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 MANUALSFORD2010TAURUS SEL, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - PINPOINT TEST KN: VARIABLE SPEED ELECTRIC COOLING FAN THROUGH PINPOINT TEST Z: INTERMITTENT - (EXCEPT DIESEL & HYBRID)PINPOINT TEST QB: KEEP ALIVE POWER (KAPWR)TEST PROCEDURE
2010 Ford Taurus SEL, FWD
Test Procedure
2010 Ford Taurus SEL, FWDSECTION Test Procedure
- QB1 DIAGNOSTIC TROUBLE CODES (DTCS) P0603, P1633 AND P2610: PRELIMINARY DIAGNOSIS NOTE: The DTC P2610 will not reset after the DTCs are cleared. If the DTC P2610 is retrieved before the DTCs are cleared, GO to QB6.
- Carry out a visual inspection.
- Retrieve and record all DTCs.
- Record the freeze frame data.
- Clear all the DTCs.
- Carry out the self-test.
Are DTCs P0603, P1633 or P2610 present?
Yes No For DTCs P0603 and P1633, GO to QB2.
For DTC P2610, GO to QB6.Unable to duplicate the condition. CHECK for a loose connection, and damaged or corroded terminals. WIGGLE the harness attempting to recreate the concern. REPAIR as necessary. REFER to SYMPTOM CHARTS , GO to PINPOINT TEST QT , if a driveability concern exists. - QB2 DTCS P0603 AND P1633: CHECK THE 12-VOLT BATTERY TERMINALS NOTE: If the KAPWR is interrupted to the PCM when a breakout box is installed or the battery is disconnected, DTC P0603/P1633 can be generated on the first power-up.
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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.