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THIS TV IS DEAD ALL VOLTAGE OK 5 VOLT ALSO B+ still not starting

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Hi,
Need your tv model number and brand info to determine what tv we are looking in.
Thanks.

Posted on May 08, 2010

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Posted on Jan 02, 2017

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03 chevy impala how to fix pocode 1635 is this the computer are what is it


DTC P1635
The powertrain control module (PCM) provides 5 volts to the following sensors:
?€¢
The manifold absolute pressure (MAP) sensor


?€¢
The exhaust gas recirculation (EGR) valve


?€¢
The fuel tank pressure (FTP) sensor


?€¢
The throttle position (TP) sensor

These 5-volt reference circuits are independent of each other outside the PCM, but are bussed together inside the PCM. Therefore a circuit condition on one sensor 5-volt reference circuit may affect the other sensor 5-volt reference circuits. The PCM monitors the voltage on the 5-volt reference circuit. If the PCM detects that the voltage is out of tolerance, DTC P1635 sets.
Diagnostic Aids
?€¢
If any sensor using a 5-volt bias voltage, such as the intake air temperature (IAT) sensor or fuel sensor, is shorted to voltage, DTC P1639 may set in addition to DTC P1635.


?€¢
For an intermittent condition, refer to Intermittent Conditions .


Does the vehicle start an run ?

Jun 11, 2015 | 2003 Chevrolet Impala

1 Answer

Any one savvy with cars please help me. I have a 1996 ford taurus gl it was running fine until today. I thought it was low on gas so I added more along with motor oil because mine was low now it won't...


I would say that the battery is flat or old and wont hold a charge, or the terminals are dirty. probe the terminals with a volt meter around 12 volts ok ,if little or no voltage probe battery posts 12 volts ok , if voltage ok now terminals dirty, if no voltage battery flat or dead.

Oct 16, 2014 | Cars & Trucks

1 Answer

Chevy colorado


Hi there:

DTC P0641 - 5-Volt Reference 1 Circuit

DTC P0651 - 5-Volt Reference 2 Circuit

Diagnostic Fault Information
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

Circuit/System Description
The engine control module (ECM) has 2 internal 5-volt reference busses called 5-volt reference 1 and 5-volt reference 2. Each reference bus provides 5-volt reference circuits for more than one sensor. Therefore, a fault condition on one 5-volt reference circuit will affect the other 5-volt reference circuits connected to that reference bus. The ECM monitors the voltage on the 5-volt reference busses.

The 5-volt reference 1 bus provides 5 volts to the following sensors:
* The manifold absolute pressure (MAP) sensor
* The fuel tank pressure (FTP) sensor
* The air conditioning (A/C) refrigerant pressure sensor
* The accelerator pedal position (APP) sensor 2
* The intake camshaft position (CMP) sensor

The 5-volt reference 2 bus provides 5 volts to the following sensors:
* The APP sensor 1
* The throttle position (TP) sensor 1 and 2
* The crankshaft position (CKP) sensor

Conditions for Running the DTC
* DTCs P0601, P0602, P0603, P0604, P0605, P0606, P0607, and P2610 are not set.
* The ignition is in Unlock, Accessory, Run, or Crank.
* The ignition voltage is more than 5.23 volts.
* DTCs P0641 and P0651 run continuously when the above conditions are met.

Conditions for Setting the DTC
The ECM detects a voltage out of tolerance condition on the 5-volt reference 1 or 2 bus for more than 0.5 second.

Action Taken When the DTC Sets
DTCs P0641 and P0651 are Type A DTCs.

Conditions for Clearing the MIL/DTC
DTCs P0641 and P0651 are Type A DTCs.

Diagnostic Aids
It may be possible to locate the fault by disconnecting one component at a time from the 5-volt reference circuit while viewing the 5-Volt Reference circuit parameter on the scan tool. The scan tool parameter would change from Fault to OK when the source of the fault is disconnected.

If all 5-volt reference components have been disconnected and a Fault is still indicated, the fault may exist in the wiring harness.

Circuit/System Verification
With the ignition ON and the engine OFF, observe the 5-volt Reference 1 and 2 parameters. The scan tool should display 4.3-4.7 volts for a normally operating system.

Circuit/System Testing
Important: Additional DTCs will set when disconnecting the components.

1. Ignition OFF, disconnect the harness connector of all appropriate sensors for the applicable DTC.

Important: A short to voltage on the signal circuit of certain components may cause this DTC to set.

