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Does the starter relay get power and ground with key in start possition

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Hi, I would need your model, year and engine info to be sure, but usually the ground to the relay coil comes from the transmission range sensor. The positive to the relay may come directly from the ignition switch or from the PCM if there is an anti-theft system involved. I can probably find your diagram if you send the car info.

Posted on May 21, 2011

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Posted on Jan 02, 2017

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Where to find starter relay on 2005 dodge magnum 2.7 liter engine and proper way to check it


In the integrated power module. It should click wthen the key is turned to start. If not, remove the relay and interrogate the relay socket with a volt/ohmmeter. One terminal is always hot. Another is hot when key is turned to start. One terminal goes to starter solenoid--shouls show low ohms to ground. The last terminal gets ground signal from pcm when transmission is in park/neutral. That terminal should show a ground when the key is on and the trans in park.
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The way to start is to ck your battery for 12V & clean bat terminals. Ck the ignition fuse &locate & ck the starter relay for power & ground. Jump the relay between the 2 conn (pwr/grd) See if you start.. Key on If OK r/r relay, If it doesn't work, follow the RED wire to the starter & ck for 12V there. Also ck for a good ground conn at the starter (both with good readings & clean conn. If all is well there when someone else is turning the ignition key to start, then the starter is NG If readings at the starter NG, relocate the starter relay. Good luck, Frank M

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Why wont my car start gauges and lights come on but wont crank no power going to soelinoid wire


If the security system has been reset ( no light on/flashing ) you may have a neutral safety switch problem, Will the vehicle crank over in neutral? In most cases, the neutral switch grounds the starter relay and allows it to operate. Does the starter relay connector have 2 powers? One constant and one with key on/cranking? If these power supplies are there, suspect the ground side of the relay to be the problem and possible neutral safety switch

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94 ford escort lx. Only clicks at relay when trying to start. Replaced battery, ignition relay, neutral safety switch, ignition switch, starter tests good. Power going to starter but no power to exciter...


if you have battery power on the large terminal at the starter and the same on the smaller wire when someone Is turning the key to start and the starter has a good ground then the starter is bad drawing too much amperage causing the clicking sound.

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I think the purple wire (or maybe the yellow) from the neutral safety switch goes to the coil side of the starter relay, turning it on so power is sent from there to the starter solenoid. You could check for this signal to the relay with a test light. The key must be held in start while you probe the other two terminals for the relay. If the signal is there, either a bad relay or the coil side of relay is not grounded properly. It is possible that the coil side ground is the neutral safety switch-grounding the relay's coil side only in park or neutral-in which case the nagging light on shifter (between off and run, it only works?) may be telling you the safety switch is the problem.

You may need to look at a wiring diagram, Greg. But the starter relay is the last component in the start circuit before the starter solenoid. From battery to ignition switch to "crank" fuse to neutral safety switch to starter relay to starter solenoid to starter-and back to battery through ground. That is the start circuit. Just that the wiring tying them all together makes it complicated.

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When the temperature is in the mid to low 30's, 92 Honda Civic will not turn over. No griinding or anything, not even a click. I've been told the battery, starter and carburator are ok. Help! Taxi's are...


Let's see if I can explain it. Pretty simple start circuit, but starting issues are very common to Hondas and Toyotas of the '80's and early'90's. Lots of guys used to rewire their start circuits with new wiring and relays from ignition switch to the starter solenoid just to stop those no starts.
From the ignition switch is the black/white start wire, it is hot only in start, goes direct to the "starter cut relay"- a 4 pole starter relay, the black/ white wire (black with a white stripe) is both the power feed and the coil power to the relay. Before the wire enters the relay it is spliced. one wire goes to power feed at relay, other wire goes to coil side of relay. Here's where the clutch switch comes in: the clutch switch acts as the ground for the relay's coil side. Okay, you turn key to start, power goes to the relay on both the power side and the coil side. When clutch is depressed, it grounds the coil side of relay, this energizes the relay, so power goes out of relay on the power side, as a black/red wire...and goes direct to the starter solenoid. Somewhere before it reaches the solenoid, it turns back into a black/white wire. But nothing else is in a wiring diagram for your start circuit. Buy a can of CRC electronic cleaner. Spray all connectors in the start circuit. Pull off the solenoid wire at starter-that connector. Also the starter relay , pull it out and clean the relay terminals where it plugs in. Get all clean connections in the circuit. If no help, swap in a different relay. If still no help, get a voltmeter (or a test light), when the starter doesn't want to work, check for power at the starter solenoid with key held in start, and clutch depressed. If power there, the solenoid is the problem. If no power, work back to the relay. Pull relay out. With key held in start, two terminals for the relay should have power-the coil plus side, and the power feed from the ignition switch. If both have power, may be the clutch switch not grounding the relays coil side. If no power to relay, check the start wire out of the ignition switch.
Need a wiring diagram? This site is awesome-free wir. diagrams and TSB's for every make and model:

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1 Answer

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have some one check the power on the starter ign wire with key in the start possition

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Check the battery or try jumping it. You can also cross starter connections to turn it over(make sure it is in neutral if stick and wheels are chocked). May have burnt up a relay or the starter selonoid.

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Ground a test light to negative ( ground ) then remove relay and check for power, then have some one turn key forward as to start vehicle and check again there should be another hot when key is turned to start let me know if it helps thanks

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