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Maxdorp TV 74cm no mod no. Ht rises to full 143vthen fades off, when switched off then on again cycle repeats.lop stage is dissed. .any indicators as to the fault? Thanks barry

No shorts apparent

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What will cause a 1999 Pontiac Sunfire to not go into the extended learn mode when replacing the ign lock assembly .


Did you clear codes ? . All codes in the theft deterrent module must be cleared for a relearn.
PASSLOCK Changing - Components Description
Important: Due to component variability, the vehicle theft deterrent (VTD) system must have the learn procedure performed regardless, if the vehicle starts on the first ignition cycle after a VTD repair.
All codes in the theft deterrent module must be cleared for a relearn.
Engineers design the Passlock™ system in order to prevent theft even if the various theft deterrent parts change. The Tamper mode will engage if any of the following components change:
• The Passlock™ lock cylinder
• The instrument cluster
• The powertrain control module (PCM)
If you replace any of the above components, the system will enter the long tamper mode. If the system enters the long tamper mode, ensure that the system completes a long tamper mode cycle. During the long tamper mode cycle, the THEFT indicator will flash for the full 10 minutes. The instrument cluster and the PCM require the full 10 minutes in order to complete the learn cycle. Ensure that the ignition switch remains in RUN until the indicator stops flashing. If you turn the ignition switch before the indicator stops flashing, repeat the long tamper cycle from the beginning.
Are there any codes ?
Problem
Action
The THEFT SYSTEM indicator will not light under any circumstances.
Replace the instrument cluster.
For Chevrolet vehicles, refer to Instrument Cluster Replacement .
For Pontiac vehicles, refer to Instrument Cluster Replacement .
Multiple indicators light continuously.
Test for a loss of serial data. Refer to Data Link Connector.
Instrument cluster DTC B1021 sets.
The DTC indicates a loss of powertrain control module (PCM) serial data. Refer to Data Link Connector.
Instrument cluster DTC B1022 sets.
The DTC indicates a loss of SIR serial data. Refer to Data Link Connector.
Instrument cluster DTC B1023 sets.
The DTC indicates a loss of ABS serial data. Refer to Data Link Connector.
PCM DTC P1601 sets.
The DTC indicates a loss of PCM serial data. Refer to Data Link Connector.
PCM DTC P1629 sets.
The DTC indicates PCM Theft Deterrent failure. Refer to the appropriate diagnostic table in Engine Controls.
Instrument cluster DTC B1011 sets.
Refer to DTC B1011 Passlock Cyl Data Shorted This Ign Cycle .
Instrument cluster DTC B1012 sets.
Refer to DTC B1012 Passlock Bad R-code This Ignition Cycle .
Instrument cluster DTC B1013 sets.
Refer to DTC B1013 Passlock Bad Timing This Ignition Cycle .
Instrument cluster DTC B1014 sets.
Refer to DTC B1014 Passlock R-code Unprogrammed .
Instrument cluster DTC B1015 sets.
Refer to DTC B1015 Passlock Cluster Fail Enabled .
Instrument cluster DTC B1017 sets.
Refer to DTC B1017 Passlock R-code Learn Failed .
The indicator flashes and no instrument cluster codes are set.
Refer to DTC B1013 Passlock Bad Timing This Ignition Cycle (the diagnostic table for DTC B1013).

Apr 07, 2017 | 1999 Pontiac Sunfire

1 Answer

I have a 2002 Ford Explorer Sport no heat but the fan works,what could the problem be?


Could be that the thermostat has packed up...

Check all your coolant levels are correct and then take her for a good run out....keep your eyes on the temperature gauge,,if your temp gauge hardly moves then your thermostat is at fault....replace it.

If temp gauge works fine, you may be airlocked in your heater matrix... Try setting heater to full heat with fan on full power,, whilst car is ticking over, remove radiator / expansion bottle cap carefully and start squeezing your coolant pipes. This should force any air out through your rad/bottle top..

Please be aware that as your temperature rises in the engine. Your coolant will expand and start to flow out of the rad/expansion bottle..at this stage quickly replace the cap....check your heater...leave engine to cool....unscrew rad/bottle cap, check coolant levels, top up if necessary and squeeze pipes again..start car with heater/fan on full and repeat above.....

Hope this helps..

Nov 29, 2016 | 2002 Ford Explorer

2 Answers

08 mkz: overheating when outside temps go over 100. A/C blows hot when overheating. Replaced fan & control module. Coolant system flush. Problem persists. No issues when outside is<100. 3 yrs no fix.


