cel is lit, tach dont work,temp gauge dont work

2001 HONDA CIVIC
160 MILES
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IRONLOUWELD
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  • 1 POST
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.
Jun 23, 2012 at 3:23 PM
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KHLOW2008
  • ✓ASE Certified Mechanic
  • 41,814 POSTS
  • ASE Certified Mechanic
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.
Jun 23, 2012 at 5:05 PM
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