Question about 1992 Chrysler New Yorker

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The engine wont start and the tamper alert system keeps interferring when it's on. What can I do to fix this problem? We believe it may be the fuel line stopped up, but I want to keep more options open to other possibilities.

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Could you explain more? I know mine did that. If you set the alarm off or unhook and reconnect the battery it will disable the computer and the car will not start. Try reconnecting the battery. That will set the alarm off then insert the key into the drivers door and turn it to disable. It could also be problem with the alarm system. Sorry if
Im misunderstanding.

Posted on May 09, 2011

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2006 chevy colorado fuel system diagram I need help diagnosing the problem of the gas smell coming from my truck. No leaks...but a very strong gasoline smell...please help me out!


The Chilton/Haynes repair manual we got for our 2004 Trailblazer has a fuel diagram. So I believe the same type manual for your Colorado should be no different as to information. Did find in research that there are plastic parts on the fuel lines that run under the air intake. Over time they become brittle due to engine heat since they are on top of engine but under the plastic air tube and are prone to leak over time. Not hard to fix, just a pain to remove the interfering parts.

Aug 26, 2016 | 2006 Chevrolet Colorado

1 Answer

Why does the anti-theft light stay on?


There is a problem with the system an there is a DTC - diagnostic trouble code stored in the body control module !
The vehicle theft deterrent system is designed in order to prevent vehicle theft by disabling the fuel injectors unless the lock cylinder is engaged by the correct mechanical key. The theft deterrent system uses the following 4 components for theft prevention:
?€¢
The lock cylinder


?€¢
The ignition switch


?€¢
The body control module (BCM)


?€¢
The powertrain control module (PCM)

When starting the engine, the PCM searches for a password from the BCM through the Class 2 serial data circuit. If the password is not recognized or not present, the PCM will disable the fuel injectors. Two modes of tamper detection are provided:
?€¢
No password received


The engine will start and stall quickly. SECURITY telltale will flash on the instrument panel cluster (IPC) and then stay ON steady.


?€¢
Incorrect or disable password received (More than 3 invalid passwords are received)


The engine is disabled for at least 10 minutes and the SECURITY telltale will illuminate solid on the IPC during the 10 minutes.

After the vehicle has passed theft detection, the PCM will continue normal operation
Ignition Switch
The mechanical key and lock cylinder is located on the steering column. The main electrical switching portion of the assembly is separate from the key and lock cylinder. The VTD portion of the ignition switch is the Passlock?"¢ cylinder.
The Passlock?"¢ lock cylinder is a locking cylinder that turns a magnet past a stationary hall effect sensor. When turned to crank, the hall effect sensor is latched which applies a fixed resistance to the Passlock?"¢ signal data circuit. The voltage measured by the BCM on the Passlock?"¢ signal data circuit is the Passlock?"¢ data value.
Body Control Module (BCM)
The BCM compares the Passlock?"¢ data value to a value that it has stored in memory. If the values match the BCM sends a password via the class 2 serial data line to the PCM.
Powertrain Control Module (PCM)
When the PCM receives the correct password, the PCM enables the fuel injection system, allowing the vehicle to operate correctly. The PCM may allow the car to start and quickly stall during a failed theft condition.
If the BCM does not receive a Passlock?"¢ data value, the BCM will enter a short tamper mode. During this mode, the VTD system will not allow the car to operate for 4 seconds.
If the Passlock?"¢ data value is incorrect, the VTD system will enter the long tamper mode. In the long tamper mode, the following actions will occur:
?€¢
The THEFT SYSTEM indicator will flash.


?€¢
The fuel injectors will be shut off for approximately 10 minutes.

Although the vehicle may start, the engine will quickly stall due to a fuel cut-off.
In the event of an open in the serial data communication between the BCM and the PCM or a failure in the Passlock?"¢ lock cylinder, the following actions occur:
?€¢
The VTD system will become fail-enabled if the car has already passed theft for that ignition cycle (i.e. the engine is running).


?€¢
The PCM or the BCM may set diagnostic trouble codes (DTCs).


?€¢
The THEFT SYSTEM indicator will light continuously.