Have you had the vehicle checked for DTC'S - diagnostic trouble codes ? There is Fail Safe Cooling
The vehicle has a strategy built into the powertrain control module (PCM) that will control the engine if it starts to overheat.
Stage 1 of the strategy will commence if the engine starts to overheat. The cylinder head temperature (CHT) sensor transmits a signal to the PCM, which then moves the temperature gauge pointer into the red zone.
If the engine is not switched OFF and the temperature continues to rise, the powertrain check lamp is illuminated. This indicates to the driver that the engine is approaching critical limits and should be stopped. At this point, DTC P1285 is set in the PCM and can be retrieved using a scan tool.
Stage 2 of the strategy will commence if the lamp and temperature gauge are ignored by the driver. The PCM will start to control the engine by cutting out cylinders and restricting the rpm to below 3,000 rpm. Simultaneously, the malfunction indicator lamp (MIL) will be illuminated. This indicates that long-term engine damage can occur and vehicle emissions will be affected. At this point, DTC 1299 is set in the PCM and can be retrieved using a scan tool.
Air is then drawn into the deactivated cylinders. This helps to control the temperature of the engine internal components. The deactivated cylinders are alternated to allow even cooling of all the cylinders.
NOTE: If the driver is using a high percentage of throttle travel (for example, an overtaking maneuver) when the PCM starts, engine deactivation will be delayed for 10 seconds.
NOTE: After the cylinder deactivation operation has begun, the engine will not revert to operating on all cylinders, even if the temperature should fall, until the ignition is switched OFF and then ON again.
NOTE: The malfunction indicator lamp can only be extinguished by using a scan tool after the fault has been rectified and the DTC cleared.
Stage 3 of the strategy will commence if the engine temperature still continues to rise. This will result in the engine being totally disabled before major engine damage or seizure occurs. The powertrain check lamp will begin to flash, indicating to the driver that the engine will be switched OFF after 30 seconds. This allows the driver time to choose a suitable parking place.
who replaced the cooling fan motor an control module ? Maybe it's time you take your vehicle to a qualified professional , unless you like replacing parts that don't need replacing !

Aug 17, 2016 | Cars & Trucks

2 Answers

My 1997 ford tauras overheats at a stoplight but cools down when driving in town is this the thermostat or waterpump or?


There is a switch that should turn electric fans on next to the radiator when you're stopped. There is a switch that does that that's likely gone bad. "temperature switch" is what they call it.

Oct 17, 2015 | Ford Cars & Trucks

1 Answer

How to know when a car coile is bad


The best way to check the coil is to see if the coil is heating up too much as it indicates a SHORTED winding or a POOR INSULATION. In both these cases the high tension voltage( HT) will drop and so there will be a poor spark.
Now check also the +12 on the coil end positive side and the other side must get the switched voltage , to be shorted to ground with the best switching.
If HT is poor on the spark plugs , check also the HT cables to confirm the HT coil.

Jul 29, 2011 | 2002 Chevrolet TrailBlazer

1 Answer

Radio continues to fade in and out, plays for awhile fades out


Need more information on this if possible.

It may be the speed volume is enabled on your radio, does it fade out when you start to come to a stop? Some vehicles have a speed volume setting in their radios in which the radio raises and lowers the volume during driving conditions, like when your comming to a stop, the volume will automatically lower and during faster driving speeds will rise to a higher volume.

Hope this helps
JD

Sep 10, 2009 | 2001 BMW 325

1 Answer

The AC and circulation indicator lights are blinking


With engine running and blower motor on, press and hold (for about 5 seconds) the Top and Bottom buttons for the rear wiper controls. All the lights in the ventilation panel buttons will come on, then the top two lights will alternate as it cycles through the blower stages, then all go off. You may need to repeat the procedure a couple of time until the condition finally clears completely.

Sep 02, 2009 | 1996 Plymouth Voyager

1 Answer

1998 280C Benz A/C keeps kicking out


You may be low on R134a and need a simple charge. As the Compressor cycles, the low side pressure drops and if it drops to far it will cut the compressor off till the pressure rises again. The high pressure side rises and the low side drops, but when it drops to far since there is not enough R134a in the system you get the on off cycle. The other cause to this is a bad pressure switch, or bad expansion valve, and moisture in the system as it ices up in the lines and pressure builds causing the pressure switch to cut the compressor off too. Re-cap, try recharging the a/c system for now since it's still working. Good luck and keep me posted. Be glad to help.

Jun 25, 2009 | 1994 Mercedes-Benz C-Class

1 Answer

Im not getting any spark


What was the problem that caused you to fit the distributor? If it was an attempt to fix the problem that you still have, then you need to work backwards from the distributor. Remove the central HT lead that feeds to the distributor from the coil, hold it a couple of millimeters from the egnine block and turn the engine over, do you see a spark there? If you do the didtributor is the issue, if you don't it is probably fine and the problem is further back.
Next, try a known good HT lead and connect this to the coil and repeat the step above. If no spark then the coil is not operating. At this stage, I have to admit that I don't know if the celica has a separate coil??? If it does then there will be 2 wires to it, one to earth and the other being fed a pulse of positive power. Remove the positive feed, connect a wire to the terminal and holding the HT lead near to the block again, replicate the power pulse by tapping the other end of your wire on the positive terminal of the battery. If you get a spark, then it is the feed that is powering up the coil. Of you don't then you have a dead coil and it will need changing.

Jan 23, 2009 | 1992 Toyota Celica

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