Question about 1993 Chevrolet K1500

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I have a code 58 anti-theft system fuel enable circuit on a 1993 chevy pick up i need to know what this is exactly and how to fix it?

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If the truck will not run
then put the key in trun truck on do not start wait 10 to 20 min. then trun keyy off and try to start.it will reset itself

Posted on Aug 29, 2010

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Posted on Jan 02, 2017

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P1626 , what’s the solution


Error Code P1626: Theft Deterrent Fuel Enable Signal Not Received

https://autoservicecosts.com/obd2-codes/p1626/
The VTD (Vehicle Theft Deterrent) system is included in the vehicle's BCM (Body Control Module). ... If the PCM detects a loss of state of the signal while the engine is running, then the Error Code P1626 will be set. ... Having this condition, the PCM will inhibit fuel delivery, disable ...

Crank no-start P1626: GM 4.3 Chevy Astro - YouTube

? 21:41
https://www.youtube.com/watch?v=RjKblM4VH9E Feb 2, 2016 - Uploaded by Pine Hollow Auto Diagnostics
This 2003 Chevy Astro has an intermittent crank no-start, or a start-run-stall symptom, with a P1626 "Start ...

P1626 Chevrolet Theft Deterrent Fuel Enable Signal Not Received

https://www.engine-codes.com/p1626_chevrolet.html Possible Causes and Repair Information for P1626 Chevrolet code. Learn what does P1626 Chevrolet means? P1626 Chevrolet Theft Deterrent Fuel Enable Signal Not Received.

DTC P1626 Theft Deterrent Fuel Enable Signal Lost - LS2.com

https://www.ls2.com/boggs/dtcs/DTC%20P1626.htm The GAGE fuse open casues DTC P1626 to set. Refer to Wiring Repairs In Wiring Systems. If the engine starts and then stalls, the Body Control Module is not suppling the appropriate signal or the theft deterrent fuel enable circuit is open, shorted to a ground, or shorted to a voltage. Using the Freeze Frame and/or Failure ...

P1626-Theft Deterrent Fuel Enable Signal Not Received? - 3800Pro ...

www.3800pro.com > ... > Engine > DTC's, Problems & Troubleshooting Feb 24, 2006 - DTC P1626 Theft Deterrent Fuel Enable Signal Lost Circuit Description The Vehicle Theft Deterrent (VTD) system is incorporated within the body control module (BCM). The powertrain control module ( PCM ) monitors the state of health serial data message from the Theft Deterrent system to ensure that the ...

Apr 07, 2018 | Cars & Trucks

1 Answer

I have a passkey 3 on my 2002 cadillac deville and the security system is not letting my car start or crank does anyone know how to fix this problem i'm having without me having to take it to a dealer


You need a capable scan tool to check DTC'S - diagnostic trouble code's .
DTC B2734
DTC B2960
DTC B3031
DTC B3055
DTC P1630
DTC P1631

These would tell why the PCM - engine computer isn't starting the vehicle . There is no by-pass for this anti-theft system . The Dealer is your only hope . Nothing you can do !
The theft deterrent control module produces the theft deterrent fuel and starter enable signal when ignition is ON and the proper transponder key value is detected. The powertrain control module (PCM) monitors the fuel and starter enable signal during crank. If the proper signal is present on the Class 2 Serial Data Circuit, the PCM enables the fuel delivery and starter operation in order to allow the engine to start. If the PCM detects an incorrect password, vehicle theft deterrent (VTD) system failure or attempted vehicle theft, DTC P1631 is set. The engine will not start or crank as long as the condition is present.

Sep 20, 2017 | Cadillac Cars & Trucks

2 Answers

How do I reset the ProLock system?


