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740 Instrument Cluster wiring 700

posted by  Volvodad on  Mon Nov 23 23:32 CST 2015
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last visit: Thu Oct 23 16:18 CST 2014
[RELATED]

Disconnect the wiring from the gauge. Use your multimeter to check cold resistance at the sender terminal to engine ground. Then check the disconnected wiring at gauge between your Yellow and Black wires. Should be the same. Check again after a drive has heated the oil up - minimum 10 mi. You can then call Egauges and ask if those numbers seem right. If sender resistances are ok you must have either no 12V to gauge (easy to check) or a dead gauge, or the wrong sender resistance range for that gauge.
--
Bob: Son's XC70, my 83 244DL, 89 745 (Chev LT-1 V8), 98 S90 (recently sold) and 2010 XC60. Also '77 MGB and four old motorcycles






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