keys.

1997-2000 CHEVROLET CORVETTE Maintenance Reminder Lights RESET PROCEDURES

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Filed Under (Chevrolet) by admin on 06-10-2010

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INTRODUCTION Some models may be equipped with one or more resettable maintenance reminder lights indicating service is required. Once services are performed, resetting of lights may be required. Information is provided to reset these lights where applicable. Most vehicles are equipped with a computer malfunction indicator light. If light comes on and remains on while driving, the vehicle requires service. After repairing fault(s) and clearing fault code(s), the malfunction indicator light should go out. Some models may use a dual-function indicator light, which is also used to indicate emission component service is due. After performing required service, reset indicator light. RESET PROCEDURES (CADILLAC) NOTE: 1980 CADILLAC 1. Every 15,000 miles, a reminder flag appears in speedometer face, indicating service of oxygen sensor is necessary. Inspect and service oxygen sensor as necessary, and reset flag. 2. To reset flag, remove lower steering column cover. Sensor reset cable is located to the left of the speedometer cluster. Pull cable lightly (maximum 2 lbs. force). Reinstall lower steering column cover. 1989-93 ALLANTE Engine Data Display 1. An OIL LIFE INDEX is one of the displays on Driver Information Center (DIC). It will display remaining oil life as a percentage estimate of the useful life of oil. 2. It will show 100 percent when the system is reset. When the oil life is 0 percent, the display will show CHANGE ENGINE OIL. After changing oil, reset oil life display. 3. To reset service reminder on 1989 models, press RANGE button until OIL LIFE INDEX appears on display. Depress and hold in AVG ECON and RANGE buttons for more than 5 seconds or until 100 is displayed. This will reset remaining oil life to 100 percent. 4. On 1990-93 models, press RANGE button until OIL LIFE INDEX appears on DIC display. Depress and hold in AVG SPEED and RANGE buttons for more than 5 seconds or until 100 is displayed. This will reset remaining oil life to 100 percent. 1989-91 ELDORADO & SEVILLE Most General Motors 1981-88 vehicles do not use a Service Reminder Indicator (SRI).

2005 Chrysler 300 Alarm System Transponder Description and Operation

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Filed Under (Chrysler) by admin on 10-08-2010

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Each ignition key (2) used in the Sentry Key Remote Entry System (SKREES) has a transponder chip included on the circuit board (4) beneath the cover (1) of the integral Remote Keyless Entry (RKE) transmitter (3). In addition to having to be cut to match the mechanical coding of the ignition lock cylinder and programmed for operation of the RKE system, each new Sentry Key has a unique transponder identification code that is permanently programmed into it by the manufacturer, and which must be programmed into the Sentry Key REmote Entry Module (SKREEM) to be recognized by the SKREES as a valid key. The Sentry Key transponder cannot be adjusted or repaired. If faulty or damaged, the entire key and RKE transmitter unit must be replaced. When the ignition switch is turned to the On position, the Sentry Key REmote Entry Module (SKREEM) communicates through its antenna with the Sentry Key transponder using a Radio Frequency (RF) signal. The SKREEM then listens for a RF response from the transponder through the same antenna. The Sentry Key transponder chip is within the range of the SKREEM transceiver antenna ring when it is inserted into the ignition lock cylinder. The SKREEM determines whether a valid key is present in the ignition lock cylinder based upon the response from the transponder. If a valid key is detected, that fact is communicated by the SKREEM to the Powertrain Control Module (PCM) over the Controller Area Network (CAN) data bus, and the PCM allows the engine to continue running. If the PCM receives an invalid key message, or receives no message from the SKREEM over the CAN data bus, the engine will be disabled after about two seconds of operation. The ElectroMechanical Instrument Cluster (EMIC) will also respond to the invalid key message on the CAN data bus by flashing the security indicator on and off.