Hi Carol , do you mean PATS passive antitheft system ? Locked up your car ,do you mean it won't crank over an start ?
The passive anti-theft system uses radio frequency identification technology to deter a driveaway theft. Passive means that it does not require any activity from the user.
  • During each vehicle start sequence, the ignition key identification code is requested by the vehicle protection anti-theft electronics.
  • If the key's ID code has been programmed into the system, the powertrain control module (PCM) (12A650) is signaled to enable the vehicle to start.
  • If the key's ID code is not programmed into the system, or if no encoded key is detected, then the powertrain control module is signaled to disable the vehicle.
The passive anti-theft system communicates the state of the security system to the powertrain control module via the J-1850 communications network data link connector (DLC). The powertrain control modulebased on the communications from the passive anti-theft system, will determine if the vehicle's engine is enabled to start. The passive anti-theft system differs from the active anti-theft alarm system in that the passive anti-theft system enables/disables the vehicle from starting and only operates with the ignition switch in RUN/START position. The active anti-theft alarm system has perimeter protection capabilities and operates only with the ignition switch OFF. Refer to Section 13-11A for active anti-theft alarm system information.
Vehicle Disabling The passive anti-theft system will be activated and disable the vehicle from starting if any of the following conditions exist:
  • damaged encoded key
  • unprogrammed key
  • non-encoded key (key has no electronics)
  • wiring concern
  • transceiver concern
  • Passive Anti-Theft System (PATS) control module concern
  • J-1850 Communications Network concern
  • Powertrain Control Module (PCM)

Apr 15, 2015 | 1995 Ford Taurus

1 Answer

I need to get passed the anti theft reset to get my 2000 cad.devlle.going, just bought it, I need help to locate fuse boxes, would like to trade somebody for a sharp running truck or car straight across,...


One is under the hood in the engine compartment an Rear Fuse Block
Left rear of the passenger compartment, under the rear seat ! There are a couple of fuse's , but they power up the ignition an the PCM ,so you can't pull those ! Beside that if the PCM does not get a fuel enable signal from the anti-theft module the vehicle won't start . You can't just disable thing's on this vehicle ! If you have security light on steady or flashing you need to take it to someone who has a diagnostic scan tool that can check DTC'S - diagnostic trouble codes ! A code reader can not access these type codes !
Vehicle Theft Deterrent (VTD)Circuit Description
(VTD) Theft Deterrent System Components
Ignition Key (Transponder) The ignition key for the (VTD) theft deterrent system is a typical ignition key with a transponder pellet located in the plastic end of the key. The ignition key transponder value is used to determine if a valid ignition key is being used to start the vehicle, there are approximately three trillion different transponder values available. This vehicle has two types of ignition keys.
?€¢
Master key (black plastic end) which can start the vehicle and lock/unlock all door locks, all storage compartments and the rear compartment lid lock.


?€¢
Valet key (gray plastic end) which can start the vehicle and unlock/lock all doors, but can not unlock/lock the storage compartments, or rear compartment lid lock.

Important: The transponder values are not readable and can not be serviced separately.
Theft Deterrent Module The theft deterrent module contains the software for controlling the VTD System. The theft deterrent module uses the following inputs and outputs to control the VTD system.
Inputs ?€¢
Battery voltage from the underhood fuse block PCM/BATT fuse, circuit 240 (ORN).


?€¢
Ignition start voltage from the ignition switch, circuit 1390 (WHT).


?€¢
Ground, circuit 450 (BLK).
Outputs Password exchange with the PCM (fuel enable), class 2 message circuit 1807 (PPL).
Powertrain Control Module (PCM) The PCM verifies that the passwords received from the theft deterrent module via the class 2 serial data line are valid. If a password is invalid the PCM disables the fuel delivery system. If the password is valid the PCM enables the fuel delivery system.
Starter Relay The starter relay is controlled by the PCM module via class 2 serial data (CKT 1807 PPL). If the theft deterrent module measures the correct transponder value, the PCM module switches the starter enable control (CKT 447 YEL) to ground. The relay is energized if the ignition switch is in the START position and the gear selector is in the PARK or NEUTRAL positions.

Mar 24, 2015 | Cars & Trucks

1 Answer

2002cheveymonte Carlo diagnostic code 1626 what can i do to fix this


P1626 is anti theft system fuel enable circuit (passkey error)
change passkey ignition module

Sep 24, 2013 | Chevrolet Monte Carlo Cars & Trucks

1 Answer

My 05 Chevy 2500HD 6.0L won't start. I replaced the fuel pump before i realized the security light was on. I understand this to be an anti theft system. How can i dactivate it so my truck will start? I...