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

If a failure occurs when the ignition is off, while the VTD system is not fail-enabled, the PCM will never receive a valid password, and will not allow vehicle operation by disabling the fuel injectors. An this system can set 6 DTC'S
DTC B2947 Security System Sensor Power CKT Low DTC B2948 Security System Sensor Power CKT High DTC B2957 Security System Sensor Data Circuit Low DTC B2958 Security System Sensor Data Circuit High DTC B2960 Sec Sys Sensor Data Incorrect but Valid DTC B3031 Security System Controller in Learn Mode DTC B3033 Security System Indicates Tamper

May 21, 2015 | 2000 Chevrolet Cavalier

1 Answer

Xlt lariat


I would check the fuel pressure regulator. If you pull the vacuum line off the regulator (truck not running) and fuel comes out of the line, the regulator is bad. The other answer would be that you may have enough fuel pressure to start the truck but it may not be strong enough to keep it running. I'd suggest doing a pressure test on the fuel system. If this is a gas engine and not diesel, I believe the pressure should be around 50 psi.

Oct 29, 2013 | Ford F-350 Cars & Trucks

2 Answers

My trail blazer 2006 wont start and it has a light on of a car with a lock what does this mean heeelp please as soon as possible emergency


You have now experienced GM's terrible anti theft security system. These systems are known for failing and will cost you an arm and a leg to fix. Anywhere from $350 - $700 plus labor. Most mechanics wont even touch these "PASSkey" security systems.You'll have to go to a Dealer mechanic. The good news is that you can bypass these systems permanently. And you're vehicle is one of these lucky ones that CAN be bypassed. This link should help you find what you need and help inform you of how this system works.

http://vatspasslockpasskeysecurityhelp.yolasite.com/ TRAILBLAZER 2002 2003 2004 2005 2006 2007 2008 Effected by Passlock/PASSkey Failure. tayjoejoe_17.jpg

Jul 11, 2011 | 2006 Chevrolet Trailblazer

1 Answer

Message centre error of a car with a lock through it, and the car wont start. What is wrong?


The car is in tamper mode. Leave the key in the ON position for 10-20 minutes to reset and retry. I would take it to the dealer to have the Passlock system inspected as soon as possible to make sure it does not happen again.
The car will go into tamper mode when it detects an unauthorized engine start attempt (such as a hot wire). It may also go into tamper mode if there is a Passlock malfunction inside the ignition cylinder.

Mar 04, 2011 | 2003 Chevrolet Monte Carlo

1 Answer

2000 Alero - Internal Security system malfunctioning. Sometimes (randomly) when I try to start the car it will not start and the red "security:" light flashes. I have to wait 10 minutes while the key is in...


The vehicle theft deterrent system is designed in order to prevent vehicle theft by disabling the fuel injectors unless the lock cylinder is correctly engaged by a mechanical key. The theft deterrent system uses the following 4 components for theft prevention:
• The lock cylinder
• The ignition switch
• The body control module (BCM)
• The powertrain control module (PCM)
When starting the engine, the PCM searches for a password from the BCM through the Class 2 serial data circuit. If the password is not recognized or not present, the PCM will disable the engine. Two modes of tamper detection are provided:
No password received
The engine will start and stall quickly. SECURITY telltale will flash on the instrument panel cluster (IPC) and then stay ON steady.
Incorrect or disable password received (More than 3 invalid passwords are received)
The engine is disabled for at least 10 minutes and the SECURITY telltale will illuminate solid on the IPC during the 10 minutes.
After the vehicle has passed theft detection, the PCM will continue normal operation.

Passlock™ Lock Cylinder
The Passlock™ lock cylinder is a locking cylinder that turns a rotating magnet past a stationary hall effect sensor. This action creates the Passlock™ cylinder data. The Passlock™ cylinder data is sent to the Body Control Module (BCM). The Passlock™ lock cylinder is interfaced with the BCM via a 3-wire connection:
• Power
• Ground
• Data

