Question about 1998 Jeep Grand Cherokee

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Where is the asd relay in 97 Cherokee 4L

Vehicle turns over well, but won't start. Diagnostic says poor asd relay. There are 4 similar relays in the fuse box. Which one is asd? Thx!

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  • Jeep Master
  • 20,706 Answers

Great question the ASD, a key relay to sustained starts and running.
and told the engine, bravo !!!
post the DTC error code.
The ASD can drop out for many reasons, post all DTC codes
and never forget, crank for 5 seconds then look for DTCs
and pendings....

RTM
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

see wiring page
see PDF page 22, BINGO.

Posted on Feb 13, 2014

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SOURCE: 98 grand cherokee asd relay blowing fuse

The fuse it doing it's job, you have a short ( Wire that is connected to a ground, that draws too much power )

If you have an electrical schematic ( Repair manual ) find out which wires are connected to that fuse and check them for any chaffing, cuts, unnesassary twists, or corrosion.

If you have a ohm-meter, isolate the system ( by disconnecting the fuse, and other connections. Then check for any resistance on wires that should not be connected ( because you disconnected them ) by having one Lead on the wire's connector and the other meter-lead on your car's frame. A good wire will not have continuity if it is isolated.

Posted on Apr 10, 2010

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Related Questions:

1 Answer

Code P1388 and P1399


P1388 JEEP - ASD or CNG (compressed Gas) Relay Control Circuit Possible causes - Faulty ASD Relay (most common cause)
- Faulty CNG Relay
- ASD or CNG Relay harness is open or shorted
- ASD or CNG Relay circuit poor electrical connection
- ASD or CNG Relay poor ground or supply voltage condition

P1399 is a related to the P1388 failure.

Jun 27, 2016 | 2000 Jeep Grand Cherokee

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The red immobilizer light is staying on,the engine cranks but wont start..


You then have a ant-theft system problem an need to have the vehicle checked for DTC'S - diagnostic trouble codes . The ASD - relay supplies power to the ignition coils an too the fuel injectors .The ASD- auto shut down relay is energized by the engine computer - PCM . With the red anti-theft light on the PCM will not turn on the ASD relay cause a no start condition . You can check fuse an relays all you want ,not going to do any good . You need to see what the ant-theft systems problem is .

Feb 29, 2016 | 2003 Chrysler PT Cruiser

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Code p1388


possible reasons for the code:

- Faulty ASD Relay

- Faulty CNG Relay
- ASD or CNG Relay harness is open or shorted
- ASD or CNG Relay circuit poor electrical connection
- ASD or CNG Relay poor ground or supply voltage condition

Sep 17, 2012 | 2001 Dodge Grand Caravan

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My 1990 jeep won't start just turning-what are the possiability


under the hood you will find a fuse box that has a relay in it called an ASD relay.. its about one inch square. the lid of the fuse box will tell you witch one is the asd relay.. you can swap it with another relay in that box to see if the truck will start. if not check to see if you have spark and fuel pressure..

Jul 07, 2012 | 1993 Jeep Grand Cherokee

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What's your problem?AutoZone computer read no ASD relay voltage at PCM ? 2001 jeep cherokee sport --electric radiator fan won't come on?


Sounds like maybe the relay is not working. Posible causes might be a bad relay, no power to the ralay, a grounded wire from relay to the PCM (computer) ect...

May 28, 2012 | Cars & Trucks

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2005 pt cruiser won't start won't crank, everything works


When you turn the key on the ASD relay should turn on the fuel pump and power the injector, Do this lets cheat the system go to the ASD rely open the cover expose the inside have some one turn the key on does the ASD make contact? If not turn the key on collpase the ASD so it make contact do you hear the fuel pump come on? Now try this just as how you iopen the ASD do the same to the starter relay. Put the car in gear e brake on someone in the vehicle in case the car start and you are in front of it and it runs you over so at least they step on the brakes. Key on ASD exposed as your collapse the starter relay does the ASD relay turn on? Here why if you can control all the relay from under the hood you will need a ignition switch (the eletrical part)

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My ASD fuse is making a clicking noise and vibrating. What is the function of this fuse?


ASD fuse is called an AUTOMATIC SHUT DOWN FUSE. The ASD sense circuit informs the PCM when the ASD relay energizes. A 12 volt signal at this input indicated to the PCM that the ASD has been activated. This input is used only to sense that the ASD relay is energized.
When energized, the ASD relay supplies battery voltage to the fuel injectors, ignition coils, and the heating element in each oxygen sensor. If the PCM does not receive 12 volts from this input after grounding the ASD reley, it sets a Diagnostic Trouble Code (DTC).

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I have a 1994 Jeep Grand Cherokee Laredo 6 Cyl. The vehicle was kind of running rough on idle. Take in consideration that I have replaced the spark plugs, spark plug wires a while ago. So I decided to...


CHECK ASD RELAY THAT IS AUTOMATIC SHUTDOWN RELAY IN THE POWER DISTRIBUTION CENTER UNDER THE HOOD IN ENGINE COMPARTMENT.IF ASD RELAY GOOD PROBLEM COULD BE CAMSHAFT SENSOR IN THE DISTRIBUTOR.TO SAVE TIME AND MONEY HAVE JEEP SCANNED FOR CAMSHAFT SENSOR AND CRANKSHAFT SENSOR FAULTS.

Apr 23, 2010 | 1994 Jeep Grand Cherokee

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