I turn the key to the start position and the motor doesn't start, i replaced the starter motor relay, and i get the same problem, motor will start if i jump the two connections on relay, i think it is in the wioring itself, if it is, i need a wiring diagram for the ignition. thanks
Pull the small wire off the relay and have someone else turn the key to start position and check for voltage on that small wire, if there is no voltage present your problem may be the ignition switch mounted on the colum under the dash.
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Is the anti-theft light lit on the instrument cluster ? Won't start how ? When you turn the key to start , what happens ? Nothing ? This would be a No crank - no start condition . Now if you turn the key to start and the starter engages and spins the engine and it doesn't start an run , this is a engine cranks no start condition ! Now which is your problem ?
There are two fuse's IGN A fuse 40amp and IGN E fuse 10amp ,both are located in the under hood fuse/relay box . Also there is starter relay located in the same under hood fuse /relay box . There also is a crank fuse 10amp in the under hood fuse box . Besides the fuse's and relay ,the ignition switch or the PNP - park neutral position switch could be bad . Testing the whole starter circuit should be done ! How to voltage drop test starter motor circuit
The clicking noise will be relays. Possibly a starter relay and thats normal. Sounds as if the starter moter may be the culprit. You have to check for start power at the starter solenoid while cranking before any further daignostics can be done. Sometimes tapping on the starter motor while holding the key in the crank position will start the vehicle. If so the stater motor is defective
first make sure battery is charged if so then then check the relay in the fuse box under the hood find the relay that marked "ing" pull that relay then find a nother one to inter change with it, if car still wont start then ou will need to see if the in line fuse on the starter wire is good or blown if its good then you will need to pull the starter and replace it. hope this helps you
1. Make sure your battery is fully charged.
2. Check connections from battery to starter relay.
3. Make sure you have voltage going to the start side (small wire) of the relay with the key in the "start" position.
4. If you don't have voltage going to the start side of the relay (small wire) with key in the start positon, then your starter switch is faulty (under dash usually mounted on top of steering column).
5. If you have voltage to the start side of the relay (small wire) with key in start position, and it don't click when trying to start your car, then the starter relay is bad.
6. If your starter relay clicks, but engine don't turn over, then the starter is faulty.
if the fuse is blowing when you turn key to start position then this is where to look for the fault ,between the ignition switch and the relay then the other side of the relay to the starter motor solonoid
Sounds like an issue with the fuse for the starter motor relay, or the starter motor relay itself.
The fuses for the starter system are F101 & F102 The starter motor relay is in the cab fuse panel.
The other thing to check if turn the key from off to run, press and hold the brake, and shift the truck into neutral and try starting with the brake still applied. This is testing the DTR ( Digital Transmission Range ) Sensor on the transmission. Should have no impact on what you did, could just be coincidence that the no crank no start issue just started.
OK, even if you find the starter, you'll have to find a way of testing it.
StarterTestingStarting System Voltage Drop TestsNOTE: The battery must be in good condition and fully charged prior to performing this test.
There are three area of the starter motor circuits that voltage drop test can be performed on. These include:
Disable the fuel system by removing the fuel pump fuse or the fuel pump relay.
Verify that the vehicle will not start.
Connect the positive lead of the voltmeter to the case starter B+ terminal.
Connect the negative lead of the voltmeter to the lug (the starter M terminal) that connects the starter solenoid to the starter motor.
Turn the ignition key to the START position and note the voltage displayed on the voltmeter.
Ideally, there should be no more than 0.2 volt drop across the starter solenoid displayed on the voltmeter.
In general, there should be no more than a 1.0 volt drop throughout the entire starter motor feed and ground circuit. Any voltage drops measured in either the feed or ground circuits after connections have been cleaned will require replacement of the affected battery cable. Typically, any voltage drops measured in the solenoid are repaired by replacing the starter motor.
Before servicing the vehicle, refer to the precautions at the beginning of this section.
Record the radio anti theft code data.
Remove or disconnect the following:
Negative battery cableOn 2002-05 vehicles, shift cableStarter motor electrical connectorsOn 2002-05 vehicles, starter heat shieldStarter motor
Fig. Starter motor mounting-3.5L Engine
Install or connect the following:
Starter motor. Tighten the bolts to 20-24 ft. lbs. (27-33 Nm).On 2002-05 vehicles, starter heat shieldStarter motor electrical connectors. Tighten the battery terminal nut to 106-141 inch lbs. (12-16 Nm).On 2002-05 vehicles, shift cableNegative battery cableReprogram the radio anti theft codes
Hi, Sounds like a bad starter relay. When you turn your key to start, current flows through a relay which in turns supplies 12 volts to the solenoid on your starter motor. As you alluded to , typically the common clicking sound that we all hear occasionally, is usually related to a flat battery or bad starter motor, but as you have had these checked (by a professional?) the only possibility is the relay that supplies 12 volts DC to your starter motor solenoid. Thought you might find this interesting to help you understand ignition systems:
http://auto.howstuffworks.com/ignition-system.htm Cheers, Steve (Melbourne, Australia)
There is no relay for the starter motor.Disconnect the plug from a tumbler and just short the positive wire with starter motor one.If O.K. the problem is into ign.switch.If your VW have automatic gearbox-check parking switch on gear lever.