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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> 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 G: Turbine Shaft Speed (TSS) Sensor

Pinpoint Test G: Turbine Shaft Speed (TSS) 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. G1 ELECTRONIC DIAGNOSTICS 
    • Check to make sure the transaxle harness connector is fully seated, pins are fully engaged in the connector and in good condition before proceeding.
    • Connect the scan tool.
    • Key in ON position.
    • Key in START position.
    • With the vehicle in NEUTRAL and PARK at idle, monitor PIDs. (TR), (TSS_SRC), Pulley A (SPD_PULA) Speed and (RPMTCM).
    • The turbine shaft speed should be equal to engine speed, and pulley A (primary) speed should be at zero.
    • Is the turbine speed equal to engine speed, and pulley A (primary) speed at zero? 
    1. Yes  : System functionally correctly. Intermittent fault.
    2. No  : GO to G2.
  2. G2 ELECTRONIC DIAGNOSTICS 
    • With the vehicle in DRIVE and REVERSE at idle, monitor PIDs. (TR), (TSS_SRC), Pulley A (SPD_PULA) Speed and (RPMTCM).
    • The turbine shaft speed should be equal to Pulley A (primary) speed.
    • Is the turbine speed equal to pulley A (primary) speed? 
    1. Yes  : System functionally correctly.
    2. No  : INSTALL a new mechatronic assembly. (Refer to the note preceding this pinpoint test.)
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