Question about 2004 Chrysler PT Cruiser

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Replaced the PCM and still cannot retrieve any codes or clear the ASD relay when I connect a scan tool to the harness under the dashboard. Needing to know what could cause this or if I simply purchased a PCM that was not properly flashed to my specific VIN# as is required by the manufacturer.

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Posted on Jan 02, 2017

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SOURCE: No Start. OBDii Code P2305.

i have the same problem could someone please help ? its getting cold outside and i live 30 miles from my job.

Posted on Oct 27, 2008

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SOURCE: codes state that the PCM has a problem, the DC

Mine is under the air filter housing

Posted on Jul 23, 2009

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How do you reset the security alarm in the body control module? My 1995 Jeep sat for almost 3 months. I replaced the steering column, the starter, and the fuel pump. Now it starts, and then kills.

does it have the skim options
the 1993 alarm is not SKIM like on 1999+
it has no skim so can not cut fuel like 1999 can.
but the ASD will drop for 7 other ways.
wow 1995 jeep but what jeep?, no model stated, really?
wrangler , Grand, Cherokee, or reg. Cherokee.?
USA car, not the EXPORT>?
that error is real. it says they can NOT Communicate.
the scan tool will not scan?
or did the scan tool scan then report other errors.
like PCM comm errors. or? is that the tool is dead.
or the PCM will not talk to you.
or is the PCM reporting that it can not comm. to other things?

please be clear. i cant guess what you really saw.
if the scan tool fails that means. (dead scans...?)
the 1995 is not obd2, it's obd1, so your tool is wrong tool.!!!
the 3160 is OBD2 only and only works on all 1996+ cars and light USA. ONLY.

the 3140 is the only tool for DIY, that works. 93-95 jeeps.
besides flash codes. (key on/off trick) do that yet?

no starts are mostly ASD relay drop outs. (and true in this case)
if the ASD drops while cranking, it is an ASD drop cause stall.
the ASD drops in about 3 seconds.
and is caused by up to 8 things, all reported by the working scan too. (and sometimes the keyon/off trick works)
but not the skim reasons, listed, yours dont have SKIM.
are all fuses good?

wild guess on car . model next....
the book free , is it a ZJ jeep? or what, no matter its there...

if fuses are good
do the flash code way.
Start with the ignition off. Within five seconds, switch the key on, off, on, off, on. ("On" is NOT "Start" and "Off" is NOT "Lock").
The "check engine" light will flash. (codes)
Count the flashes. Each code is a two digit code,for example,23 would be FLASH FLASH (pause) FLASH FLASH FLASH (long pause). It may flash out up to 9 codes.
The best tool for 93 to 1995 is the INNOVA 3140 tool for OBD1 (with adapters) Bang for the buck, best.

key in mind at all times, turning off the key does clear some errors you never what to miss. like dead spark....
the method has value but is not good in all cases like real scan tool, that can show errors cranking or running.. or stalling.

Jun 24, 2015 | Jeep Cars & Trucks

2 Answers

Why would a 95 2.5liter jeep engine after replacing crank sencer start up run just fine then after shut off not start untill jumped and rev up high

Did you reset computer
You can do this by removing battery positive and leaving off for about 5 mins make sure you have radio code though

Mar 04, 2015 | Jeep Cars & Trucks

1 Answer

How to remove a dashboard from a 1994 grand cherokee

XJ 94
its not bad, wana bet? 90% are not.
(i used to fix them)
so the PCM,. the FSM book covers that.
why not read that.
PCM is baD ONLY WHEN inputs good, and its outputs are bad.
(and outputs not shorted) !!!
(same or all computers on earth)
lose of power to PCM or ground
or bad power.(weak, or intermittent)

Got DTC errors , post them?
innova 3140 best bank for buck on 93-95 jeeps. !!!
that is a low priced scan tool

are you having ASD relay issues?

see XJ 95 here (same i think)

page 8D-23
engine bay next to Air cleaner.

to diagnose any car, a real scan tool is best.
or you will need a full lab of meters and scopes. like me.
the scan tool show up things the keyon/off trick does not.


Mar 01, 2015 | 1994 Jeep Grand Cherokee

2 Answers

Getting spark to the coil every now and then and the auto shut down relay shuts everything down. Will not turn over.

Great another ASD drop.
you meant it turns over great(but does not start)
all starters crank and turn over the engine. starting is another matter.
why you can not find this is for 2 reasons, no scan tool tops list
and ASD ops.
the scan tool (even a 9 buck one) works in USA cars 96, (all)
click ASD here. on this page.
it tells you all 8 ways for ASD to drop
and guess what, all ASD drops are reported by those 9 buck tools.

easy, once you have the 2 facts.

