Question about LG LS-L1210CL Mini Split Air Conditioner

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No output voltage on circuit board terminals 1,2,3,and 4.

I have proper input volatge of 115 volts at terminls 5 and 6. In line fuse on terminal 1 at 2.5 amps checks good.What is the proper voltage at terminals 1,2,3 and 4? Wiring diagram doesn't show what it should be. As I remember it was 35 volt vdc.

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  • Master
  • 674 Answers

I think those are your thermostat connections and are probably 24 vac. Check the output of the transformer and make sure it is 24 vac. If it isn't make sure power is supplied to the input of the transformer.

Posted on May 02, 2010

  • Brian Niten May 02, 2010

    Unless the unit is calling for A/C then you will only have 24 vac beween the red thermostat wire and common.

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Code on 2010 Enclave about the cooling fans running all the time while engine is on.Code is refrigerant pressure sensor cicuit low voltage. # is P0532-00.Does anybody know where sensor is located


DTC P0532: Air Conditioning A/C Refrigerant Pressure Sensor Circuit Low Voltage
The sensor gets 5 volt ref. voltage from the ECM - engine control module . Three wire sensor , all wires are to an from the ECM .

Circuit/System Description
The engine control module (ECM) monitors the high side refrigerant pressure through the A/C refrigerant pressure sensor. The ECM supplies a 5-volt reference and a low reference to the sensor. Changes in the A/C refrigerant pressure cause the A/C refrigerant pressure sensor signal to the ECM to vary. When the pressure is low, the signal voltage is low. When the pressure is high, the ECM commands the cooling fans on. When pressure is too high or too low, the ECM will not allow the A/C compressor clutch to engage.

Circuit/System Testing
Ignition OFF, disconnect the harness connector at the A/C refrigerant pressure sensor.
Ignition OFF, test for less than 10 ohms between the low reference circuit terminal 1 and ground.
? If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the ECM.
Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit terminal 2 and ground.
? If less than the specified range, test the 5-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the ECM.
? If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the circuit tests normal, replace the ECM.
Verify the scan tool A/C High Side Pressure Sensor parameter is less than 0.1 volts (1 psi).
? If greater than the specified range, test the signal circuit terminal 3 for a short to voltage. If the circuit tests normal, replace the ECM.
Install a 3A fused jumper wire between the signal circuit terminal 3 and the 5-volt reference circuit terminal 2. Verify the scan tool A/C Refrigerant High Side Pressure Sensor parameter is greater than 4.90 volts (425 psi).
? If less than the specified range, test the signal circuit for short to ground or an open/high resistance. If the circuit tests normal, replace the ECM.
If all circuits test normal, test or replace the A/C refrigerant pressure sensor.

A/C Refrigerant Pressure Sensor
In the engine compartment, on the high pressure refrigerant line

Do you know difference between high an low side lines ?
between alternator an the compressor

Feb 07, 2018 | Cars & Trucks

2 Answers

2003 dodge grand caravan surging and running rough when accelerating


I recommend you test the tps according to procedure below. Especially step 8. Suspect you will see drop outs in the voltage, which indicate sensor is worn out.
Operation

The Throttle Position Sensor (TPS) is mounted to the side of the throttle body and connects to the throttle blade shaft. The TPS is a variable resistor that provides the PCM with an input signal (voltage). The signal represents throttle blade position. As the position of the throttle blade changes, the resistance of the TPS changes.
The PCM supplies about 5 volts of DC current to the TPS. The TPS output voltage (input signal to the PCM) represents throttle blade position. The TPS output voltage to the PCM varies from about 0.5 volt at idle to a maximum of 4.0 volts at wide open throttle. The PCM uses the TPS input, and other sensor input, to determine current engine operating conditions. The PCM also adjusts fuel injector pulse width and ignition timing based on these inputs.
Testing

