Dtc p0462 on 99 chevy s-10 4.3 L - 1998 Chevrolet S-10 Pickup

Yeah , take it to a qualified repair shop. You have a anti-theft system problem . Need to have code's pulled
DTC B2947
DTC B2948
DTC B2957
DTC B2958
DTC B2960
DTC B3031
DTC B3033
DTC P1626
DTC P1630
DTC P1631
DTC P1632

This will point to a diagnostic procedure .
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. If starting is attempted without authorization from the Passlock™ System, the powertrain control module (PCM) will disable engine starting. Start disable may be in the form of fuel disable or starter disable, depending on engine application.
The components of the Passlock™ System are as follows:
• The ignition lock cylinder and key
• The ignition lock cylinder case, including the Passlock™ sensor
• The ignition switch
• The body control module (BCM)
• The security indicator on the instrument cluster
• The powertrain control module (PCM)

Changing the Passlock™ Components
The following components contain codes or passwords, or must learn codes or passwords for the Passlock™ System to allow the vehicle to start:
• The ignition lock cylinder case
• The body control module (BCM)
• The powertrain control module (PCM)
If any of these parts are replaced, a learn procedure must be performed. Refer to Programming Theft Deterrent System Components . If parts are replaced and a learn procedure is not performed, the engine will crank and will not run or will start and stall immediately.

First you need to have EBCM - electronic brake control module check for DTC'S - diagnostic trouble code's . If the light is on there is a code stored . I think most part stores can do this and for free . After you find out what code is stored , looking up that code in service repair information for diagnostic trouble shooting chart would be next step . There are a few codes too.
DTC C0035 or C0040
DTC C0045 or C0050
DTC C0110
DTC C0131
DTC C0161
DTC C0186
DTC C0196
DTC C0201
DTC C0240
DTC C0241 or P0856
DTC C0244 or P1689
DTC C0245
DTC C0283
DTC C0287
DTC C0290 or C0292
DTC C0455
DTC C0550
DTC C0558

Find the code do the diagnostic's , fix the problem , wiring issue's , a sensor , bad module ,what ever it is . The light will go out then . Here is a sample of code discription .
• DTC C0035 Left Front Wheel Speed Sensor Circuit
• DTC C0040 Right Front Wheel Speed Sensor Circuit

code p0014 - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

forums.trailvoy.com > ... > OEM Issues

Sep 8, 2007 - 11 posts - ‎8 authors
On my Trailblazer I have a code P0014 . this says Camshaft Position Actuator B ... If the desired and actual cam phase angle error exceeds its ... This diagnostic procedure supports the following DTC: ... replace the camshaft actuator solenoid, change the engine oil and filter, ... 2004 Chevy TrailBlazer LT P0014 - Camshaft Position Actuator Solenoid "Relearn"
11 posts
Dec 11, 2009
cam crank sensor mismatch
11 posts
Jul 4, 2009
More results from forums.trailvoy.com

Tech Code "dtc P0014" 2003 Trailblazer - Chevy S-10/Blazer ...

www.gm-trucks.com/.../72278-tech-code-dtc-p0014-2003-trailblazer/

Dec 31, 2007 - 14 posts - ‎6 authors
Tech Code "dtc P0014" 2003 Trailblazer - posted in Chevy ... it had been serviced before for the same thing in 2003 or 2004! ... replace the camshaft actuator solenoid, change the engine oil and .... The extended war. co. prob. would not be to happy since they already fixed the sensor once or twice already.

Replace a Camshaft Position Actuator Solenoid Valve on a ...

? 8:05
https://www.youtube.com/watch?v=4Dkdd287AKg

It needs a service.

There is no reset , if security light is lit there is a problem with the anti-theft system .Should have it checked for DTC'S - diagnostic trouble codes . Could have 8 different B - codes
DTC B0685 DTC B2955 DTC B2960 DTC B3031 DTC B3033 DTC P1626 DTC P1630 DTC P1631
You would need a professional type scan tool to read these type codes , not an OBD 2 code reader .

I have a 2003 S10 and the downstream O2 sensor failed giving the same code. My son
was able to diagnose it with a very expensive scantool. The downstream sensor is
located at the Y in the exhaust pipe. Sure beats buying all 3 sensors. Hope this helps.
(I recommend getting the OEM sensor).

