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After programming irritrol auto watering system I push the function switch to run and it turns the watering time to off so nothing happens. Voltage at the 24 volt terminal is 13.2 volts, however when

After programming irritrol auto watering system I push the function switch to run and it turns the watering time to off so nothing happens. Voltage at the 24 volt terminal is 13.2 volts, however when I wn hook the 24 volt wire and check it it reads 24,4 volts

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  • Cars & Trucks Master
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The typical lousy power source for this system is likely defective. They will normally rise to 140-150% of nominal voltage (24V) and settle around the required voltage when loaded.
Check the supply (if separate) for a rating of voltage and current; for example: "24VDC/XXMa" where the 'XX' is the current that will either be in milliamperes or amperes.
To correctly measure the voltage, you must know first if it's output is AC or DC.

If this is a DC supply, it probably has a failed diode, if AC, the transformer is bad.

A less likely, but possible problem, is that the programmer itself has an internal failure and is overloading the supply.

If you have a meter with a separate 10A jack, and you can interrupt either side of the supply line, try measuring the load current.
This will however, only be possible if the 10A can measure both AC and DC or if you know that the supply output is DC.

Posted on Nov 22, 2014

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Posted on Jan 02, 2017

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SOURCE: Voltage declines at Battery terminals after starting

bad generator

Posted on Apr 30, 2009

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SOURCE: Will not charge

you will get some funny answers from some of these "experts " The symptoms suggest to me with out much doubt that the regulator is not doing its job correctly ,consistently.Iwould take it to an AUTO ELECTRICIAN and get it tested in situ.... there is only 4 things it can be , wireing ---battery---alternator-----regulator and of those the reg. is the only one that chops and changes. it will cost little for a sparky to check the reg ,. AND I WOULD LIKE TO KNOW THE OUTCOME

Posted on Oct 22, 2009

  • 6 Answers

SOURCE: 84 CK TRK, 2500, 5.7L 55,000 miles have replaced

On some of the older style GM's you can take that brown wire and cut it and take the end leading from the alternator and hook it directly to the hot terminal on the alternator and just leave it hooked up and it will work. But I have ran into the occasional problem where leaving it hooked up will drain the battery when the vehicle isn't running. Hope this helps..

Posted on Oct 25, 2009

Testimonial: "I fixed the problem - the terminal at the brown wire was corroded - after cleaning and recrimping - everything works - thanks for the heads up"

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2002 GMC Sonoma, is there a way to disconnect auto lights, just turning them off doesn't work. Truck will just shut off going down the road, have replaced steering column and brain, all lights everyth


Does yours have ZR2 option.?
The automatic lamp control (ALC) system and the daytime running lamps (DRL) feature, except the Canadian version, can be temporarily disabled by performing the following procedure:
  1. Turn the ignition to RUN.
  2. Press the DOME OVERRIDE button 4 times within 6 seconds.
A chime will sound informing you that the system is off. The system will remain disabled until the ignition is cycled off and then on or by pressing the DOME OVERRIDE button 4 more times within 6 seconds. The chime will sound again signaling that the system has been reactivated.
What brain did you replace ? You people crack me up , trying to save money by doing it yourself . You have no idea of the complexity of the system . You could have taken to a Qualified repair shop an spent less . Why on earth do you thing this has anything to do with the truck shutting off ? An it could have been as easy as hooking up the Tech 2 factory scan tool . There are a number of DTC'S - diagnostic trouble codes that could be set for the ALC .
DTC B2648
The body control module (BCM) monitors the courtesy lamp relay coil control circuit in order to determine if the daytime running lights (DRL) or the auto headlights (ALC) should be turned ON in the AUTO mode. When the BCM senses the ambient light sensor voltage is between 1.7 volts and 4.7 volts, the DRL will be commanded ON. When the BCM senses the ambient light sensor voltage is between 0.2 volts and 1.0 volts, the ALC will be commanded ON.
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, observe the ambient light sensor parameter in the Body Control Module (BCM) data list .
Does the scan tool indicate that the ambient light sensor parameter is within the specified range?
0.2-4.7 V
DTC B2647
The body control module (BCM) monitors the ambient light sensor signal circuit in order to determine if the daytime running lights (DRL) or the auto headlights (ALC) should be turned ON in the AUTO mode. When the BCM senses the ambient light sensor voltage is between 1.7 volts and 4.7 volts, the DRL will be commanded ON. When the BCM senses the ambient light sensor voltage between 0.2 volts and 1.0 volts, the ALC will be commanded ON.
DTC B1398
And , if it was the BCM - body control module you replace , It's no wonder the truck shuts off , Don't know if your aware of it , but that brain needs to be programmed .
Important: If the module is replaced, the module must be programmed prior to performing the Passlock Learn procedure.
  1. Ensure that the following conditions exist in order to prepare for BCM programming:
  2. ?€¢
    The battery is fully charged.