Nov 25, 2014 | 1996 Jeep Grand Cherokee

1 Answer

Have a 2004 jeep Cherokee that has a p1389 code in

gee 1, last year of Cherokee is 2001, so you meant Grand right??????
gee2, wont start or stalls, no other symptoms????? just 1 DTC, no others using a real scan tool? that be first huh?
Geewise 3, what engine, wow, wrong car, no engine or country.?

the FSM covers this, and the ASD has 8 ways to trip off line'
UP TO 8 ways , just like old wonder bread had.

answering for 2004 GC, (i actually look it up in the real book)
not google butchered DTCs.
P means power train, 1 means factory codes.
a 3 coin toss lands...
2004 GC, vin N, 4.7L v8 automatic,

it reads. verbatim.
Trouble Code: P1389
No Auto Shutdown Relay Output Voltage To PCM
Number of Trips to Set Code: 1
  • Catastrophicmonitor failure.
Trouble Code Conditions:
Engine cranking; and the PCM did not detect any voltage on the ASD Relay Output circuit to the PCM during the CCM test.
Possible Causes:
  1. ASD relay connector is damaged, loose or shorted
  2. ASD relay output circuit is open between the relay and PCM
  3. ASD relay power circuit is open (test power from Fused B+)
  4. ASD relay is damaged or has failed
  5. PCM has failed (nah)

it means, to me.
  • the relay is unplugged
  • or fuse blown "fused B+" (a top reason, world wide)
  • the relay is bad.

my buds ASD page,

Oct 20, 2014 | Jeep Cherokee Cars & Trucks

1 Answer

Where is relay fuel pump on jeep wrangler unlimited 2008

most are one place under hood.
i have same car
all fuses and relays are in the fully integrated power center
under hood, and are clearly marked,
i have full FSM on car. full docs. (i do that for all cars)
why not post symptoms, sounds like car will not start?
on the very complex car, do this >/ (post symptoms first?)
  1. Check all fuses with a voltmeter key on.
  2. plug in scan tool, (i use innova 3160) and see if there are DTC errors, P0,P1, P2, or C and vast others, this car has a huge list, that a list of . folder,
  3. the PCM will tell you when power 12vdc fails at many points in the system and fuel pump is one, and also check that pump relay works, ever read about ASD, bingo, this car has ASD relay too, and when it fails, the PCM code tells you why.
  4. unlike any 2006 !
  5. nice wild goose chase, but I know where mine is ,so....

Jul 12, 2014 | Jeep Wrangler Cars & Trucks

1 Answer

1999 Playmouth 4 cylinder will start after several tries. have new fuel pump, fuel filter, spark plugs and wires, checked ignition coil pack and connections and ASD and fuel pump relays. Everything checks...

I see you replaced the fuel pump , spark plugs an wires , fuel fliter an checked ignition coil pack , Connections ,ASD relay . And everything checks OK ?????? How did you check these thing's ? Testing electrical circuits with a DVOM - digital volt ohm meter ? Fuel pressure testing the fuel pump before replacing ? Does the vehicle have spark ? How about hooking up a scan tool that can view engine sensor data .A bad coolant temp sensor could cause hard starting. Did you check the dark blue with yellow trace wire at the PCM connector 2 pin 67 . This is the PCM control side of the ASD relay . Do you know how a relay works ? how to test at the relay base ? where in plugs into.
How to test computer transistor driver without scan tool

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Jun 01, 2017 | Plymouth Neon Cars & Trucks

1 Answer

No power going to the fuel pump

first check all fuses.
well if the security lamp is on, and the IMMobilizer light glows
it will never run. (by design) (2 seconds max)
so are the lights glowing?
no power going. (when,)
did you read the FSM on the staged events to get engine started.
my wild guess? (sad i have to ask) is it wont start?
1: IMMO not active
2: battery charged volts near 12.6vdc rested.
3: starter cranks fast. and ASD closes
4: ASD relay sees good spark and CKP, and CMP sensors.
5: engine starts, if #4 is good then it sustains running.
if not ASD drops out in 2 seconds. killing INJECTION.
it cuts the fuel pump too.

the PCM will throw a DTC error code (did you scan it cranking ??)
for if the ASD fails to OUTPUT 12v. at step 3.

the PCM closes it, then looks, and if output is bad, it ends this event and logs the failure..

to check the pump , it takes 2 people
one at the key, and one at the pump wires.
or you WILL miss the 2second event.

one way to avoid all that is to hold finger on the ASD relay
and keyon and see if it clicks closed.
if not ., no need to check pump ,its LAST in the chain,
if the ASD clicks and drops out, during that click the pump does run
for 2 seconds, min.,
if the ASD is dead, check the PCM control line to the ASD for
making coil energized in the ASD relay, (12vdc across it for 2seconds)
if the coil is energized, and the DTC throws, for bad ASD , it is.
if the ASD goes, hot only for 2 seconds, again use any $9
scan tool to see the error.
here is the scan too tests. most books forget.
1: scan tool connected.
2; Crank engine for 5 seconds, (min)
3: release key. BINGO, the ECU tells you why the ASD dropped out.
eg: ASD error, CMP error, CKP errors or others (spark?)
does RPM read near 250rpm cranking? on the scan tool?
Is TPS throttle angle near 100% (cutting fuel) ? bad tps. (cut wires)

fixing cars without a $9 scan tool , as sold on feabay is 100x harder.
get the tool and use it.
they rent them cheap or loan them for free.
not to be confused with a code reader, which are near useless.

