Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2005TAURUS SEL, 4D SEDANREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1652 (ENGINE CONTROLS - PINPOINT TESTS - (HYBRID) - FAULT CODE INDEX, PINPOINT TESTS A - DN)PINPOINT TEST DL: CYLINDER HEAD TEMPERATURE (CHT) SENSORTEST PROCEDURE
2005 Ford Taurus SEL, 4D Sedan
Test Procedure
2005 Ford Taurus SEL, 4D SedanSECTION Test Procedure
WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- DL1 DTCS P0116, P0119, P0128, P1285, P1288, P1289, P1290 AND P1299: CHECK FOR SELF-TEST DTCS
Are any of the following DTCs present during PCM or TCM self-test: P0116, P0119, P0128, P1285, P1288, P1289, P1290 or P1299?
Yes No For continuous memory DTC P0116, GO to DL24.
For continuous memory DTC P0119, GO to DL15.
For continuous memory DTC P0128, GO to DL22.
For DTC P1285, GO to DL18.
For DTC P1288, GO to DL2.
For KOEO and KOER DTCs P1289 or P1290, GO to DL7.
For continuous memory DTCs P1289 or P1290, GO to DL15.
For KOER and continuous memory DTC P1299, GO to DL21.Unable to duplicate or identify the fault at this time.
The concern is elsewhere. RETURN to SYMPTOM CHARTS for further direction. - DL2 SELF-TEST DTC P1288: CHECK THE COOLING SYSTEM WARNING: TO AVOID PERSONAL INJURY DO NOT UNSCREW THE COOLANT PRESSURE RELIEF CAP WHILE THE ENGINE IS OPERATING OR HOT. THE COOLING SYSTEM IS UNDER PRESSURE. STEAM AND HOT LIQUID CAN COME OUT FORCEFULLY WHEN THE CAP IS LOOSENED SLIGHTLY.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.