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What should voltage and ohm readings be? - Cars & Trucks

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Posted on Oct 17, 2013

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How many ohms does a toyota two wire camshaft position sensor puts out

ohms is a resistance reading
you will be reading the difference from input voltage to out put voltage and that difference is the resistance on a multimeter

Jan 24, 2017 | Toyota Cars & Trucks

1 Answer

1992 buick century 3.3 what should the fuel injector ohms be reading or the voltage should be reading. i checked mine 4 of them are reading in the 20s voltage

Ohms should read 11 to 15 at the injector pins. Power at the plug should be battery voltage. 12.5 with key on. Use a noid light to see if the injector wires/PCM is firing the injectors. the light should flash when cranking the engine over.

Oct 15, 2016 | 1992 Buick Century

1 Answer

How to test a solenoid

You can Ohm test it. But you need to know what the tolerance is. Some test at around 11 ohms, some up to 30 to 40 ohms. If it reads nothing, it is bad. You can test them with voltage, But you need to know what voltage they take. Testing a 5 volt solenoid with 12 volts will kill it.

Dec 15, 2015 | Cars & Trucks

2 Answers

Can I test an ignition module on an onan engine with a volt, ohm or amp meter?

well sure you can, allthough if you have allready replaced the coil and plug , i can't see why you'd need to , it's the last thing there is to replace , but if youd like to anyway , just ground the black lead of volt meter anywhere on engine thats not painted or rusty , hold red lead on - side of coil (its the one with half the battery voltage on it) and turn engine over slow as possible you should see the volts rise and fall as it turns over , if not the ign module is not working
also i question why does this have a condenser if it has electronic ign ? cant say id ever seen that before .

Sep 24, 2014 | Cars & Trucks

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Rear passenger window won't work with that door switch or the master switch.

Sometimes these windows get stuck, esp. if theyhaven't been operated in a while. Try gently tapping on the inside vynil door veneer with a rubber hammer while actuating the switch. If that doesnt work, pop the veneer off and check for voltage at the switch contacts to ground. Find a screw or read against the hinge for a good ground - paint doesnt conduct, so find some bare metal. Put the other probe against the contacts. You should read 12 volts. If not, probably a bad connection somewhere. If you read voltage, actuate the switch and voltage should disappear if switch is good. Then read across motor (unhook connections) in the ohms (resistance) setting. You should read ohms - not sure of the value. If zero or infinity, motor is shorted or open, respectively. Sorry, dont have time for more details. Msg me if you need more help.

Jun 23, 2014 | 1994 Buick LeSabre

1 Answer

Precor error codes 53

Precor Error 53, Can't Read Target, Can't Find Home Switch Probable Cause 1. Blown F2 fuse.
2. Home switch wiring is damaged or has intermittent connection.
3. Gear (elevation/incline) motor wiring is damaged or has intermittent connection.
4. Home switch is bad.
5. Gear (elevation/incline) motor is bad.
6. Gear (elevation/incline) motor target is damaged.
7. Lower PCA is bad.
Corrective Action
  1. Disconnect power from the unit. Remove the F2 fuse from the lower PCA. Using an ohm meter, measure the fuse for 1 ohm or less. If the reading is considerably high, replace the fuse. If the fuse is blown, inspect further for the cause to avoid the fuse blowing again. Inspect for damaged gear motor wiring or a bad gear (elevation/incline) motor. Replace if necessary.
  2. Thoroughly inspect the home switch wiring for damage or intermittent connections. Repair or replace damaged wiring or poor connections as necessary.
  3. Thoroughly inspect the gear (elevation/incline) motor wiring for damage or intermittent connections. Repair or replace damaged wiring or poor connections as necessary.
  4. Ensure the moving arm is away from the home switch and disconnect power from the unit. Disconnect both wires from the home switch. Using an ohm meter, check for approximately 0 ohms. Continue to monitor the home switch resistance and activate the home switch by hand. The reading should change from approximately 0 ohms to open (infinite). If either reading is considerably incorrect, replace the home switch.
  5. With unit disconnected from power, disconnect both wires from the gear (elevation/incline) motor. Using an ohm meter, check for approximately 9 ohms through the gear (elevation/incline) motor wiring. If the reading is considerably high or low, replace the gear motor.
  6. Inspect the gear (elevation/incline) motor target for rips, tears, or bad scratches. If any of these are found, replace the target.
  7. During the start up sequence, check the voltage at the gear (elevation/incline) motor. Voltage should be approximately 12VDC. The voltage should only be present between the time the sequence was started and the error 53 occurred. If the voltage is considerably low or absent and the F2 fuse proved good, replace the lower PCA.
Precor Error Code 53

Nov 02, 2013 | Cars & Trucks

2 Answers

What voltage should be delivered to the fuel pump on a 2001 Olds alero?? I'm reading 4.6 Volts (anticipated 12 volts). If 12 is required any suggestions on where to look for the decrease.

that's the voltage of the fuel sender unit, i.e. gas gauge. try the other wires. the power goes on for only 2 seconds so you'll need someone else to turn the key while you check this out

Jan 03, 2011 | 2003 Oldsmobile Alero

1 Answer

What is the fuse # for the power window

On the right side of your glove box, open the passenger door to access compartment #26 30 amp.

As for the power windows, try this.
1.        Measure voltage at 30 amp circuit breaker #26 at fuse block. Meter should read battery voltage. If not, replace or repair open to 60 amp fuse #13 in Power Distribution Center (PDC) as required.
2.        Turn ignition switch to off and measure resistance from ground lug on left side kick panel to ground. Meter read zero ohms. If not, repair open to ground.
3.        Remove master power window switch on left front door. Measure resistance at black wire (terminal one of green connector). Meter should read zero ohms. If not, repair open to ground.
4.        Turn ignition switch to on and measure voltage at terminal 5 of black connector. Meter should read battery voltage. If not, repair open to circuit breaker #26 in fuse block.
5.        Close master window switch. Measure voltage at terminal 1 of black connector. Meter should read battery voltage. If not, replace switch.
6.        Operate window switch. All windows should operate.

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May 20, 2010 | 1994 Jeep Grand Cherokee

2 Answers

I need to know how to test my alternator without removing it to see if it's working. 1996 Jeep Cherokee Country.

Use a voltmeter to test battery voltage with the engine running. If the alternator is working correctly, the voltage should read 13.5 to 14.5 volts DC. If reads 12.6 volts or less, the alternator is not charging the battery. Take the car to Autozone or similar business for a free checkout of the alternator. It might be a bad voltage regulator instead of the alternator.

Feb 09, 2010 | Jeep Cherokee Cars & Trucks

1 Answer


turn on car and use voltmeter on the sensor get the base reading then get a reading with the throttle partly opened and see if it increases or what. it could be faulty, if it is not within spec then get a new one, unplug the batter negative terminal and install new sensor. reconnect everything and you shuold be on your way!

Feb 03, 2009 | 1993 Buick LeSabre

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