Question about 1994 Mercedes-Benz S-Class

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Ignition lock system failed - 1994 Mercedes-Benz S-Class

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If the cylinder is jamming occasionally, then have it replaced immediately. If the cylinder is jammed up and will not turn, take it to the dealer and let them have a go at it. If you've decided to already delve into it yourself and have locked it down, then get out the hacksaw and start cutting. I've found that if you remove the electronic portion of the switch and take an airsaw to the lock portion only-not the steering column that it is bolted to-and cut through it, you can hopefully get the guts to fall out of the lock and you will be able to remove the lockpin that has fallen into the mechanism. If not, then it's also a new steering column.

Posted on Nov 13, 2008

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Need to get 98 s10 2.2 to rset passlock . howcan i trick computer withturn signal switch, i seen it done once


No you didn't ! you only think you did . Turn signal switch has nothing to do with it .
Ignition Lock Cylinder and Housing
The ignition lock cylinder is located at the upper right side of the steering column. The Passlock™ sensor is in the steering column. The Passlock™ sensor is separate from the key and lock cylinder. The key and the lock cylinder work together in order to determine if the proper ignition key was used to start the vehicle.
In the event of an open Class 2 serial data line between the BCM and the VCM/PCM, the vehicle will become fail-enabled if the VCM/PCM has already received the password from the BCM for that ignition cycle (the engine is running). In this event, the following conditions occur:
• The security telltale will be ON continuously.
• The VCM/PCM will become fail-enabled for future ignition cycles.
If a failure in the Class 2 serial data line occurs before the ignition cycle, when the VCM/PCM is not fail-enabled, the following conditions occur:
• The VCM/PCM will never receive a valid password in order to enable the fuel injectors.
• The vehicle will not start.

The design of the passlock™ system is to prevent the vehicle operation if the proper ignition key is not used in order to start the vehicle. The mechanical key, in normal operation, will turn the passlock™ lock cylinder. The passlock™ sensor will relay the passlock™ data to the body control module (BCM). The BCM will determine the validity of the passlock™ data. The BCM will send a code password to the vehicle/powertrain control module (VCM/PCM). When the VCM/PCM receives the correct code the VCM/PCM allows the fuel injectors to operate normally. The passlock™ system requires the VCM/PCM and the BCM to communicate the various functions in order to operate. These functions transmit over the class 2 serial data line CKT 1807. For an explanation of the class 2 serial data operation refer to Data Link Connector Circuit Description in Wiring Systems.
Your best bet , take it to a qualified repair shop , there is a real possibility of rendering your vehicle useless if you don't know what your doing

Nov 13, 2016 | 1998 Chevrolet S-10 Pickup

2 Answers

I had a locked car light come on in my 2006 chevy malibu, it no longer will drive. doesnt turn off, goes in reverse but when in drive, just revs like the car is in neutral, why?


The lock an car symbol is for the anti-theft system ! By not turning off, do you mean you can't turn the key to the off position or you can turn the key to off but the car won't shut off ?
It sounds like you have a Power Mode Mismatch
The ignition switch is an input to the BCM - body control module an if something happens to the system , the BCM will keep the vehicle in the last known mode Since the operation of the vehicle systems depends on the power mode, there is a fail-safe plan in place should the power mode master (PMM) fail to send a power mode message. The fail-safe plan covers those modules, using exclusively serial data control of power mode, as well as those modules with discrete ignition signal inputs.
You could have an ignition switch problem or something wrong with the BCM .
Discrete Ignition Signals Those modules that have discrete ignition signal inputs, also remain in the state dictated by the last valid PMM message received on the serial data circuits. They then check the state of their discrete ignition input to determine the current valid state. If the discrete ignition input is active, battery positive voltage, the modules will fail-safe to the RUN power mode. If the discrete ignition input is not active, open or 0 volts, the modules will fail-safe to OFF-AWAKE. In this state, the modules are constantly checking for a change status message on the serial data circuits and can respond to both local inputs and serial data inputs from other modules on the vehicle.
This is one you need to take to the dealer because they have a factory scan tool !

