LS400 change ignition lock
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Filed Under (Chevrolet) by admin on 10-04-2011
Power Door Locks Inoperative Diagnostic Instructions • Perform the Diagnostic System Check – Vehicle prior to using this diagnostic procedure. • Review Strategy Based Diagnosis for an overview of the diagnostic approach. • Diagnostic Procedure Instructions provides an overview of each diagnostic category. Diagnostic Fault Information Circuit Switch Side Supply Voltage Relay Door Lock/Unlock Signal Door Latch Control Driver Door Lock Switch Ground Passenger Front Door Lock Switch Ground BCM Ground 1. Door Lock Malfunction 2. Door Lock Switch Malfunction Circuit/System Description The DR LCK fuse supplies battery positive voltage to the body control module BCM for the door lock system. The BCM supplies and monitors a reference voltage to the door lock switch through the door lock switch lock/unlock signal circuit. The door lock switch also receives a constant ground source. If a door lock switch is placed in the lock position, the reference voltage is taken directly to ground and the BCM senses 0.0 volts on the signal circuit. If a door lock switch is placed in the unlock position, the reference voltage is taken to ground through a 1.5k ohm resistor that is internal to the door lock switches and senses approximately 2.9 volts on the signal circuit. This is how the BCM determines what portion of the door lock switch was activated. The BCM, upon receipt of a door lock switch lock or unlock signal, will switch the appropriate door lock actuator control circuits to battery positive voltage. The opposing side of the door lock actuators are connected to ground internally within the BCM through the other door lock actuator control circuit and the doors will lock or unlock appropriately. Vehicles without keyless entry have two internal drivers in the BCM to control the door lock actuators. All door lock and all door unlock. Vehicles equipped with keyless entry have three internal drivers in the BCM. Driver door unlock, passenger door unlock and all door lock. This is done to isolate the driver door lock actuator so it can be unlocked by itself using the keyless entry transmitter.
Filed Under (Honda) by admin on 03-01-2011
Spark Check for spark at secondary coil wire and each spark plug wire using a spark tester. If spark is not present, continue with following tests. Check spark plug wire resistance on suspect wires. Resistance should be less than 25,000 ohms. Ignition Coil Power Source 1. On Civic, remove distributor cap to check power source directly at coil. On all models, disconnect ignition coil primary leads. Turn ignition on. Using voltmeter, check voltage between ground and Black/Yellow wire terminal of ignition coil harness. 2. Battery voltage should be present. If battery voltage is not present, check for open in Black/Yellow wire between coil and ignition switch. Ignitor Power Source Turn ignition off. Disconnect harness connector at distributor. Turn ignition on. Using voltmeter, check for battery voltage between ground and Black/Yellow wire of harness. If voltage is not present, check for open in Black/Yellow wire between ignition coil and harness connector. If wire is okay, check ignition coil resistance (for internal short to ground). Ignitor Check Check TDC/CRANK/CYL sensor resistance values. See TACH PULSE SIGNAL . Check power sources. If no problems are found and spark is not present, replace ignitor. Ignition Coil Resistance (Accord & Prelude) 1. Remove primary and secondary leads from ignition coil. Using an ohmmeter, check resistance between primary terminals “A” and “C” (“A” and “B” for Prelude) of ignition coil. See Fig. 2 . Resistance should be .6-.8 ohm at room temperature. 2. On Accord, check resistance between terminals “B” and “D” of ignition coil (tachometer circuit). Resistance should be about 2090-2310 ohms at room temperature. 3. On all models, check secondary resistance between terminal “A” and secondary output terminal (coil tower). See IGNITION COIL RESISTANCE table. Check for continuity between terminals “A” and “B” (“A” and “C” for Prelude). Continuity should exist. If readings are not within specification, replace coil.
Filed Under (Ford) by admin on 05-11-2010
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
Filed Under (Isuzu) by admin on 30-04-2011
TSB SB05-05-5004 Shift Lock Solenoid ISSUE DATE: MAY 2005 Affected Vehicles 2002-2004 Isuzu Axiom (UP) 1998-2004 Isuzu Rodeo (UE) and Rodeo Sport (UA) Service Information Use the following steps to remove and replace the Shift Lock Solenoid. Service Procedure 1. Access the Shift Lock Solenoid by removing the Center, Front, Rear Console Assemblies, Selector Lever Knob, and Cover Assembly. Refer to the Selector Lever section in the Service Manual. 2. Set parking brake, move Selector Lever to lowest gear, and remove the Shift Lock Cable. 3. Remove the two screws securing the Shift Lock Solenoid to the Selector Lever subassembly. Disconnect the Shift Lock Solenoid 2-pin connector. 4. Disconnect the 1-40 (Rodeo) or 1-3 (Axiom) six-pin connector and slide the female connector off bracket. Remove the Terminal Position Assurance (TPA) Lock from the connector. Locate the two blue wires in position 1 and 3 on the female connector. With appropriate tool (shown above), apply light pressure upward on the connector locking tab while gently pulling on the blue wire to release. Note :Never use force to remove a terminal from a connector. 5. Insert the two blues wires from the replacement Shift Lock Solenoid into the 1- 40 (Rodeo) or 1-3 (Axiom) female connector. It does not matter which blue wire is inserted into the 1 and 3 position. Gently tug the blue wires to make sure they are secure. NOTE iscard the extra 2-pin connector sub harness included with replacement Shift Lock Solenoid P/N 8-97181-068-2. 6. Reconnect the Shift Lock Solenoid 2-pin connector and reattach the two screws securing the Shift Lock Solenoid to the selector lever subassembly. 7. Reconnect the 1-40 (Rodeo) or 1-3 (Axiom) six-pin connector and slide the female connector onto the bracket. 8. Reinstall the Selector Lever Knob, Cover Assembly, Center, Front, and Rear Console Assemblies. Refer to the Selector Lever section in the Service Manual. 9. Check Shift Lock operation: a. With ignition key in “Lock” position, Selector lever should not move from “P” position. b. With ignition key in “ON” position and brake pedal depressed. Selector lever can be moved out of “P” position. c. Key can be removed only when turned to “LOCK” position and selector lever is in “P” position.
Filed Under (Ford) by admin on 19-06-2010
1. Insert the first programmed ignition key into the ignition and turn the ignition from OFF to ON (maintain the ignition in ON for 1 second). 2. Turn the ignition to OFF and remove the first key from the ignition lock cylinder. 3. Within 10 seconds of turning the ignition to OFF, insert the second programmed ignition key into the ignition and turn the ignition from OFF to ON (maintain the ignition in ON for 1 second). 4. Turn the ignition to OFF and remove the second key from the ignition lock cylinder. 5. Within 20 seconds of turning the ignition to OFF, insert the unprogrammed ignition key (new key) into the ignition and turn the ignition from OFF to START (attempt to start the vehicle). 6. If it is desired to program additional keys, repeat the key programming procedure from the beginning.