No Crank / No Start Relay Diagnosis Jeep

http://www.wellsve.com This video demonstrates how to diagnose a no crank problem by using the connections to the relay.

"The information presented in this program is based on a specific diagnostic case and might not directly apply to the vehicle you are repairing. We do not represent or warrant that the information presented is complete or error free. Please take all safety precautions. We disclaim any and all liability for losses, injuries or damages in connection with your repair."

Category:

Autos & Vehicles

Tags:

• Wells Vehicle Electronics
• no start
• no cranks
• relay
• Diagnosis
• voltmeter
• jumper
• Jeep
• starter
• ignition switch
• green
• screen

[nunez9300]

Am having the same issue. I have a 08 dodge charger 2.7 v6. Battery, starter, checked good. Fuses look good too. Thinking that the starter relay was bad, I swapped it with another one with the same part #. No luck.

[markjhicks]

@nunez9300 Lots of problems with the SKIM Sentry Key Immobilizer. The first thing you want to try is a spare key. Also check to see if you have any codes, including Body codes. Let me know what happens.

Mark Hicks

Wells vehicle Electronics

[hp11208]

i have a 2000 mazda mpv is this the same steps

[markjhicks]

@hp11208 If it has a 4 pin relay, it is the same.

If I can help you with anything more, let me know.

Mark Hicks

Wells Vehicle Electronics

[felipevinalay]

Markjhicks, I wish can have the magic book, stil no voltage at coil, but the ASD pin 30 have voltage, I tray with another pcm  and still the same.

[markjhicks]

@felipevinalay Usually pin 30 leads to the coil positive. If this is the case for your vehicle, run a jumper from pin 30 to the coil positive terminal, if this works you have a broken wire in between.

Mark Hicks

Wells Vehicle Electronics

[1PossumJenkins]

Good info, but it's better to show more close-ups of the schematic instead of the special effects.

[markjhicks]

@claroscuro73 Thank you for watching the video. I will be happy to help you with any problems pertaining to vehicle electronics, however I do not have information on a water pump replacement. May I suggest contacting a water pump or cooling system manufacturer.

Mark Hicks

Wells Vehicle Electronics

[nunez9300]

I have 2 FOB keys that are used instead of a normal car key? None of them do anything. When I try any of them, the only noise the car makes is the beeping sound when the key is inside and the door is opened, no dash board and not even the radio turns on. Haven't tried looking for codes yet. Will let you know.

[felipevinalay]

I have not tested whether the fuse has power or not , thank for the tip, I really did think about it.

[markjhicks]

@felipevinalay That could very well be the problem. Especially seeing they usually go under or near the battery. You didn't say if the fuse had power going to it or not. If it does have power than the problem is from there to the relay.

Mark Hicks

Wells Vehicle Electronics

[felipevinalay]

I look the diagram and I only have two fuses:# ten and 17, 10A to relay start which pin 30 have voltage, fuse 17 20A its good, to me the problem is between the battery to fuse 17, but there are bunch of wires and that the problem to me.