2. Ignition ON, measure for 4.8-5.2 volts between one of the 5-volt reference circuits and ground.

* If the voltage is less than the specified value, test for a short to ground on all the 5-volt reference circuits. If all circuits test normal, replace the control module.
* If the voltage is greater than the specified value, test for a short to voltage on all the 5-volt reference circuits, or the signal circuit, for each component associated with the appropriate 5-volt reference circuit. If all circuits test normal, replace the control module.

3. Connect each component associated with the 5-volt reference circuit, one at a time, while monitoring the voltage. The voltage should not change more than 1 volt.

* If the voltage display changes more than the specified value when a component is connected, replace the component.


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Jul 12, 2012 | Chevrolet Colorado Cars & Trucks

1 Answer

The power on my grand daughter's cavalier went out and she said it will not start now. how do i check the battery first.


If you have a voltmeter you can taety the battery voltage at the terninals. Harbor Freight selld volt meters for less than 5 dolars.

You can take the battery to Autozone and they will yest it for free. They may need to chatge it first.

If the Battery is dead you will first need to determine if it is any good. If it tests O.K. then you need to determine why it went dead.

This would require a test of the charging system

Oct 13, 2010 | 1997 Chevrolet Cavalier

1 Answer

Car would not start. jumped it off twice. replaced battery. ok for 4 mo. stopped dead. replaced alternator. ok for a week. stopped dead. had at shop for three days. ran ok for two. now dead again. could it...


Possible battery drain.
Remove the negative battery cable from its post and connect an ammeter red probe
to the negative battery post and the black probe to the negative battery cable.
Now start pulling fuses until the voltage on the meter returns to normal.
(anything above a half of a volt is too high) The fuse you pulled to get this
result is the affected circuit. Now you have to probe it from its B+ source to
the load
to find the short. Check all connectors for rust and the line for opens or
shorting to ground. Repair accordingly.

Apr 16, 2010 | 2001 Volkswagen Beetle

1 Answer

Toshiba 50A50 whit no picture


cant understand what you going on about

Jun 04, 2009 | Toshiba 50A50 50" Rear Projection...

1 Answer

1989 volvo 740 keeps dieing


I sound like your battery is not charging on its own, the battery is charged by the alternator, the easy way to test the alternator is by using a volt meter ( cheap volt meters a found at autoparts stores on most hardware stores starting around 20 bucks) Test the voltage ant the battery with the car off, then start the car, (jump start if nesasary) then test the voltage again. with the car off the voltage should be around 11.5-12.8 alittle more is ok, but not to much lower, with the car running the voltage should change to around 13-14 volts. if the voltage does not change or drops then the battery is NOT being charged. if its not getting charge then check for loss or corroded wires or wire end terminals,sometimes the is an altenator fuse ( usually uder the hood ether the fuse and relay box or at the battery terminal ) if all is ok the alternator needs to be tested at some place, most places like napa, or westernauto will do it for free, it will need to be removed from the car to do this, since at this point it is most likely dead, you will be taking out to replace anyway.
"Good luck, And I hope for it to be a cheap and easy fix"

Feb 06, 2009 | 1989 Volvo 740

1 Answer

TV Needs new 5 volt regulator


Check for DC output at D653, if you have voltage there find Q682 and measure the voltage at the emitter. You should get 5 volts.
Just a question, if you are missing the 5 volts; do you have any other functions on the TV not working?

Apr 17, 2008 | Emerson EWF2004 20" TV

2 Answers

TV remains in standby


PRoblem is in the start-up circuit for the high voltage power side of the power supply. The 5 volt, stand-by circuit, is obviously fine. Need to take voltage measurements on start-up to 32kv side of transformer to diagnose. Possible flyback transformer or voltage regulator.

Jun 22, 2007 | Sharp 32U-S650 32" TV

1 Answer

DEAD TV


Is good you have checked the main fuse and is good,what that means is you have voltage going in but you loose it down the line,if you have no indication of power(no lights ,no clicks) you need to check if you have the 5 volts that power the microprocessor witch is the brain and it uses 5 volts to aperate,the 5 volts come from a 12 volt regulator so you will have 12 volts in one side and 5 volts in the other,if you have lights or clicks when you push the power button you have 5 volts but one of the other voltages is missing,Check the horizontal output transistor for a short,if it is bad it likely cooked the safety resistor that gives him the voltage.If you are familiar with tv service you have a place to start but if you are not too familiar be safe and call for assistance from a servicer.Let us know if you need more information or how it went.

Oct 05, 2006 | RCA P61960 61" Rear Projection Television

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