DIAGNOSIS AND TESTING > DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND
PINPOINT TESTS - 3.7L DURATEC (227KW 301PS) > PINPOINT TESTS > PINPOINT
TEST B : TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR > PINPOINT TEST B
: TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR
B1 CHECK TFT INPUT SIGNAL
Ignition OFF.
Disconnect: Transmission Vehicle Harness C1575
Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
Connect the diagnostic tool.
Ignition ON.
Enter the following mode on the diagnostic scan tool: TFT PIDs TFT and TFTV.
Does the TFT PID display -40 °C (-40 °F) and the TFTV PID display 4.96 to 5.10 volts?
Yes | GO to B2 |
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No | REPAIR the circuit. |
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B2 CHECK TFT SIGNAL INPUT CIRCUIT FOR VOLTAGE
Measure:
Positive Lead | Measurement / Action | Negative Lead |
C1575-6 | Ground |
Is the voltage between 4.8 and 5.1 volts?
Yes | GO to B3 |
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No | INSPECT and REPAIR the transmission open circuit. If an open circuit is not found, INSTALL a new PCM, REFER to: Powertrain Control Module (PCM) . PROGRAM the PCM with the latest calibration level. PERFORM the Solenoid Body Strategy Data Download procedure. REFER to: Transmission Strategy Download . |
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B3 CHECK TFT SIGNAL RETURN CIRCUIT
Original technical text and illustrations, formatted as HTML. Follow the engine, transmission, equipment, model and year specified in the source. Import and layout checks do not establish applicability to every 2015–2017 Mustang. About this collection.