    ?€¢
    The ignition switch is in the RUN position.


    ?€¢
    All accessories are turned OFF.


    ?€¢
    All modules and devices are connected and functioning properly before programming.

  3. Follow the SPS instructions on the Techline Terminal and scan tool to program the BCM.
  4. If the BCM fails to accept the program, perform the following steps:
?€¢
Inspect all BCM connections.


?€¢
Verify that the SPS Techline Terminal and scan tool have the latest software version.




What

Oct 23, 2016 | 2002 GMC Sonoma

3 Answers

Ignition problem,turn key but nothing happens?


First thing to do is look at the dash lights when you put the switch in START position. If they blink or dim, you may have a faulty battery or poor connectivity.
Next try jumping the starter. You'll find a starter jumper at almost any auto parts. If you get no result then the problem is with the starter, If the starter turns then the problem is in the starting circuit from the switch to the starter relay.

Dec 05, 2011 | 1998 Jeep Cherokee

1 Answer

I have a 1993 Chevrolet Suburban The engine (new) has been dragging (at times) when starting for a month or so. Now it will not turn over at all, nothing. The battery is good however it only reads 9 volts...


its a possibility that the alternator is shoot, and you do not have the power to turn engine over to start it. if battery is ok ! then get vehicle started. all accessories off,with it running you should have at least 14.2-14.7 voltage at battery. if you do not have a way to check this. auto-zone will check for free, as well as advanced auto.if all is ok, and the voltage running is less the 14 volts. replace alternator. good-day !

Sep 25, 2011 | 1993 Chevrolet Suburban

2 Answers

My 2006 C280 was due for service B , and I just did the oil change only. How can I reset service B message on the car computer ?


Reset process should be listed in the owners manual.

Should be something like turn car to on(not running) press trip button twice, turn to off and hold trip button till it resets.

Apr 19, 2010 | 2007 Mercedes-Benz ML320 CDI

2 Answers

If you turn the key to acc, nothing happens, if you turn it to on, nothing happens, but if you turn it all the way to start, it does star but when the key springs back like normal, it turns the truck off....


did you replace the switch or did you replace the ingnition cylinder (cylinder is the part the key goes in)the switch is what controls the start acc and keeps the car or truck running

Jan 02, 2010 | 1990 Ford F150

1 Answer

2003 gmc mirrors do not fold in


The power mirrors are controlled by a module (computer) DDM - drivers door module an the PDM - passenger door module .
Folding Mirror System
Folding Mirror System Controls
The folding mirror system requires signals from 2 separate switches. The mirror select switch must be in the neutral/fold position and the mirror direction switch must be activated to the left/extend or right/retract positions. Both switches are integrated into the DDM and provide direct signals.
Folding Mirror System Operation
Upon receipt of the required switch inputs the DDM will supply battery voltage and ground to the mirror fold motor control circuits to perform the requested extend or retract function. The DDM will also send a class 2 message to the PDM indicating the requested function. The PDM will supply battery voltage and ground to the mirror fold motor control circuits to perform the requested extend or retract function.