Aug 03, 2015 | 2006 Chevrolet Malibu

1 Answer

2000 suburban was stolen replaced ignition cylinder it turns over but no start


Do you have a security light lit or flashing on the Instrument cluster ?
The theft deterrent system has been incorporated into the body control module (BCM). The theft deterrent is provided in order to prevent the vehicle operation if the correct key is not used in order to start the vehicle. The ignition key turns the lock cylinder. The cylinder rotation produces an analog voltage code in the passlock?"¢ sensor. This voltage code is received by the BCM. The BCM compares the voltage code to the previousely learned voltage code. If the codes match, a class 2 message is sent from the BCM to the powertrain control module (PCM)/vehicle control module (VCM). The message enables the fuel injectors.
The design of the passlock?"¢ system is to prevent vehicle theft by disabling the engine unless the ignition lock cylinder rotates properly by engaging the correct ignition key. The system is similar in concept to the passkey system. However, the passlock?"¢ system eliminates the need for a key mounted resistor pellet. The components of the passlock?"¢ system are as follows:
?€¢
The ignition lock cylinder


?€¢
The ignition switch


?€¢
The passlock?"¢ sensor


?€¢
The Body control module (BCM)


?€¢
The security telltale


?€¢
The vehicle/powertrain control module (VCM/PCM)


The ignition lock cylinder is located at the upper right side of the steering column. The Passlock?"¢ sensor is in the steering column. The Passlock?"¢ sensor is separate from the key and lock cylinder. The key and the lock cylinder work together in order to determine if the proper ignition key was used to start the vehicle.
In the event of an open Class 2 serial data line between the BCM and the VCM/PCM, the vehicle will become fail-enabled if the VCM/PCM has already received the password from the BCM for that ignition cycle (the engine is running). In this event, the following conditions occur:
?€¢
The security telltale will be ON continuously.


?€¢
The VCM/PCM will become fail-enabled for future ignition cycles.

If a failure in the Class 2 serial data line occurs before the ignition cycle, when the VCM/PCM is not fail-enabled, the following conditions occur:
?€¢
The VCM/PCM will never receive a valid password in order to enable the fuel injectors.


?€¢
The vehicle will not start.


The lock cylinder and the visible key insert portion of the ignition switch are located at the upper right side of the steering column. The electrical switching portion of the assembly is separate from the key and lock cylinder. The electrical switch portion is hidden inside the steering column. The electrical switch portion and the key and lock cylinder synchronize and work in conjunction through the action of the mechanical assembly between the 2 parts.
Passlock?"¢ Sensor
The passlock?"¢ sensor is inside the upper right side of the steering column. The passlock?"¢ sensor contains 2 hall effect sensors. The tamper hall effect sensor is on the top. The security hall effect sensor is under the tamper hall effect sensor. Both of the hall effect sensors monitor the magnet of the lock cylinder through an opening. The tamper hall effect sensor is physically placed on top of the security hall effect sensor. This arrangement enables the tamper hall effect sensor to engage first if an intruder attempts to bypass the passlock?"¢ sensor by placing a large magnet around that area of the steering column. There is a tamper resistor inside the passlock?"¢ sensor in order to help prevent tamper to the system. Passlock?"¢ equipped vehicles have a selection of 10 different security resistors ranging from 0.5K ohms up to 13.6K ohms. Installing one of the security resistors inside the passlock?"¢ sensor will generate a unique passlock?"¢ code. All 10 combinations of the passlock?"¢ sensor have the same part number. However, you cannot simply replace the passlock?"¢ sensor and expect the system to operate properly. Always start by performing the Diagnostic System Check first and following the instructions.
SECURITY Telltale
The SECURITY telltale appears on the message center inside the instrument cluster. If the SECURITY telltale flashes or if the SECURITY telltale lights continuously during the vehicle operation, refer to the system diagnosis.
Fuel Lockout Cycle
The Passlock?"¢ system has a lockout cycle of approximately 10 minutes. Once the vehicle is in the lockout cycle, the vehicle remains in the lockout cycle for 10 minutes, even if the ignition switch is turned from the RUN position to the OFF position.
The Passlock?"¢ system uses the lockout cycle in order to synchronize all of the Passlock?"¢ components when any Passlock?"¢ related part is changed. The Passlock?"¢ system requires 3 consecutive lockout cycles in order to complete the 30 minute learn procedure for a changed component.

Mar 10, 2015 | Cars & Trucks

1 Answer

1995 Oldsmobile 88, when placing jumper wire on places 4 and 8, car does lock then unlock, but when turning key to on position car does not lock . Programming keyless entry. Failed over and over, ...


Did you start the car or just put it on ignition?
Do remember that there are 3 features in the ignition when turning the car key.
1. OFF
2. ON
3. Ignition
I recon that both ON and Ignition can be used in the dor system.

Feb 21, 2015 | Oldsmobile Cars & Trucks

1 Answer

Having trouble with keyless remote control on 1993 lexus es300. Replace battery on remote- still not openning doors. Help Please!


Try reporgraming it

1. Start with key out of ignition, drivers door is open all others closed and
drivers door is unlocked.

2. Insert key into the ignition (Do NOT Turn) and Pull key out.
3. Perform these steps within 40 seconds.
A. Using the power lock switch on the drivers door, perform 5 lock/unlock cycles
starting with lock. Use an even pace and try to go about one cycle per second.
(1Cycle = 1 lock and 1 unlock).
B. Close, then open drivers door.

