TEMP SENSOR

1993 CHEVROLET CHEYENNE
180,000 MILES • 6 CYL • 2WD • AUTOMATIC
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ROBIN WALLING
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CODE 15 COMES BACK ON WHEN SENSOR REPLACED RESET THE TROUBLE CODE. WIRES CHECKED
May 26, 2011 at 10:13 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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WRENCHTECH
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Just looking at the wires isn't testing them. All wiring has to be tested for shorts and opens and voltage drop.
May 26, 2011 at 10:27 PM
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ROBIN WALLING
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WIRES HAVE NO SHORTS OR OPENS. HAVE 5.2 VOLTS TO TEMP SENSOR
May 29, 2011 at 5:30 PM
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WRENCHTECH
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And you determined this how?
May 29, 2011 at 6:44 PM
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ROBIN WALLING
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CHECK SENSOR GROUND,CHECKED GREEN WIRE FOR SHORTS WITH FLUKE METER NO SHORTS.CHECKED VOKTAGE WITH IGN TURNED ON ENG NOT RUNNING HAVE 5.2 VOLTS.CHECKED VOLTAGE WITH ENGINE RUNNING HAVE 5.2 VOLTS.VOLTAGE CHECKED THROUGH THE SESOR WIRES BACK AN GREEN WIRES
May 31, 2011 at 12:55 AM
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WRENCHTECH
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You're going to have to use a scan tool to read sensor data. The code is for low temp so it's likely an open circuit somewhere. It could be in the ECM but I doubt it.
May 31, 2011 at 1:01 AM