In order to perform a complete test of the TPS and related circuits, you must use a DRB or equivalent scan tool, and follow the manufacturers directions. To check the Throttle Position Sensor (TPS) only, proceed with the following tests.
  1. Visually check the connector, making sure it is attached properly and that all of the terminals are straight, tight and free of corrosion.
  2. The TPS can be tested using a digital ohmmeter. The center terminal of the sensor supplies the output voltage. The outer terminal with the violet/white wire is the 5-volt supply terminal and the black/light blue wire is the sensor ground terminal.
  3. Connect the DVOM between the center terminal and sensor ground.
  4. With the ignition key to the ON position and the engine OFF, check the output voltage at the center terminal wire of the connector.
  5. Check the output voltage at idle and at Wide Open Throttle (WOT):
  6. For 1996 vehicles at idle, the TPS output voltage should be greater than 0.35 volt (0.4 volt for the 2.4L engine). At WOT, the output voltage should be less than 4.5 volts (3.8 volts for the 2.4L engine).
  7. For 1997 and later vehicles at idle, the TPS output voltage should be about 0.38-1.20 volts. At WOT, the output voltage should be about 3.1-4.4 volts.
  8. The output voltage should gradually increase as the throttle plate moves slowly from idle to WOT.
  9. If voltage measures outside these values, replace the TPS.
  10. Before replacing the TPS, check for spread terminals and also inspect the PCM connections.

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Jul 26, 2017 | Dodge Cars & Trucks

1 Answer

2000 cadillac deville gas gauge avg went blank car won't start


Your best bet is have it checked for DTC'S - diagnostic trouble code's first before doing anything ! Sorry but you have no idea of the complexity of this vehicle .
Body Control System Circuit Description
The body control system consists of three modules, the Dash Integration Module (DIM), the Instrument Panel Integration Module (IPM), and the Rear Integration Module (RIM).
Dash Integration Module (DIM)
Battery Positive Voltage (B+) is provided from IGN SW fuse 20 in the Rear fuse Block on CKT 540 (ORN) to the DIM at connector C3 terminal G. The module ground is on connector C3 terminal E, which is wired to ground G201 by CKT 451 (BLK/WHT). Battery positive sense voltage is provided from DIM fuse 39 in the Rear fuse Block to the DIM at connector C3 terminal A12 on CKT 3340 (ORN). This battery input is referenced to the ground sense input at DIM connector C3 terminal B12, which is wired to the battery negative terminal and to ground G307 on CKT 50 (BLK). These sense inputs are physically connected to the battery positive and negative terminals for accurate battery voltage readings. The DIM is wired to the Class 2 serial data line CKT 1807 (PPL) at connector C2 terminals A11 and A12. The various DIM input and output circuits are described in the corresponding functional areas as indicated on the DIM electrical schematics.
Instrument Panel Module (IPM)
Battery Positive Voltage (B+) is provided from I/P fuse 7 in the Underhood fuse Block on CKT 440 (ORN) to the IPM at connector C1 terminal C1. Ignition Positive Voltage (IGN3) is provided from the IGN3 RR fuse 6 in the Rear fuse Block to the IPM on CKT 41 (BRN) at connector C1 terminal C2. The voltage inputs are referenced to the module ground at connector C1 terminal D16 on CKT 451 (BLK/WHT). The IPM is wired to the Class 2 serial data line CKT 1807 (PPL) at connector C1 terminals C7 and C8. The various IPM input and output circuits are described in the corresponding areas as indicated on the IPM electrical schematics.
Rear Integration Module (RIM)
Battery Positive Voltage (B+) is provided from IGN SW fuse 20 in the Rear fuse Block on CKT 540 (ORN) to the RIM at connector C1 terminal A1. Ignition Positive Voltage (IGN1) is provided from IGN1 fuse 12 in the Rear fuse Block on CKT 1039 (PNK) at RIM connector C1 terminal A3. These voltage inputs are referenced to module ground at connector C1 terminals B7 and B8 on CKTs 1051 (BLK). The RIM is wired to the Class 2 serial data line CKT 1807 (PPL) at connector C2 terminals B3 and B4. The various RIM inputs and outputs are described in the corresponding functional areas as indicated on the RIM electrical schematics.

Aug 11, 2016 | Cadillac Cars & Trucks

1 Answer

Fuse number for winderwiper


Hi Maddie, I'm glad to help! Below, I have posted a diagnostic procedure to see why the wipers are not working on your Dakota. Hope this helps and have an awesome day Maddie!