Powertrain Control Module (PCM)
The Powertrain Control Module (PCM) is located on the lower left side of the instrument panel.
The PCM communicates with the Body Control Module (BCM) via serial data over the class 2 serial data bus, CKT 1807. When the BCM determines a passed theft condition, the BCM sends a coded password to the PCM. When the PCM receives the correct password, the PCM enables the fuel injection system, allowing the vehicle to operate correctly. The PCM may allow the car to start and quickly stall during a failed theft condition.
The following conditions may cause the PCM to enter a tamper mode:
• A bad timing cycle
• An incorrect password
If the BCM does not receive a password within a preset time window, the BCM will enter a short tamper mode. During this mode, the PCM will not allow the car to operate for 4 seconds.
If the password is incorrect, the PCM will enter the long tamper mode. In the long tamper mode, the following actions will occur:
• The THEFT SYSTEM indicator will flash.
• The fuel injectors will be shut off for approximately 10 minutes.
Although the vehicle may start, the engine will quickly stall due to a fuel cut-off.
In the event of an open in the serial data communication between the BCM and the PCM, the following actions occur:
• The PCM will become fail-enabled if the car has already passed theft for that ignition cycle (i.e. the engine is running).
• The PCM may set the diagnostic trouble codes (DTC).
• The THEFT SYSTEM indicator will light continuously.
• The PCM will become fail-enabled for future ignition cycles.
If a failure occurs in serial data before the ignition cycle, while the PCM is not fail-enabled, the PCM will never receive a valid password in order to enable the continued use of the fuel injectors.

Your best bet , take to a qualified repair shop .
DTC B2947 Security System Sensor Power CKT Low
DTC B2948 Security System Sensor Power CKT High
DTC B2957 Security System Sensor Data Circuit Low
DTC B2958 Security System Sensor Data Circuit High
DTC B2960 Sec Sys Sensor Data Incorrect but Valid
DTC B3031 Security System Controller in Learn Mode
DTC B3033 Security System Indicates Tamper

Aug 12, 2017 | 2002 Oldsmobile Alero

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99 grand cherokee laredo wont start but turns over


Check power to the ignition coil,,you may have interfered with one of the wires going to the coil

Jan 16, 2009 | 1999 Jeep Grand Cherokee

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Bottom wheel of water pump wont turn, burning belt


The wheel could be stuck but you need to have the water drained out and a mixture of antifreeze to water added to it. Be sure to keep in mind the heater core also has fluid in it and you could damage that also.

Nov 24, 2008 | 1996 Dodge Intrepid

1 Answer

SRS


SRS stand for Supplymentary Restraint System, The purpose of the SRS light on your instrument panel is to alert you of a potential problem with your supplemental restraint system. It should blink seven times when you turn the ignition switch to ON or START and go OFF. A possible fault in the system can lead to any of the following: (a) The light does not come on when you turn the ignition ON. (b) The light stays on after the engine starts. (c) The light comes on while you are driving. Apart from the conventional causes of these faults (faulty airbag system), majority of the light indicator problem has been attributed to ignorance while fixing or repairing mechanical and/or wiring systems within the vehicle. If the SRS indicator light alerts you to a problem, have the supplemental restraint system inspected as soon as possible. If you ignore this indication, the airbags might not inflate when you need them. Likely Causes:
  • Steering wheel modifications
  • Faulty driver/passenger seat sensors for your airbag system (located under the seats)
  • Faulty seat belt mechanism
  • Tampered system components or wiring (e.g battery jumpering)
* Sometimes, a little adjustment of your seat belts and/or seat positions might fix the indicator problem over time (if the sensors are not faulty).
Precautions:
  • Do not modify your steering wheel or any other part of the supplemental restraint system. Modifications could make the system ineffective.
  • Do not tamper with the system's components or wiring. This could cause the airbags to inflate inadvertently, possibly injuring someone very seriously.
  • Tell anyone who works on your vehicle that you have a supplemental restraint system. Failure to follow the procedures and precautions in the official service manual could result in personal injury or damage to the system.
  • If all sensors are ok, the system can be reset using appropriate tools; refer to specially trained technicians.
Cheers Fred Omorogbe (reference: https://techinfo.honda.com/rjanisis/pubs/om/PA9696/PA9696A00015A.pdf)

Sep 08, 2008 | 2001 Mercedes-Benz E-Class

1 Answer

1994 gmc safari


Sounds like your Passlock security system went into the tamper mode. If your dashboard security light blinks when the ignition is turned on, your Passlock security system is disabling the injector module, preventing the car from start. Try this:
1- turn the ignition on and just touch the starter, without getting the motor to fire, then leave the ignition in the "on" position. The security light will blink for about 10 minutes. When the light stops blinking, turn the ignition off and leave off for 3 minutes.
2-repeat the step #1, 3 or 4 times. You will know that is fixed when you turn the ignition on and the security light does not blink, then the car will start. Make sure to stay inside the car when you're doing this, as opening the doors will trip the security tamper mode on again. Once the tamper mode is off, the car starts and opening the doors will not trip the Passlock tamper mode.

Aug 06, 2008 | 1994 GMC Safari

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