LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 166 (Automatic Transmission - CVT) >> Diagnosis And Testing >> Pinpoint Tests - Non OSC Equipped Vehicle >> Pinpoint Tests >> Pinpoint Test B: Transmission Fluid Temperature (TFT) Sensor

Pinpoint Test B: Transmission Fluid Temperature (TFT) Sensor

WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The transmission control module (TCM) is integrated into the mechatronic assembly. If installing a new transaxle or a mechatronic assembly, the TCM will need to be checked and recalibrated (reflashed) to the latest level calibration available.
  1. B1 ELECTRONIC DIAGNOSTICS 
    • Connect the scan tool.
    • Check to make sure the transaxle harness connector is fully seated, pins are fully engaged in connector and in good condition before proceeding.
    • Key in ON position.
    • Enter the following diagnostic mode on the scan tool: PIDs: Diagnostic Data Link, TFT.
    • Does the vehicle enter TFT PID? 
    1. Yes  : GO to B2.
    2. No  : REPEAT procedure to enter PID. If vehicle did not enter PID, REFER to the INTRODUCTION - GASOLINE article .
  2. B2 TEMPERATURE SIGNAL CHECK 
    • Key in ON position.
    • Enter the following diagnostic mode on the scan tool: TFT.
    • Monitor the TFT PID. The temperature value should be within -55°C to 175°C (-65°F to 347°F).
    • Is the TFT voltage within specified range? 
    1. Yes  : GO to B3.
    2. No  : INSTALL a new mechatronic assembly.
  3. B3 WARM-UP/COOL-DOWN CYCLE 
    • While monitoring PID: TFT, carry out the following test: If transaxle is cold, run transaxle to warm it up. If transaxle is warm, allow transaxle to cool down.
    • Does the TFT PIDs increase as the transaxle is warmed up or decrease as the transaxle is cooled. 
    1. Yes  : CLEAR all DTCs. ROAD TEST to verify if concern is still present. Concern could be intermittent. If concern is still present or reappears, INSTALL a new mechatronic assembly.
    2. No  : INSTALL a new mechatronic assembly. (Refer to the note preceding this pinpoint test.)
scientia non olet · About LEMON Manuals