DIAGNOSIS
WIPER MOTOR

The following are wiper motor system problems,
tests to be performed to locate the faulty part, and
the proper action to be taken. If the malfunction involves
only the delay mode, switch, or wiring, see the
diagnosis for Intermittent Wipe Module and Wiper/
Washer Switch.
CONDITION
Motor will not run in any wiper/washer
switch position.
PROCEDURE

(1) Check fuse 10 in the fuseblock module. If OK,
go to step 3. If not OK, replace fuse and go to next
step.
(2) Check motor operation in all wiper/washer
switch positions. If not OK and fuse blows, go to step
5. If not OK and fuse is OK, go to next step.
(3) Place wiper/washer switch in LOW position and
listen to motor. If you cannot hear it running, go to
next step. If motor is running, check motor output
shaft. If output shaft is not turning, replace motor
assembly. If it is turning, drive link to output shaft
or linkage is not properly connected. Replace worn
parts and/or properly connect drive link to the motor
output shaft.
(4) Connect a voltmeter between motor terminal L
and ground strap (Fig. 1). If there is little or no voltage
(less than 1 volt), move negative test lead from
the ground strap to battery negative terminal. If an
increase in voltage is noticed, the problem is a bad
ground circuit. Make sure the motor mounting is free
of paint and that mounting fasteners are tight. If
there is still no indication of voltage, the problem is
an open in wiring or faulty wiper/washer switch. If a
small increase (greater than 3 volts) in voltage is observed,
the problem is a faulty motor assembly.
(5) Disconnect motor wiring connector and replace
fuse. If fuse does not blow, motor is defective. If fuse
blows, wiper/washer switch or wiring is at fault.
CONDITION
Motor runs slowly at all speeds.
PROCEDURE

(1) Disconnect wiring harness connector at motor.
Remove wiper arms and blades. Connect an ammeter
between battery and terminal L on motor (Fig. 2). If
motor runs and average ammeter reading is more
than 6 amps, continue to next step. If motor runs
and average ammeter reading is less than 6 amps, go
to step 3.
(2) Check wiper linkage or pivots for binding or obstruction.
Disconnect drive link from motor. If motor
now runs and draws less than 3 amps, repair linkage
system. If motor continues to draw more than 3
amps, replace motor assembly.
(3) Check motor wiring harness for short between
high and low speed circuits. Connect a voltmeter or
test lamp to motor ground strap. Set wiper/washer
switch to LOW position. Connect other lead of voltmeter
(test lamp) to terminal H of the wiring harness.
If voltage is present, there is a short in the
wiring or wiper/washer switch. If no voltage is
present, go to next step.
(4) Set wiper/washer switch to HIGH position.
Move voltmeter (test lamp) lead from terminal H to
terminal L of the wiring harness. If voltage is
present, there is a short in the wiring or wiper/
washer switch.
CONDITION
Motor will run at high speed, but not at low
speed.
Fig. 1 Voltmeter Between Terminal L and Ground

Motor will run at low speed, but not at high speed.
Fig. 2 Ammeter Between Terminal L and Battery
WIPER AND WASHER SYSTEMS 8K - 3

Apr 26, 2014 | 1995 Dodge Dakota

1 Answer

Map sensor


Manifold Absolute Pressure Sensor

Print


OPERATION

See Figures 1, 2 and 3


0900c1528003c4d9.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 1: MAP sensor location-2.4L engine


0900c1528003c4da.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 2: MAP sensor location-3.0L engine


0900c1528003c4db.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 3: MAP sensor location-3.3L and 3.8L engines
The PCM supplies 5 volts of direct current to the Manifold Absolute Pressure (MAP) sensor. The MAP sensor then converts the intake manifold pressure into voltage. The PCM monitors the MAP sensor output voltage. As vacuum increases, the MAP sensor voltage decreases proportionately. Also, as vacuum decreases, the MAP sensor voltage increases proportionally.
With the ignition key ON , before the engine is started, the PCM determines atmospheric air pressure from the MAP sensor voltage. While the engine operates, the PCM figures out intake manifold pressure from the MAP sensor voltage. Based on the MAP sensor voltage and inputs from other sensors, the PCM adjusts spark advance and the air/fuel ratio. The MAP sensor is mounted to the intake manifold, near the throttle body inlet to the manifold. The sensor connects electrically to the PCM.


TESTING

See Figures 4, 5, 6 and 7


0900c1528003c4dc.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 4: Disengage the MAP sensor connector-3.0L engine shown

WARNING When testing the MAP sensor, make sure the harness wires do not become damaged by the test meter probes.

  1. Visually check the connector, making sure it is attached properly and that all of the terminals are straight, tight and free of corrosion.



