1994 90S: Test box socket 15

Tom Christiansen tomchr at ee.washington.edu
Mon Jul 14 22:32:48 EDT 2003


Folks,

I'm getting diagnostic code #2312 (engine temp sensor). The Bentley manual
suggests checking the resistance from terminal 1 in the temp sensor
connector to terminal 15 in the test box socket.

Does anyone know where this test box socket looks like and where it's located?

The temp sensor does seem to work. The resistance does change from 2.3kohm
at room temp to 300 ohm when dunked in boiled (not boiling) water. I
conveniently don't have a thermometer so I can't verify the test
temperatures but they should be close to the required 20C and 80C. I'll
probably replace the sensor on suspicion - if it's not too expensive.

I did check resistance from the temp sensor connector to ground. 0 ohms.
Beautiful! About 1200 ohm between the two terminals in the connector.


Thanks,

	Tom




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