Feb 7/11 - P0405

Jan 11/11 - P0336 - P0326

Dec 28/10 - P0217 - P0218 - P0163 - P0230 - P0231 - P0232

Dec 9/10 - Trouble Codes: P0170 - P0173 - P0162 - P0154 - P0142

Dec 6/10 - More DTC articles: P0157 - P0158 - P0160 - P0200

Nov 30/10 - DTC articles posted: P0505 - P0156

Nov 18/10 - More new articles: P0143 - P0144 - P0146 - P0147 - P0152

Nov 12/10 - P0120 - Throttle Position Sensor/Switch A Circuit Malfunction

Nov 11/10 - ECT Circuit Codes: P0116 - P0117

Nov 10/10 - P0111 - IAT Circuit Range/Performance Problem

Nov 7/10 - P0110 - Intake Air Temperature Circuit Malfunction

Nov 6/10 - P0108 - Manifold Absolute Pressure/Barometric Pressure Circuit High Input

Oct 21/10 - P0216 Injection Timing Control Circuit Malfunction

Sept 11/10 - Knock Sensor DTCs: P0327 P0332

Mar 15/10 - P0607 Control Module Performance Code

Mar 4/10 - P0606 PCM Processor Fault DTC

Feb 10/10 - New ECT Sensor article

Feb 9/10 - P0012 & P0022 - Camshaft Position - Timing Over-Retarded

Feb 2/10 - P0115 - Engine Coolant Temperature Circuit Malfunction DTC

Jan 19/10 - P0105 - MAP/Barometric Pressure Circuit Malfunction

DTC Number
P0160 DTC Name O2 Sensor Circuit No Activity Detected Bank 2 Sensor DTC Number P0300 DTC Name Random/Multiple Cylinder Misfire Detected

See attached response from another of our experts to another of same question.

http://www.fixya.com/cars/t3127365-z_flow_diagnostics_obdii_code_1336

keep in mind, PO 420 may be a plugged catalytic converter, but I'd check into other problem first.

1999 chevy 2500 ??? Come on a warranty , get real . Did you have the 4X4 system checked for DTC'S - diagnostic trouble code's ? Can set a few .
DTC B2725 ATC Mode Switch Circuit Malfunction
DTC C0300 Rear Speed Sensor Malfunction
DTC C0305 Front Speed Sensor Malfunction
DTC C0308 Motor A/B Circuit Low
DTC C0309 Motor A/B Circuit High
DTC C0310 Motor A/B Circuit Open
DTC C0315 Motor Ground Circuit Open
DTC C0323 T-Case Lock Circuit Low
DTC C0324 T-Case Lock Circuit High
DTC C0327 Encoder Circuit Malfunction
DTC C0367 Front Axle Control Circuit High
DTC C0374 General System Malfunction
DTC C0376 Front/Rear Shaft Speed Mismatch
DTC C0387 Unable to Perform Shift
DTC C0550 ECU Malfunction
DTC C0611 VIN Information Error

The range/mode switch circuit consists of four normally open switches. The automatic transfer case control module supplies a regulated 8 volt DC to the switch through circuit 431. The switch has circuit 1693 to return current to the automatic transfer case control module through a 9.09K ohms resistor located inside the switch.
The transfer case shift control module constantly monitors this signal voltage to determine the condition of the mode switch circuit. If no buttons are pressed, and the transfer case shift control module detects a voltage level outside the possible range (approx.-0.5 to 1.0 volts) for longer than 5 minutes, the transfer case shift control module will set this DTC or if a button is held down or sticks for a period longer than 5 minutes.
When each of the switches is depressed they will complete a circuit through their own specific resistor. The transfer case shift control module continuously monitors the switch input to determine whether the 4HI, AUTO 4WD, 2HI, and 4LO button selections are made by the driver. Neutral may be obtained if the following conditions are met:
• The engine is running.
• The automatic transmission is in neutral (or the clutch pedal is depressed on a manual transmission application).
• The vehicle speed is below 3 MPH.
• The transfer case is in the 2HI mode.
Once these conditions have been met, pressing and holding both the 2HI and 4LO buttons for 10 seconds will shift the transfer case into neutral, turning on the red neutral indicator lamp.
If you are not familiar with these electronic systems ,I suggest you take your vehicle to a qualified repair center .