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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 2000 (Automatic Transmission - 4T45-E - DTC P0973 To DTC P2797) >> DTC P0973 or P0974 (Non-Hybrid) >> Component Testing (Non-Hybrid)

Component Testing (Non-Hybrid)

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the automatic transmission (AT) inline 20-way connector at the transmission.
  2. Install the J 44152  on the transmission side of the AT inline 20-way connector.
  3. Test for 19-31 ohms of resistance between the control terminal A and the ignition terminal E of the transmission.
    • If not within the specified range, test the circuits for a short to ground or an open/high resistance. If a circuit is shorted or open replace the internal transmission harness, if the circuits test normal, replace the 2-3 shift solenoid.
  4. Test for infinite resistance between each terminal and the transmission housing/case.
    • If not the specified value, test the circuits for a short to ground or an open/high resistance. If a circuit is shorted replace the internal transmission harness, if the circuits test normal, replace the 2-3 shift solenoid.
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