How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask jrloar Your Own Question

jrloar
jrloar, ASE Master Cert
Category: Cadillac
Satisfied Customers: 292
Experience:  ASE Master Certification
23900771
Type Your Cadillac Question Here...
jrloar is online now
A new question is answered every 9 seconds

1993 Cadillac Fleetwood Brougham: Control Module..lite..jumper..relay

Customer Question

I have a 1993 Cadillac Fleetwood Brougham,rear wheel drive. I have a repair shop and have diagnosed it to have a defective Central Control Module. The "pass key fault" lite stays on (most of the time), can jumper across the starter enable relay to start. Sometimes it will stay running,other times start and die out. Is there a way to bypass module? Part has been discontinued,located one but too $$.I've been told there is a way to bypass this module.
Submitted: 2 years ago.
Category: Cadillac
Expert:  jrloar replied 2 years ago.

Could be a broken wire in the ignition column/switch area...TROUBLE SHOOTING PASS-KEY II(R) 1. Check ignition key for cracked, dirty, or coated resistor pellet. Ensure ignition key is free from excess plastic around resistor pellet contacts. Check ignition key using Interrogator (J 35628). If key code window shows "E", replace key. Check key pellet sensing contacts in ignition lock cylinder by looking into key opening. If contacts are damaged or not Silver, replace lock cylinder. 2. Check instrument panel fuses No. 24 and 33. If PASS-Key II(R) system is intermittent, ensure connector to Central Control Module (CCM) is tight and terminals are clean. Also check CCM grounds. If theft deterrent relay must be replaced, check Yellow wire to starter solenoid for a short to ground. 3. To check contacts to key and wires in steering column, disconnect connector near base of steering column. Measure resistance back to key at this connector while turning and adjusting steering wheel. If there is a change or intermittent reading, replace lock cylinder and attached steering column wires. See Fig. 1.
Do the self test and write down and post the codes.
ENTERING & EXITING DIAGNOSTICS Using Heater & Air Conditioning Control Panel 1. The Heater and Air Conditioning (H-A/C) control panel is used to display all vehicle modules Diagnostic Trouble Codes (DTCs). To enter diagnostic mode, simultaneously press OFF button and TEMP button on H-A/C control panel. H-A/C control panel will illuminate for 5 seconds, then display "-00". Press Fan Up/Down button to increase or decrease displayed system ("-01"=CCM, "-02"=HVAC, "-03"=SIR, "-04"=ABS/TCS). Select "-01" for CCM DTCs. 2. Press OUT TEMP button to display DTCs. While DTCs are being displayed, press fan up/down button to return display to system selected. If H-A/C control panel displays "--", H- A/C control is not receiving serial data because of a fault with the serial data line. If H-A/C control panel displays "00" after selecting "-01" (CCM DTCs), no codes are present. 3. If more than one code is present, codes will display beginning with the lowest current code to the highest current code, followed by the lowest history code, then the highest history code. Codes will cycle sequentially 16 seconds at a time until diagnostic mode is exited or ignition is turned off. To exit diagnostic mode, press any function button (except OFF button and either DEFOG button).
And click here to test the wires in the column and fix!
http://www.youtube.com/watch?v=KWwSzY6Vmpg

Customer: replied 2 years ago.
When I posted this problem I explained that I had replaced the lock cylinder and key. Went through all disgnostics related. All I need to know is how to bypass the Central Control Module. That is all I need. If you can't answer that then I will try elsewhere.
Expert:  jrloar replied 2 years ago.
graphic
Expert:  jrloar replied 2 years ago.
graphic


This is the correct drawing you need. This starter inable relay is what you need to bypass. This will allow the car to start
Customer: replied 2 years ago.
I have already done this. One more time, all I need is to know how to bypass the CCM located in trunk. If you can't answer this I will check elsewhere. THANK YOU
Expert:  jrloar replied 2 years ago.
That is how you bypass it! The CCM simply controls the starter enable relay. Its as simple as that........ However I think this is what you are asking?

Connect the full bypass as following:

  • RED : Splice into CCM Connector C1, pin B9 (PNK)
  • BLK : Splice into CCM Connector C2 pin C1 (BLK/WHT) and cut and attach to Connector C2, pin D13 (YEL/BLK) on the vehicle side, not toward the CCM connector.
  • DRK GRN : Cut and attach on CCM Connector C1 pin B1 (DK BLUE) on the vehicle side, not toward the CCM connector.
  • YEL (or LT-GRN): Leave unconnected (if present)
  • BLU : Leave unconnected (if present)

Expert:  jrloar replied 2 years ago.
you can also view this video and it will give you another option...

http://www.youtube.com/watch?v=y9QQrrRxrxI
or
http://www.youtube.com/watch?feature=endscreen&NR=1&v=_oBHpwwcsRA
Customer: replied 2 years ago.
wiring colors and connectors don't match my vehicle. the picture shows bcm in dash, this is the ccm located in trunk. going to check elsewhere on internet.
Expert:  jrloar replied 2 years ago.
I can only give you what the books tell me. The connectors are universal...

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
< Last | Next >
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
  • He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here. Diane Dallas, TX
 
 
 

Meet The Experts:

 
 
 
  • Dave Nova

    Cadillac Technician

    Satisfied Customers:

    1469
    ASE Master Certification. GM World Class Certification
< Last | Next >
  • http://ww2.justanswer.com/uploads/DT/dt69nova/2012-6-15_234154_pic1.64x64.jpg Dave Nova's Avatar

    Dave Nova

    Cadillac Technician

    Satisfied Customers:

    1469
    ASE Master Certification. GM World Class Certification
  • http://ww2.justanswer.com/uploads/JF/JFN1/2011-2-26_33039_180754101501129867381533152761315265045893127711n.64x64.jpg Jerry Newton's Avatar

    Jerry Newton

    Cadillac Technician

    Satisfied Customers:

    1181
    ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.
  • http://ww2.justanswer.com/uploads/PE/peterpete190/2012-2-24_1274_20120215135406.64x64.jpg Pete's Avatar

    Pete

    Cadillac Technician

    Satisfied Customers:

    1133
    15 years Cadillac experience as a technician.
  • http://ww2.justanswer.com/uploads/testedtuff/2009-09-26_170108_pictures.jpg John's Avatar

    John

    ASE Certified Technician

    Satisfied Customers:

    941
    ASE CERTIFICATIONS A1-A8 & L1 / 40 YEARS AUTOMOTIVE EXPERIENCE
  • http://ww2.justanswer.com/uploads/joecamel90/2008-11-13_03615_head_shot.jpg George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    595
    ASE Master Tech 15+ Years
  • http://ww2.justanswer.com/uploads/MO/molurch/2012-6-6_214526_500.64x64.png Don 'Mo Lurch''s Avatar

    Don 'Mo Lurch'

    Cadillac Technician

    Satisfied Customers:

    462
    GM, Cadillac Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.
  • http://ww2.justanswer.com/uploads/tsmodie/2009-6-10_144056_tim.jpg Tim Mohr's Avatar

    Tim Mohr

    ASE MASTER TECH

    Satisfied Customers:

    385
    30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL