P1721

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Definition of check engine code P1721:

Chrysler/Dodge/Jeep:

Line Pressure Sensor Circuit (old)

Citroen/Peugeot:

Gear 1 Incorrect Ratio

Daewoo:

CONTROL RELAY

Ford:

Gear 1 Incorrect Ratio

Lincoln:

Gear 1 Incorrect Ratio

Mercedes:

Gear 1 Incorrect Ratio

Mercury:

Gear 1 Incorrect Ratio

Oldsmobile:

Gear 1 Incorrect Ratio

Volkswagen/Audi:

Wheel Speed Signal 3 Range / Performance

Volvo:

Wheel Speed Signal 3 Range / Performance

GM:

Solenoid “B” Controlled Clutch Not Engaged

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