0900c1528003c4dd.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 5: MAP sensor connector terminal identifications: (A) 5-volt supply, (B) sensor signal, (C) ground-3.0L engine shown


0900c1528003c4de.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 6: MAP sensor connector terminal identifications-2.4L, 3.3L and 3.8L engines


0900c1528003c4df.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 7: Using a digital volt-ohmmeter, test the MAP sensor voltage-3.0L engine shown

  1. Test the MAP sensor output voltage at the sensor connector between terminals B and C (2.4L, 3.3L and 3.8L engines), or A nd B (3.0L engine).
  2. With the ignition switch ON and the engine not running, the output voltage should be 4-5 volts. The voltage should fall to 1.5-2.1 volts with a hot, neutral idle speed condition. If OK, go to the next step. If not OK, go to Step 5.
  3. Test the PCM terminal 36 for the same voltage described in the previous step to make sure the wire harness is OK. Repair as necessary.
  4. Test the MAP sensor ground circuit at the sensor connector terminal A (2.4L, 3.3L and 3.8L engines) or C (3.0L engine) and PCM terminal 43. If OK, go to the next step. If not OK, repair as necessary.
  5. Test the MAP sensor supply voltage between the sensor connector terminals A and B (2.4L, 3.3L and 3.8L engines) r A and C (3.0L engine) with the ignition key in the ON position. The voltage should be about 4.5-5.5 volts.
  6. There should also be 4.5-5.5 volts at terminal 61 of the PCM. If OK, replace the MAP sensor.
  7. If not, repair or replace the wire harness as required.


REMOVAL & INSTALLATION

See Figures 1, 2, 3 and 4
The MAP sensor is mounted on the intake manifold near the throttle body inlet to the manifold.

  1. Disconnect the negative battery cable.
  2. On the 3.0L engine only, disconnect the vacuum hose from the MAP sensor.
  3. Detach the electrical connector from the MAP sensor.
  4. Unfasten the mounting screws, then remove the MAP sensor from the vehicle.

To install:
  1. Install the sensor onto the intake manifold and tighten the mounting screws to 35 inch lbs. (4 Nm).
  2. Attach the sensor electrical connector.
  3. On the 3.0L engine, connect the vacuum hose to the MAP sensor.
  4. Connect the negative battery cable.

Jul 21, 2012 | 1997 Plymouth Voyager

1 Answer

My 2003 town and country is running rough and sputtering i got code p1297 I replacep the map sensor and it did not fix the problem. What could be the problem


Hi, please use a voltmeter set to VDC to check the inputs and outputs of the MAP sensor as indicated below. Please get back to me with questions or results of your test.

Testing
jturcotte_585.jpg
  1. Visually check the connector, making sure it is attached properly and that all of the terminals are straight, tight and free of corrosion. Reinstall the connector and probe the back of the connector where the wires go in to check the output as follows.
  2. Test the MAP sensor output voltage at the sensor connector between terminals B and C (2.4L, 3.3L and 3.8L engines), or A and B (3.0L engine).
  3. With the ignition switch ON and the engine not running, the output voltage should be 4-5 volts. The voltage should fall to 1.5-2.1 volts with a hot, neutral idle speed condition. If OK, go to the next step. If not OK, go to Step 5.
  4. Test the PCM terminal 36 for the same voltage described in the previous step to make sure the wire harness is OK. Repair as necessary.
  5. Test the MAP sensor ground circuit at the sensor connector terminal A (2.4L, 3.3L and 3.8L engines) or C (3.0L engine) and PCM terminal 43. If OK, go to the next step. If not OK, repair as necessary.
  6. Test the MAP sensor supply voltage between the sensor connector terminals A and B (2.4L, 3.3L and 3.8L engines), or A and C (3.0L engine) with the ignition key in the ON position. The voltage should be about 4.5-5.5 volts.
  7. There should also be 4.5-5.5 volts at terminal 61 of the PCM. If OK, replace the MAP sensor.
  8. If not, repair or replace the wire harness as required.

Trouble Code: P1297

No Change In MAP Signal From Start To Run Transition
Possible Causes:


Engine vacuum port to MAP Sensor clogged, dirty or restricted MAP Sensor signal is skewed or the Sensor is out-of-calibration MAP Sensor VREF circuit open or grounded (intermittent fault) PCM has failed

Aug 26, 2011 | Chrysler Town & Country Cars & Trucks

1 Answer

Po123 04 kai


Hello www_ropesmor,

This code P0123 is Throttle position sensor circuit high input.