Power Mirror System
Power Mirror System Components
The power mirror system consists of the following components:
• The driver door module--Class 2 module with integrated switches and requires programming when replaced
• The passenger door module--Class 2 module with integrated switches, requires programming when replaced and also contains the RFA receiver
• The power mirror direction switch--Integrated into DDM and is a 4-position momentary switch that provides a signal input to the DDM for up, down, left/extend and right/retract with a mirror switch activation
• The mirror select switch--Integrated into DDM and is a 3-position switch that allows the operator to select the left or right mirror and also a neutral/fold position
• The left outside power mirror--Contains both the vertical and horizontal mirror motors and is serviced as a complete mirror assembly
• The right outside power mirror--Contains both the vertical and horizontal mirror motors and is serviced as a complete mirror assembly
• The body control module--Class 2 module that requires programming when replaced, serves as the power mode master and is the main message handler
• The DDM 10A fuse--Located in the I/P fuse block and is hot at all times
• The PDM 10A fuse--Located in the I/P fuse block and is hot at all times
• The memory switch, if equipped with memory mirrors--Supplied power by the DDM and provides a voltage signal to the DDM upon a switch activation
• The horizontal and vertical position sensors, if equipped with memory mirrors--Supplied a 5-volt and low reference by the DDM/PDM and provide a variable voltage signal to the DDM/PDM that is proportional to mirror position
• The park neutral position switch, if equipped with memory mirrors--Provides transmission gear selection information to the PCM and is used for memory recall and mirror tilt in reverse functions
• The powertrain control module, if equipped with memory mirrors--Class 2 module that requires programming when replaced and provides Class 2 message indicating transmission gear selection
• The driver information center (DIC), if equipped with memory mirrors--Part of the instrument cluster which is a Class 2 module that requires programming when replaced and is used to personalize the memory recall and mirror tilt in reverse functions
• Fold motor in each of the outside mirrors, if equipped with power fold mirrors--Provides extend and retract movements of the mirror and is serviced as a complete mirror assembly
Each of the outside power mirrors contains 2 reversible motors to provide horizontal and vertical movement of the mirror glass. The vertical motor operates the up and down directions and the horizontal motor operates the left and right directions. If equipped with power folding mirrors, each outside power mirror will contain a reversible fold motor to operate the extend and retract functions. Each of the mirror motors are circuit breaker protected.
DTC B1722
The driver door module (DDM) and passenger door module (PDM) switch the mirror fold motor control circuits to battery voltage and ground in response to mirror extend or retract command.

Apr 06, 2017 | 2003 GMC Yukon XL

1 Answer

2000 diesel ram 3500 starter will not turn engine 20% of starts. After clicking key a few times, starter will turn. Starter was replaced and same thing happens. Is there something else in the start circuit...


relays are common on dodges, go in fuse box, pick another one such as horn,a/c one that you dont need to run but know is good and swap it out. try that, it could be the ign. switch too, neutral saftey switch on a auto, and clutch safety switch on a manual. make sure nothings jammed underneith clutch pedal also and your pushing it all the way down. check for dirty battery connections to. good luck!

Sep 03, 2009 | Dodge Ram Pickup 3500 Cars & Trucks

1 Answer

1999 Chrysler Town and Country


Have you you tried just re-programming all of your remotes? I just added a "new" (from Ebay) remote and when re-programming, had to do them all. Here's how... 1. Using a functional key fob transmitter, unlock the vehicle and disarm the Vehicle Theft Security System. 2. Insert ignition key into the ignition switch. 3. Turn the ignition switch to RUN position without starting engine. 4. Using a functional key fob transmitter, press and hold the UNLOCK button for a minimum four seconds (maximum ten seconds) 5. While holding UNLOCK button, and before ten seconds passes, press and release the PANIC button. A single chime will sound to verify that the RKE module is set to receive the new Vehicle Access Code(s) 6. Within 30 seconds of the chime, press and release the "LOCK" and "UNLOCK" buttons on the transmitter at the same time. Then press any one of the buttons. The BCM will sound an abbreviated chime to acknowledge that the programming of the transmitter has been completed and was successful. 7. Repeat step 6 for all transmitters that will be used with this vehicle (up to 4 total) 8. Programming mode will last for 30 seconds. To get out of programming mode sooner, turn the ignition OFF. A single chime will sound to verify that the RKE module will no longer accept additional Vehicle Access Code(s) 9. When Vehicle Access Code(s) programming is complete, turn the ignition switch to the OFF position and verify RKE system operation using each key fob

Aug 03, 2009 | 1999 Chrysler Town & Country

1 Answer

2000 jimmy stuck in auto 4 wheel drive


when can you engaged auto 4wheel drive and how long can you run it

Dec 03, 2008 | 2001 GMC Jimmy

2 Answers

Burning thru multi-function switches


talk with an accredited auto electrician about the fault and if it is a problem of excessive current draw through the switch as him to install a light relay to take the heavy current draw away from the switch
check the bulbs in use and if they are bigger than 65/55 h4 bulbs that may be the reason for the heavy current draw

Apr 01, 2017 | 2000 Pontiac Sunfire

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