Feb 11, 2014 | 2004 Jeep Grand Cherokee

3 Answers

I have a 02 grand caravan, there is fuse call asd that keeps on blowing.

Well in a short term, you have a short circuit somewhere. Here is a detailed toturial for you. Please rate this post, thank you.

Automatic Shutdown (ASD) sense - PCM Input

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).

Automatic Shutdown Relay - PCM Output

The PCM operates the Automatic Shutdown (ASD) relay and fuel pump relay through one ground path. The PCM operates them by switching the ground path for the solenoid side of the realys on and off. Both realys turn on and off at the same time.
The ASD relay connects battery voltage to the fuel injectors and ignition coil. The fuel pump relay connects battery voltage to the fuel pump.
A buss bar in the power distribution center (PDC) supplies voltage to the solenoid side and contact side of the relay. The ASD relay power circuit contains a 20 amp fuse between the buss bar in the PDC and teh relay. The fuse also protects the power circuit for the fuel pump relay and pump. The fuse is located in teh PDC.
The PCM controls the relay by switching the ground path for the solenoid side of the relay on and off. The PCM turns the ground path off when the ignition switch is in the Off position. When the ignition switch is in the On or Crank position, the PCM monitors the crankshaft position sensor and the camshaft position sensor signals to determine engine speed and ignition timing (coil dwell). If the PCM does not receive the crankshaft position sensor and camshaft position when the ignition switch is in teh Run position, it will de-energize teh ASD relay.
The ASD relay and fuel pump relay are located in the PDC near the battery. The inside top of the PCD cover has a label showing relay and fuse location.

ASD and Fuel Pump Relays

The following description of operation and tests apply only to the Automatic Shutdown (ASD) and fuel pump relays. The terminals on the bottom of each relay are numbered.

' __85 ___________'
' __87A '87 '30 ___' Sorry for the crudeness of this. This is supposed to
' __86 ___________' be the relay terminals!

- Terminal number 30 is connected to battery voltage. For both the ASD and fuel pump relays, terminal 30 is connected to battery voltage at all times.
- The PCM grounds the coil side of the relay through terminal number 85.
- Terminal number 86 supplies voltage to the coil side of the relay.
- When the PCM de-energizes the ASD and fuel pump relays, terminal number 87A connects to terminal 30. This is the Off position. In the off position, voltage is not supplied to the rest of the circuit. Terminal 87A is the center terminal on the relay.
- When the PCM energizes the ASD and fuel pump relays, terminal 87 connects to terminal 30. This is the On position. Terminal 87 supplies voltage to the rest of the curcuit.

The following procedure applies to the ASD and fuel pump relays.
(1) Remove relay from connector before testing.
(2) With the relay removed from the vehicle, use an ohmmeter to check the resistance between terminals 85 and 86. The resistance shoud be 75±5 ohms.
(3) Connect the ohmmeter between terminals 30 and 87A. The ohmmeter should show continuity between terminals 30 and 87A.
(4) Connect the ohmmeter between between terminals 87 and 30. The ohmmeter should not show continuity at this time.
(5) Connect one end of a jumper wire (16 guage or smaller) to relay terminal 85. Connect the other end of the jumper wire to the ground side of a 12 volt power source.
(6) Connect on end of another jumper wire (16 guage or smaller) to the power side of the 12 volt power source. Do not attach the other end of the jumper wire to the relay at this time.


(7) Attach the other end of the jumper wire to relay terminal 86. This activates the relay. The ohmmeter should now show continuity between relay terminals 87 and 30. The ohmmeter should not show continuity between relay terminals 87A and 30.
(8) Disconnect jumper wires.
(9) Replace the relay if it did not pass the continuity and resistance tests. If the relay passed the tests, is operates properly. Check the remainder of the ASD and fuel pump curcuits.

__________________________________________________ _______________

I know you said you replaced the relay, and this is a test procedure for the relay, but I have bought bad parts in the past. The description before the test procedure at least gives you an idea of what components are wired through and controlled by the relay. One of those may be faulty. Email me if you want or need wiring diagrams and I should be able to scan them and email them to you.

I hope this helps.

Please rate this post, thank you

Apr 07, 2011 | Dodge Grand Caravan Cars & Trucks

1 Answer

Code reads faulty autoshutdown what is the probem I changed the relay did not help

More info would help, have you checked all your fuses in the PDC under the hood, could be wiring issue, PCM, that controlls the ASD relay, also the PCM needs to see cam/crank signal to work the ASD relay, Do you have spark. access a scan tool to monitor signals and actuation of ASD relay. Like I said ,more info would help, and I'm willing to run you through this.

Feb 22, 2010 | 1999 Plymouth Neon

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