Hello Xalty, Thanks for your reply. I am performing the tests in order and posting results with pics

 

Hello OldKarz, Thank you for your response.

I have not locate the image of the electrical diagram yet.

I am performing the test G239843t2 DLC Pin 6 (CAN +) and RA01 pin 8;
So far I have the values from each wires at each of the ends of RA01 (that should correspond with pins 1, 8, 9, 16) as follows:
-blue with red tracer: 0.0 ohms
-red: 60.4 ohms
-yellow with 2 red tracers: 2.0 ohms
--red with 2 yellow tracers: continuity

I have double checked that I was measuring DLC pin 6 and RA01 connector.

Next problem (given above numbers are properly determined) will be ascertaining yes or no ("is resistance greater than 5 0hms), and the meaning of what to do next if result is yes ("if yes: repair the high resistance circuit. For additional information refer to the wiring diagrams. Clear the DTV. Test the system for normal operation).

I am/ have been reading ahead in sequence of tests, and thinking about next points to determine, ie which of the above noted color wires, eg CAN + and CAN -, etc;
and by reading even further ahead, I see the manual indicates:
to check RA01 pin 16 for continuity;
and in addition, further states may need to proceed to test YAW rate sensor CAN+.

I will continue to work on this. Thanks again for your learned help!

And thanks to all of the other members who have helped.

Happy holidays to all members!

 

Pinpoint test G239843t2
edit above post:
-blue with red tracer: 0.0 ohms
-red: 60.4 ohms
-yellow with 2 red tracers: 2.0 ohms is typographical error: should be 0 ohms
--red with 2 yellow tracers: continuity


G239843t2: Measure resistance between DLC pin 6 (Y) and RA01 pin 8(Y):Is resistance greater than 5 ohms?
Result: No.


Next Test is Pinpoint test G239843t3 (pg 837):

 

the fact you’re still getting CAN timeout codes makes me think this is a gate problem, everything goes through it

 

Next Test is Pinpoint test G239843t3 (pg 837):




Pinpoint test G239843t3 Result:
I am posting result of measurements at each of the 4 corners of the 16 way connector (again as I did for pinpoint test G239843t2) to see if you concur with result as the 16way connector does not have numbers labeled on the pins :
-blue with red tracer: 0.0 ohms
-red: continuity
-yellow with 2 red tracers: 0 ohms
--red with 2 yellow tracers: 59.4 ohms.

I am posting the results of the measurement at each of the four corners as I am unable to see (as of yet) the colors of the wires behind the DLC and this test reads a (G) for RA01 pin 16 but the 16way connector doesn't have a green wire at either of its 4 corners.

 

Pinpoint test G239843t4



Is resistance between DLC pin 6 (Y) and IP23 pin 2 (Y) greater than 5 ohms?
pinpoint test G239843t4 result: 0 ohms
no

next test is pinpoint test G239843t5:

Pinpoint test G239843t5:is resistance between DLC pin 14 (G) and IP23 pin 1 (U) greater than 5 ohms?
Result: 0 ohms
no

 

Since you are at the DLC, with battery disconnected, what resistance is there from pin 6 to ground and also pin 14 to ground?

 

Hello Xalty, Thank you for your response. A you may know the j-gate (and the brake sensor[s]) was my initial intuition. I will post soon again herein regarding my j-gate, as I was previously concerned the manual I have states both 2005 at the top of all its its pages and 2004- 05 on certain pages. I say soon, as I will also continue these sequence of tests.

ps the only purpose of the pic in this post is to show how the manual I have says 2005 at the top of its pages yet 2004-05 also.

thanks again-I continue...

 

Hello OldKarz, Thank you for you response. I appreciate your time and efforts.

With the battery disconnected (negative terminal disconnected), I tested the resistance from:
(1) DLC pin 6 to ground: result: 0 ohms
(2) DLC pin 14 to ground: result 0 ohms.

ps The multimeter also is returning a positive continuity audible tone of very short duration, and when I tested resistance of the pin 6 to the negative post of the battery the multimeter returns a constant audible tone. I mention this as to advise of the short duration continuity audible tone at the bolts mounting down the brackets in the center console area, vs constant duration audible tone, if test between the pin 6 and the negative battery post (with battery disconnected). Didn't test resistance from pin 14 to the negative battery post, as I reconnected the battery before I wrote this. ps 2. Battery voltage is at 13.7V.

