CEL IS LIT, TACH DONT WORK,TEMP GAUGE DONT WORK

  • Tiny
  • ironlouweld
  • 2001 Honda Civic
  • 160 miles

Engine cant rev above 2500rpm, ac dont work. Scanner unable to communicate to pcm when I disconnect the battery negative cable to clear the code, reconnect the negative cable and start the car everything works fine for a few seconds then you hear a click from behind the glove box and everything is back to not working agajn. Any knowledge on fixing thjs issue would be greatly appreciated.

Saturday, June 23rd, 2012 AT 3:23 PM

1 Answer

  • Tiny
  • KHLow2008
  • Expert
  • 41,976 posts

If the scan tool cannot communicate, check for battery voltage at pin # 16 and ensure terminal # 4 has good ground. A DVOM is required.

Bridge terminal # 4 with # 9 and see if the MIL flashes trouble codes when ignition is turned on.

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Saturday, June 23rd, 2012 AT 5:05 PM

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