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Home >> Cadillac >> 2007 >> Escalade RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 753 (Automatic Transmission - 4L80-E/4L85-E - DTC P0218 To P2771) >> DTC P0218 >> Test Description

Test Description

WARNING: This page is about a different car, the 2006 GMC Sierra, 2006 GMC Cab & Chassis Sierra, 2006 Chevrolet Silverado, and 2006 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic table.

  1. 4:  This step inspects for air restrictions and loss of transmission fluid flow, causing an extremely high TFT.
DTC P0218

Step Action Yes No
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
    3. IMPORTANT: Before clearing the DTCs, use the scan tool in order to record the Freeze Frame and Failure Records. Using the Clear Info function erases the Failure Records from the PCM.
  3. Record the Failure Records.
  4. Clear the DTCs.
Was DTC P0711 also set?		 Go to DTC P0711  Go to Step 3 
3 Perform the Transmission Fluid Checking Procedure. Refer to Transmission Fluid Checking Procedure .
Did you perform the Transmission Fluid Checking Procedure?		 Go to Step 4  Go to Transmission Fluid Checking Procedure
4
  1. Inspect the engine cooling system for the following conditions:
    • Air flow restrictions
    • Air flow blockage
    • System fluid level and condition
    • Debris in the radiator
  2. Inspect the transmission cooling system for the following conditions:
Did you find and correct the condition?		 Go to Step 7  Go to Step 5 
5 Perform the Line Pressure Check Procedure. Refer to Line Pressure Check Procedure .
Did you find and correct the condition?		 Go to Step 7  Go to Step 6 
6 Inspect the torque converter stator for damage. Refer to Torque Converter Diagnosis Procedure .
Did you find and correct the condition?		 Go to Step 7  Go to Symptoms - Automatic Transmission
7 Perform the following procedure in order to verify the repair:
  1. Select DTC.
  2. Select Clear Info.
  3. Operate the vehicle under the following conditions.
    • Turn ON the ignition, with the engine OFF.
    • The TFT must be less than 129°C (265°F) for at least 5 seconds.
  4. Select Specific DTC.
  5. Enter DTC P0218.

Has the test run and passed?		 Go to Step 8  Go to Step 2 
8 With the scan tool, observe the stored information, capture info and DTC info.
Does the scan tool display any DTCs that you have not diagnosed?		 Go to Diagnostic Trouble Code (DTC) List - Vehicle System OK
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