 

Next test in sequence beginning at G239843p1 is:
Pinpoint test G23943t6:


Now I am searching for location of ASCCM and the respective pins...

edit. Thanks to Don for posting, " The Adaptive CruiseControlModule (ACC) is mounted behind the front bumper to the left of the radiator (as viewed from the driver's seat). It is near the air suspension compressor and left fog lamp."

 

OK. So you have a short to ground on the CAN bus! Disconnect your ABS connector and test for short to ground again. My bet is that you will no longer have a short at DLC.

 

Hello OldKarz, Thank you for your reply.

I disconnected the negative terminal at the battery;
I disconnected the ABS connector;
I tested resistance:

1. DLC pin 6 to neg battery post: result have continuity
2. DLC pin 14 to negative battery post: result have continuity










Ps earlier today before I did above test, I disconnected negative terminal at battery and tested resistance between DLC pin 6 to negative battery post and have continuity, then tested resistance between DLC pin 14 to negative battery post, and have continuity.

 

Well, I would lose my bet! It should be greater than 10k Ohms for each. If you can still easily get to the J-Gate module I would disconnect there and do the test at the DLC again. That would narrow the search down by removing a number of modules at once.

 

Hello OldKarz, Thank you for your reply.

I am going to do above test again (test CAN- and CAN + short to ground on DLC pin , and on DLC pin 14)) as measurements must be re taken. Reason the connector for the yaw rate sensor (under the j gate in the center console) was still disconnected from previous test ( G239843t4: and G239843t5 ).

reperformed test
test result: 12/07/21:
I disconnected the negative terminal at the battery;
I disconnected the ABS connector (Yaw rate connector, j-gate connector and all other connectors (except ABS connector ) I recall are connected )
I tested resistance:

1. DLC pin 6 to neg battery post: 0 ohms;
2. DLC pin 14 to negative battery post: 0 ohms.

reperformed test
test result: 12/07/21:
I disconnected the negative terminal at the battery;
reconnected the ABS connector (Yaw rate connector, j-gate connector and all other connectors I recall are connected )
I tested resistance:

1. DLC pin 6 to neg battery post: 0 ohms;
2. DLC pin 14 to negative battery post: 0 ohms.

 

test result: 12/07/21:
I disconnected the negative terminal at the battery;
I disconnected the j-gate connector (all other connectors I recall are connected )
I tested resistance:

1. DLC pin 6 to neg battery post: 0 ohms;
2. DLC pin 14 to negative battery post: 0 ohms.

 

So I am going to reconnect the battery, listen to some Christmas songs, (get the sleigh out , buckle up my rein deer if I had some rein deer) see if this makes more sense, then re do more tests.

 

Per the series of tests starting with G239843p1, the flow has me (corroborating with you on above side tests and below series, plus, plus) on test G239843t6 (ASCCM):

I am presently looking for the ASCCM (left front, under wheel well, around the air suspension compressor area) here:

...still looking. as so far all I see here are the fog light, the 2 horns, and the air suspension air compressor.

 

That should narrow it down to the Instrument cluster, Air suspension module,Rear climate control module, DLC or wiring/connectors between them. Disconnect each one of these modules, one at a time, do not reconnect until the ground goes away and see where the short to ground disappears. If it does go away with a module check its connector pins between CAN+ and Ground and CAN- and Ground. Then we can go from there.

 

Ok.

Thanks again to the help of the fine ladies and gentlemen in this forum, and especially those who have repeatedly responded to this thread, where the car does not start(crank over) is stuck in park and lights are not illuminated in j-gate, I am better able to understand some of the the language of SDD and the manuals, and procedures, as well as be able to think through some of these problems which have turned this car (as per my Indi) into a project, a determine what to do next to repair problem(s).

I have been reviewing where I have had questioned my understanding of what the manual I have is saying, and the results of my tests performed.

I am continuing as advised.

 

Did you say project?
I've got one for you: get the car running with an aftermarket ECU, then put a manual transmission in it!
No more pesky J Gate problems!

Any way you go, I appreciate your dedication to this thing, it will be great once you get it all sorted. Good luck!