Do you have a second key ?
Passlock™ System
The theft deterrent system has been incorporated into the body control module (BCM). The theft deterrent is provided in order to prevent 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 previously 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 PASS-Key® 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 BCM
• The security telltale
• The VCM/PCM

Your best bet , take it to a qualified repair shop . Security light on - DTC'S - diagnostic trouble codes are stored . Having codes check would point in a diagnostic procedure to fix the issue .

DTC B2947
DTC B2948
DTC B2957
DTC B2958
DTC B2960
DTC B3031
DTC B3033
DTC P1626
DTC P1631
Circuit Description
The Passlock™ system is provided in order to prevent vehicle theft if the ignition lock cylinder is forced to rotate or the ignition switch is operated while separated from the ignition lock cylinder case. The body control module (BCM) provides security system sensor power and low reference for the Passlock™ sensor. The BCM also measures the security system sensor voltage.
When the correct key is used to start the vehicle, a magnet on the lock cylinder passes close to the Passlock™ sensor within the ignition lock cylinder case. The magnet activates the security hall effect sensor in the Passlock™ sensor which completes a circuit from the security sensor signal circuit through a resistor to the security sensor low reference circuit. The resistance value will vary from vehicle to vehicle. The BCM will measure the voltage on the security sensor signal circuit and compare this voltage to a previously learned voltage. If the voltage measured is within the valid range, the BCM will send a class 2 message to the powertrain control module (PCM) to enable vehicle starting. If the voltage measured is not within the valid range, a class 2 message will be sent to the PCM to disable starting of the vehicle.

Jan 31, 2018 | 1997 Chevrolet C2500

1 Answer

2002 chevy malibu...can i get a remote starter to by pass the anti theft system


What makes you think this is a anti-theft system problem ? Is the security light lit on the insturment cluster ? When you turn the key to start does the starter spin the engine ? Crank no start ! Or when you turn the key to the start position the starter does nothing . No crank no start . A aftermarket remote start won't by pass anti-theft system . Your best bet would be to take to a qualified repair shop and have it checked for DTC'S - diagnostic trouble codes . Before you let someone start hacking up wiring circuits .
DTC B2947
DTC B2948
DTC B2957
DTC B2958
DTC B2960
DTC B3031
DTC B3033
DTC P1626
DTC P1630
DTC P1631
DTC P1632

Do you know what DTC'S are , these would point to an area of trouble an to a fix .

Aug 21, 2017 | Cars & Trucks

1 Answer

2000 chevy venture key jammed ignition replaced ignition car wont turn over. OBD-II codes U1000, P0463, P1626. How do I fix problem


Code U1000 is saying the ECM lost communication with the BCM which can happen when the key switch is turned far enough to stop the engine but not enough to turn the accessories off.
Code 463 is for fuel level sensor circuit high which is a problem with the fuel gauge or the sending unit in the tank.

Code 1626 involves the theft deterrent system.
P1626 CHEVROLET - Theft Deterrent Fuel Enable Signal Not Received
Read more: http://engine-codes.com/p1626_chevrolet.html#ixzz210PRFRO9

The code 1626 could be the issue - the passkey system may not be reading the chip in your key.

Jul 18, 2012 | 2000 Chevrolet Venture

1 Answer

2000 chevy s10 wont keep running many scan codes


Your truck has an antitheft system called passlock. It runs thru you bcm. When this system fails, your truck will start for 1-5 seconds and then stall. The fuel enable is switched off, and injectors fail to squirt. This may be your problem and is a "bypassable" problem. This link explains.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

May 17, 2012 | Cars & Trucks

2 Answers

My theft light is flashing but my 1997 expedition wont start.The vehicle turns over but just don't start.


ANTI-THEFT SYSTEM Passive anti-theft system
Your ignition key has a unique imbedded transponder which engages engine electronics and allows the vehicle to be started. Without the use of your special ignition key, the vehicle will not start.

During each vehicle start, the coded key is read by the anti-theft system. If the key’s ID code matches the code in the anti-theft system, the vehicle is enabled to start.

Anti-theft system
Briefly illuminates when the ignition is turned to the ON position to verify that the passive anti-theft system is operating properly.

Also, its possisble that tou have actovated the fuel pump switch.

CHeck it.

Jul 20, 2010 | 1998 Ford Expedition

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