There four basic reasons for this code.

1. An open or short to ground between the TPS (throttle position sensor) and the ECM (Engine control module).
2. A short to battery voltage between TPS and the ECM.
3. A short between the TPS wires.
4. A faulty TPS.

See below for connector diagrams.

First, with scan tool monitor TPS with throttle closed voltage should be
I f you don't have a scan tool, back probe terminal 1with a volt meter to ground and you will see the voltage as outlined above otherwise follow the steps below.


1.Check to see if there is about 5 volts at the TPS; with engine off key on disconnect the TPS back probe the harness side terminal 3 to ground with a volt meter if there is about 5 volts go to step 2 if about 5 volts if not repair the 5 volt circuit.

2. Probe the harness side terminal 2 to chassis ground with a volt meter, if voltage above .02 repair circuit 2 short to voltage. If voltage is .02 volts or below go to step 3.

3. Probe the harness side terminal 1 to ground with volt meter if below .5 volts go to step 4 if not repair short to battery between TSP harness and ECM connector

4 Turn the ignition off and disconnect the ECM connector . With an ohm meter measure the resistance between the ECM (terminal C18) and TPS ground circuit it should be below 1 ohm. Measure the resistance between the ECM (terminal C8) and TPS signal circuit it should be below 1 ohm. If not repair the open circuit.

After faulty circuit is found and repaired clear code and verify repair.

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netvan_161.png


I hope this helps.

Regards,

netvan

Aug 15, 2011 | 2004 Kia Optima

1 Answer

Car starts has no power until the gas pedal is almost to the floor. In 2nd the tach is at 3500 rpm and won't shift until i let up on the gas. It also hesitates and is using more gas than usuall.


Check the TPS (Throttle position sensor) wire lead and replace the TPS if any signs of damage or failure.

The Throttle Position Sensor (TPS) is used to send input signals to the Powertrain Control Module (PCM) to indicate the current angle of the throttle blade.

Theory/Operation:
This sensor is a variable resistor that has a 5 volt reference signal applied to it by the PCM. The TPS sends signals back to the PCM in the range of approximately 1 to 4 volts, depending upon the throttle shaft angle. The PCM uses these input voltages to determine the current position of the throttle.
The PCM uses the voltage signals from the TPS and other input sensors to determine the proper air/fuel mixture and ignition timing for certain operating conditions. Some of these operating conditions are: acceleration, deceleration, idle, and wide open throttle.


Typical Readings:
An input voltage of approximately 1 volt indicates a minimum throttle opening, idle, or deceleration condition. An input voltage of approximately 2 volts indicates a cruise or light acceleration condition. An input voltage of approximately 4 volts would indicate a maximum throttle opening or wide open throttle condition.
NOTE: The following procedure tests the TPS only.
  1. The TPS can be tested with an analog voltmeter. The center terminal of the TPS is the output terminal.
  2. With the ignition key in the ON position, check the TPS output voltage at the center terminal wire of the connector. Check this at idle (throttle plate closed), and at wide open throttle (WOT).
    • At idle, TPS output voltage should be approximately one volt. The output voltage should increase gradually as the throttle plate is slowly opened from idle to WOT.
    • At wide open throttle, TPS output should be approximately 4.5 volts.
As always, check the service manual for the proper procedures and specifications for your particular vehicle.

Thank you using Fixya and good luck.

Mar 08, 2010 | 2002 Oldsmobile Alero

1 Answer

Oven lights not working. replaced both bulbs. both lights still not working. Is this circuit fused, if so, where is fuse located?. First problem on this Kitchen aid Superba in 12 years. John.


The oven lights get power from the main circuit board.
Access the circuit board and check output voltage on board terminals P4-4 to P4-1.
No voltage would be a bad board.
If you get voltage at these terminals the wires or sockets are bad.
The board is not repairable. Only replaceable.

Mar 15, 2009 | KitchenAid Kitchen Ranges

3 Answers

Marantz mm9000 has died


The main power transformer may not have the correct voltages coming out of it. I would check the output volts at the terminals. I would also check the out puts from the solenoids.
GOD LUCK
BIG RED

Jan 25, 2008 | Marantz MM9000 5-Channel Amplifier

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