1995 Buick Park Avenue cruise control

Tiny
JIMMIE D HORTON
  • MEMBER
  • 1995 BUICK PARK AVENUE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 101,000 MILES
At 65 mph, cruise control shut off and would not come back on. Mechanic checked all switches, replaced ECM, checked continuity in all wiring. Mechanic stated that the ECM was not sending a signal to the Servo.
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Monday, September 21st, 2009 AT 9:40 AM

5 Replies

Tiny
KHLOW2008
  • EXPERT
Hi jimmie d horton,

Thank you for the donation.

Is there any trouble codes set in the PCM?
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Tuesday, September 22nd, 2009 AT 8:27 AM
Tiny
JIMMIE D HORTON
  • MEMBER
Thank you, KHLow2008. For your response. My mechanic said there were no trouble codes.
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Tuesday, September 22nd, 2009 AT 9:10 AM
Tiny
KHLOW2008
  • EXPERT
If all items are checked to be functioning correctly, then the PCM has to be substituted to test if that is the cause as it is part of the cruise control system. Any missing signal from the PCM would cause the cruise control to stop working.

One of the thing to test would be to get the freeze frame data to understand the situation when it occurs. That might show if any item malfunctioned without causing any trouble codes to be recorded when the cruise control failed.
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Tuesday, September 22nd, 2009 AT 9:31 AM
Tiny
JIMMIE D HORTON
  • MEMBER
Thanks again for your help. I will forward this info to my mechanic
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Tuesday, September 22nd, 2009 AT 10:20 AM
Tiny
KHLOW2008
  • EXPERT
You are welcomed.

Thank you for using 2carpros.
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Tuesday, September 22nd, 2009 AT 10:33 AM

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