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Home >> Mercury >> 2005 >> Montego Base, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - CVT >> Diagnosis And Testing >> Pinpoint Tests - Non OSC Equipped Vehicle >> Pinpoint Tests >> Pinpoint Test H: Transmission Control Module Signal
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Pinpoint Test H: Transmission Control Module Signal

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. H1 TRANSMISSION CONTROL MODULE SIGNAL OUT OF RANGE 
    • Check to make sure the transaxle harness connector is fully seated, pins are fully engaged in connector and in good condition before proceeding.
    • Connect the scan tool.
    • Key in ON position.
    • Enter the following diagnostic mode on the scan tool: PID: Ignition Voltage (D10B).
    • Is the ignition voltage between 11 and 15 volts. 
    1. Yes  : GO to H2.
    2. No  : REPAIR the open or short circuit harness side.
  2. H2 TRANSMISSION CONTROL MODULE SIGNAL OUT OF RANGE 
    • Connect the scan tool.
    • Key in ON position.
    • Enter the following diagnostic mode on the scan tool: PID: VPWRTCM.
    • Is the operating voltage between 11 and 15 volts. 
    1. Yes  : System operating correctly.
    2. No  : Fix other DTCs first. Charge the vehicle battery.
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