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Diagnostic Trouble Code: 159
Diagnostic Trouble Code Name: Mass Air Flow (MAF) sensor out of calibration
Vehicle Make: Ford
Vehicle Model: Falcon (EF)
Diagnostic Code Entered By: ZerOne
Diagnostic Code Entered On: Wed Oct 06, 2010 11:00 pm
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Please Note: The DTC Information provided has been randomly generated.
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Diagnostic Trouble Code Description:
Clutch Pressure Control Solenoid 3 Control Circuit High
Voltage
Possible Sensor Faults
TCM
Possible Related Diagnostic Trouble Codes
DTC P0969-P0971
Circuit / System Description
The clutch pressure?(PC) solenoid?3 is part of the control solenoid (w/body and TCM) valve assembly which has no serviceable parts. The normally high clutch PC solenoid?3 regulates and directs the clutch PC solenoid?3 oil pressure to the 4-5-6 clutch regulator valve and 4-5-6 clutch boost valve. Increasing clutch PC solenoid?3 oil pressure increases oil pressure to the 4-5-6 clutch assembly. The TCM varies the current to the PC solenoid?3 through a low side driver. Decreasing the current to the clutch PC solenoid?3 increases clutch PC solenoid?3 oil pressure by closing OFF the solenoid exhaust port. Increasing the current to the clutch PC solenoid?3, decreases clutch PC solenoid?3 oil pressure by opening the solenoid exhaust port. Clutch PC solenoid?3 power is supplied by the TCM through a high side driver?(HSD). The HSD protects the circuit and components from excessive current flow. If excessive current flow is detected, the HSD will turn OFF. When the fault is corrected the HSD will reset.
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