Cherryokee

I applied CRC White Lithium spray grease yesterday afternoon to a number of hinge and latch locations. A spritz was also issued into the driver's door key-lock cylinder. Today it starts, runs 3 seconds then quits. The chime is sounded and the SKIM indicator remains illuminated but does not flash. All gauges, windows, etc. still function normally therefore I can assume this is not a power issue and must be due to grease contamination to the driver door key-lock switch. Do my reasons/assumptions seem logical? Can I get a confirmation? Is there a work-around, simple remedy or must I do door surgery?

Cherryokee

Correction - Gauges dead all-along even before engine quits but they pass the cluster test (depressed trip odo button while key on/off 3 cycles). Ran the scan and got P1686 & P1687. Also measured 12V at F7 and F22 of Junction Block.

Will pull driver door trim panel now to attempt by-pass of driver door cylinder lock switch. Fingers crossed...

SteveMongr

Codes P1686 & 87 refer to the SKIM module. Could be a connection or wire harness issue.
SKIM module is located on steering column. http://wjjeeps.com/modules.htm

" P1686. No SKIM BUS Messages Received. No CCD/J1850 messages received from the Smart Key Immobilizer Module (SKIM).

P1687 No MIC BUS Message. No CCD/J1850 messages received from the Mechanical Instrument Cluster (MIC) Module." http://wjjeeps.com/faultcodes.htm

Cherryokee

Update: Before removing driver door trim, I paused to rethink my lubrication actions from yesterday. I walked around and opened/closed (slammed actually - half in frustration) doors, hood and liftgate/window, cycled latches and locks. Additionally, and I wish I had done this as a separate follow-on step, but I wiggled the connectors at the PCM. She started and ran without quitting. There was no more SKIM indicator but the CEL was lit this time. I had cleared the previous P1686 & P1687 and this time I read a P1698 (no CCD at TCM - or something like that) so I cleared that too because there was never an issue with that nor reason to think one exists since it drove trouble-free only yesterday. Restart was without issue, fully warmed-up, cycled through through the PRNDL and still no CEL. Now I'm hitting the road with my fingers-crossed and my scan tool in my kit. Nagging doubts will remain but at least I may have a work-around...

And thank you SteveMongr, I only just saw your message as I was typing this last novella. I think I muddied-up a switch with the spray grease. Which one? I don't know. If it happens again then I'll do more step-by-step method to isolate and report on it.

Cherryokee

I thought I had it licked but it came back just in-time to make me late for a job interview. Luckily I had a plan-B for that with my ailing but driveable Subaru. Will start new thread so this problem can be detailed in the hope of helping others. Thread title will be "DTC P1686, P1687 AND P1698". Looking for more insight - especially on DTC P1698 because I think I introduced it as a secondary condition to the initial DTC P1686 & P1687...

SteveMongr

All three codes have the same thing in common, communication failure between components.
P1698 is a failure to communicate with TCM, transmission control module. A secondary cause for the P1698 is an aftermarket remote start system which would interfere with communication to PCM, power control module.

There could be components not fully connected/bad connections, faulty grounds, damaged wire harness, or previous owner messed with wiring installing remote start or other add-on that involves the SKIM system.
Following links will familiarize you with locations and function of electronic components, also control modules.

"P1698 (M). No CCD/J1850 Message From TCM
No CCD/J1850 messages received from the electronic transmission control module (EATX) or the Asian transmission controller.

P1698 (M) No CCD/J1850 Message From PCM
Bus communication failure to PCM. A “Companion DTC” was set in both the ECM and PCM. May be caused by after market remote starter. Remove after market remote starter. This code can be set as the remote starter is activated and the pcm receives ignition run voltage and the tcm does not.
http://wjjeeps.com/faultcodes.htm
http://wjjeeps.com/pdf/wj_component_locations.pdf
http://wjjeeps.com/modules.htm

Cherryokee

SteveMongr,

Looks like I'm not the only early-bird on the site. I just returned from my sunrise walk and I see you were on at 6:40AM. Beautiful morning in Boston. Hope the same for you in the Carolinas ... nothin' could be finer!

Thank you for this intel...helpful stuff all. It should go a long way to minimize my head-banging.

FYI, I started all this as a new thread.

Cherryokee (Tom)