2000 Grand Cherokee - New computer - P1685

Not 100% on this. I believe it takes the dealership programmer to reset the SKIM code.

That sucks. The closest dealer (by far) to me wanted to charge $1200 to replace the ECM in the first place which is why I went to a salvage yard. I wonder if they'll still try to charge me the full amount if I have my car towed in.

From what I read, you should get a P0513 Invalid SKIM Key or P0633 SKIM Key Not Programmed

Sure you have every wire hooked back up with no bent pins?

If there was no feed you would get P1686 No SKIM BUS Messages Received

Be Careful.. start it with the wrong key six times and it will require a trip to the dealer.

I wonder if you have a simple steel key (no skim) AKA, a Valet key, you should be able to get to the dealer. (I would call to confirm this)

This might help.

-----------

Date: 03/02/05

Model Year(s): 1999-2004

Description: NOTE: The model years and vehicles above must be equipped (optional) with Sentry Key Theft Deterrent System (sales code GXX) for this bulletin to apply. When a Powertrain Control Module (PCM) is replaced on vehicles equipped with the Sentry KeyT Theft Deterrent System, it must be initialized to properly function with the anti-theft module. This is accomplished at a Chrysler Group Dealer by using the DRBIII® or StarSCANT Scan Tool to enter a PIN number.

When the PIN number is not available from the vehicle owner or a Chrysler Group Scan Tool(s) is not available this can be accomplished by writing the Vehicle Identification Number (VIN) into the PCM using an after-market scan tool with a "VIN Write Function". More information is available from the scan tool manufacturer or the Equipment & Tool Institute.

NOTE: After performing this procedure with an after-market scan tool on vehicles equipped with Chrysler Group's Next Generation Controller (NGC), Diagnostic Trouble Code (DTC) "P0633 - SKIM SECRET KEY DATA NOT STORED IN PCM" will be set. This DTC will not effect vehicle or system performance and cannot be erased.

Neither.

I would recommend you put the computer back in and change the broken ignition switch.

The fact you can remove the key without shutting down the engine just 'screams' broken or loose ignition switch. The stalls also...

You also might want to look 'real' close at that 'V6' engine....

Mike

Here are a list of my current symptoms: (They only present about 30-40% of the time that I am driving)

1. Occasional stalls during slow sharp turns or reverse
2. Rough ride, with RPMs jumping all over the place
3. Codes for cylindar misfires
4. When I hit 70 mph exactly, car goes in to freewheel until it gets below around 67 mph

This has been going on since Thanksgiving. I have had the following work done so far:

1. New crankshaft sensor
2. Throttle body clean
3. New spark plugs/coils
4. Engine reflash

The ECM I got was only $100 bucks, so I figured I'd give it a try. The techs at all the places I have been to say that it isn't the ignition switch, but I will ask again when I go in tomorrow to get my ECM reprogrammed.

Are the symptoms related to how much gas you have in the tank? eg. works better with a full tank, stalls with an almost empty tank. It might be a defective the fuel pump, causing low fuel pressure to the injectors.

Bill.

I'm trying to figure out how you got a 2000 Grand Cherokee with a V6 engine.

My bad. Typing while tired.

OK, I was wondering if you'd used the way back machine* to put a 2005/6 engine in your 2000 Jeep.

replying to XS11E, jerry reibleinjr wrote: I have a 2000 jeep grand cherokee how is this wierd #9 years later? Mines a v6