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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1699 (Automatic Transmission - 4T45-E - DTC P0218 To DTC P0961) >> DTC P0711, P0712, or P0713 (Non-Hybrid) >> Circuit/System Testing (Non-Hybrid)

Circuit/System 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.
    IMPORTANT: Additional DTCs may set when disconnecting the automatic transmission (AT) inline 20-way connector.
  1. Ignition OFF, disconnect the AT harness connector at the transmission.
  2. Install the J 44152  on the engine side of the AT inline 20-way connector.
  3. Ignition OFF, test for less than 10 ohm between the low reference circuit terminal M and ground.
    • If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the TCM.
  4. Ignition ON, verify the scan tool Trans. Fluid Temp. parameter is at -40°C (-40°F).
    • If not the specified value, test the signal circuit terminal L for a short to ground. If the circuit tests normal, replace the TCM.
  5. Install a 3A fused jumper wire between the signal circuit terminal L and the low reference circuit terminal M. Verify the scan tool Trans. Fluid Temp. parameter is greater than 100°C (212°F).
    • If less than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the TCM.
  6. If all circuits test normal, test the internal transmission harness and the TFT sensor.
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