[AllanC]

. . . . Either incorrectly or there is nothing within ALLPAR. I did find conflicting information outside of ALLPAR. Is the ASD in the TIPM or somewhere else. The owner’s manual identifies an ASD maxifuse but not a relay. It may be on the inside of the old TIPM lid but I don’t remember which direction I threw it. . . . .

Post #5 by contributor ImperialCrown shows the starter relay and ASD relay adjacent to each other on driver side of firewall. It is not in the TIPM fuse box. Fuse #18 provides power feed to the control side and load side of the ASD relay. Since it is 40 amp, it is larger than blade type fuses.

Attached are images of fuse #18 location and schematic for the ASD relay wiring.

 

[AllanC]

. . . . the car would intermittently fail to shift, often with the traction control light on, and go into limp home. It finally got frequent enough that I had a really good transmission man check it. He said it was the TCM or TIPM, not the transmission. I replaced the TIPM with a rebuilt Dorman TIPM. That produced no change. Started fine, ran smoothly, no shift. Had nonsense codes over a long period leading up to this. Usually or always had low voltage to transmission (P0882, I think). Bought an EBay ECM and had it flashed/programmed with my VIN and mileage. Installed it and have no start/no crank. . . . .

It really is frustrating for an automobile owner when he / she relies on so called "experts" to diagnose problems. In the end it is just guess work and firing the "parts cannon" and hoping for a fix. You replaced the TIPM and the PCM and still no fix. The problem is most likely in the wiring between the PCM and the TIPM and NOT the modules themselves.

Do you have your original PCM and TIPM? I would reinstall those items so at least you can get the engine to start.

There is communication through direct wire cabling between the PCM and TIPM. The PCM instructs the TIPM to power up a circuit and expects a response. In this instance it is communication between the two modules to energize the transmission control system. The PCM is not seeing the expected response from the TIPM that it has energized the solid state relay associated with pressure control solenoids in the transmission. So the diagnostic code is set.

This code P0882 has been discussed in recent posts on the forum. Read through each and you will get the idea of wiring to check.

https://www.allpar.com/threads/another-p0700-p0882-thread.240318/#post-1085292088

2006 Pt Cruiser pcm help!

Hi guys, I recently acquired a 06 pt and right off the bat I knew the battery light wasn't going to be a dead battery nor alternator. Needless to say, I found over a year old paperwork from a shop saying the pcm was bad. I tried my luck with a duralast preprogrammed pcm and wouldn't even test so...

www.allpar.com

. . . .I still think it might be points and condenser. . . . .

There is solid state circuitry or micro relays soldered onto a circuit board that energize transmission control. So you need to check applicable wiring to determine if proper voltages are present.

 

[AllanC]

. . . . I have been reading today. Am a little over my head. I’ve been asked about the ASD relay. Found it this afternoon. I didn’t mention in this thread - codes I got included something like VIN not recognized or implausible VIN. That is part of what caused me and others to strongly suspect the ECM. In one of the links you provided wiring to the transmission to (from memory) C132 and a splice. Was that applicable or only an example. . . . .

There is an error code / diagnostic message about implausible VIN or VIN not recognized. Did this appear after replacing the ECM / PCM? If YES then you have created a REAL BIG issue with this vehicle. Besides the VIN programmed into the PCM, there is other configuration data unique to the vehicle that is retained in the PCM. This is shared across the network with other modules. So you may have an updated VIN in the PCM but other data stored in it is not compatible with your vehicle. Do you still have the original PCM? If YES install it and see if the implausible messages disappear.

I will display again the wiring diagram for your specific vehicle that shows connections between PCM and TIPM. Comments on the schematic explain testing procedures and checks to be made.

 

[AllanC]

. . . . I am making sense of this a little at a time. It appears that I should see 12v on the downstream side of the primary side of the relay. The TIPM controls ground. What should I see on the secondary side? I will find and check the connection and splice. That is clear. The “implausible VIN” DTC and another similar occurred before I changed anything. . . . .

Let's review and identify information about the problem(s) for a clear understanding. Originally there was an intermittent condition such that the vehicle would go into LIMP mode and no shifting of gears of the automatic transmission. There was a code P0882 associated with this transmission controller issue. The engine would start and run. Previous to this you would occasionally receive a message which alluded to invalid or implausible configuration data. Since both of these issues were happening BEFORE the PCM and TIPM change, it is highly probable these error codes were caused by a wiring problem / poor electrical connection and NOT a module failure.

An incorrect diagnosis led you to replace the ECM / PCM and TIPM. Now you have a NO START and NO CRANK situation. Replacing the PCM and TIPM have introdued new unknows into the situation.

(A) Let's tackle the NO START situation. Do you see a square box around the P R N D display in the instrument cluster with igntiion key switch in the ON / RUN position?

(B) The ASD and Starter relays are located on the firewall, driver side. Refer to post #5 by contributor ImperialCrown, dated Nov 1, 2023 for the location in the schematic. The ASD and starter relay have unique wiring colors. Locate the ASD relay by wire colors. See attached image. Place your hand on the ASD relay. Have a helper turn the ignition key switch to the ON / RUN position but not START. Do you feel the ASD relay click and remain energized for 1 - 2 seconds and then de-energize? Report your results for test (A) and (B).