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Component Testing

WARNING: This page is about a different variant/trim than selected.
NOTE:

You must perform the Circuit/System Testing first.

K71 Transmission Control Module

  1. Ignition Off
  2. Disconnect the electrical connector: B296A Transmission Pulley Speed Sensor - Primary
    3. NOTE:

    Testing for steps 4 to 6 is performed on the component: B296A Transmission Pulley Speed Sensor - Primary Diagnostic Test Probe = J-35615-18

  3. Connect the red lead of the J-38522  variable signal generator to the sensor signal circuit terminal 2. Connect the black lead of the J-38522  variable signal generator to the low reference circuit terminal 1. Plug the power cord of the J-38522  variable signal generator into the cigar lighter.
  4. Set the J-38522  variable signal generator to 12 volts, the Frequency to 30, and the Duty Cycle to 50%.
  5. Ignition - On/Vehicle - In Service Mode
  6. Verify the scan tool parameter: Primary Pulley Speed is between the following specified ranges as you rotate the frequency switch through the various selections.
    • If not in the specified range - Replace the component: K71 Transmission Control Module
    • Go to next step: If in the specified range
  7. All OK.
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