4. Perform these steps within 40 seconds.
A. Using the power lock switch on the drivers door, perform 5 lock/unlock cycles
starting with lock. Use an even pace and try to go about one cycle per second.
(1Cycle = 1 lock and 1 unlock).
B. Insert the key in the ignition cylinder.
C. Turn the ignition to ON (Do NOT Start) then back to OFF.
D. Remove the key from the ignition.

5. Press any button on remote for a minimum of 1 second.
System should now lock and unlock doors once.

6. Close and open drivers door.

7. Press any button on remote for a minimum of 1 second. System should now lock and
unlock doors. Once to confirm programming, twice to indicate programming failed.

8. Repeat steps 5, 6 and 7 for additional remotes.

Jan 02, 2013 | Cars & Trucks

1 Answer

How to unluck security system of cadilac devlle 2001..my key wont get in to the ignition


Hello: It sounds like the tumblers have come loose in the ignition lock cylinder. You will have to replace the lock cylinder and possibly the key. (if the key is badly worn it could have caused the lock cylinder to fail.) Then you will have to program the system. There is NOT a Way to by pass the pass-key 3 system. Or UNLOCK IT........

Sep 02, 2011 | 2001 Cadillac DeVille

1 Answer

2003 gmc yukon died now the ignition is locked


Sometimes on GM vehicles, the anti theft system can fail. This causes the car to stall and can lock the ignition to prevent theft. If you see a light on the dash that says "security". Then this is your problem. Info and solutions on this site. http://vatspasslockpasskeysecurityhelp.yolasite.com/

Jun 15, 2011 | 2003 GMC Yukon XL

1 Answer

Replaced batery in key fob and now there is no connection between fob and security system...I can lock and unlock doors with the key and I can start car ...fob doesn't work; does not lock or unlock...


reprogram the remote transmitter. first leave driver door open all other doors closed,key removed from the ignition switch. insert key into the ignition switch,then remove it.press lock and unlock on the vechicle door lock control switch at 1 second intervals 5 times. close and repoen drivers door.press lock and unlock on the vechicle lock control switch at 1 second intervals 5 times. insert key into ignition switch. switch ignition on and off twice to program a remote transmitter code whilst erasing the original codes or three timre to check how many remote transmitters are currently registered.remove key from the ignition switch.system should now lock and unlock.twice to indicate programming mode or one to four times,slowly to indicate number of remote transmitters registered.for the solara press and hold lock and unlock remote buttons together, press lock remote button for a second period of 1 second. system should now lock and unlock vechicle.once to confirm, twice to indicate registration has failed.if required repeat button procedure to program remaining remote transmitters.note to exit programming mode close drivers door or insert ignition key.maximum of 4 remote transmitters can be programmed.if akk failed let dealership reprogram remote transmitters.

May 18, 2011 | 1999 Toyota Camry Solara

2 Answers

My 1999 tahoe has a security problem. The light comes on and goes off it will start.If the light flashes it fails to start. can you help


The pass lock is beginning to fail.You can try reporogramming it following this procedure. If it still continues to happen the pass lock/ignition tumbler may need replaced.
PASSKEY LOCKOUT RESET ALL GM CARS 1999 AND UP
1) Put the key in the ignition and turn to the "ON" position. Leave it that way for 10 minutes. After 10 minutes turn the key and take it out. Repeat this process (2) more times (3 times, 30 minutes total) This should reset the PASSKEY system to recognize your key
.

Sep 23, 2010 | 1999 Chevrolet Tahoe

1 Answer

The code says i am losing voltage to the transmission due to a failed inigtion switch. Are they talking about the key switch or some module if so were is it?


an "ignition switch" is generaly the switch which is activated by the key fob.

To Remove:
  1. Disable the SIR system by disconnecting the negative battery cable.
  2. Remove the left insulator panel and knee bolster from under the instrument panel (I/P).
  3. Remove the trim covers from the steering column.
  4. Release the ignition lock cylinder locking tab by inserting an allen wrench into the hole on the top of the ignition lock cylinder housing and pushing down.
  5. Remove the ignition lock cylinder from the ignition lock cylinder housing.
  6. Disconnect the passlock and key buzzer from the ignition lock cylinder housing.
  7. Release the ignition switch tabs by inserting a J 42759 ignition switch connector release tool into the ignition lock cylinder housing.
  8. Remove the ignition switch from the ignition lock cylinder housing.
  9. Disconnect the ignition switch connector. .
when you install the new one, just make sure the ign switch is in the same position as the old one was before assembly :)

May 20, 2010 | 2002 Chevrolet TrailBlazer

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