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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1774 (Automatic Transaxle - AF33-5 (DTC P0562 - P0762)) >> Diagnostic Information & Procedures >> DTC P0563 >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 3:  This step tests the charging system voltage with a minimal load.
  2. 4:  This step obtains the ignition voltage measurement reported by the TCM.
DTC P0563

Step Action Values Yes No
1 Did you perform the Diagnostic System Check - Engine Controls? - Go to Step 2  Go to DIAGNOSTIC STARTING POINT -- ENGINE CONTROLS
2
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
    3. IMPORTANT:
    • Before clearing the DTC, use the scan tool in order to record the ECM and the TCM Failure Records. Using the Clear Eng./Trans. DTC Info function erases the Failure Records from the ECM and TCM.
    • Using the Clear Eng./Trans. DTC Info function erases stored DTCs in both the ECM and TCM.
  3. Record the Failure Records.
  4. Clear the DTC.
  5. Start the engine.
  6. Allow the engine to warm up to normal operating temperature.
Is the charge indicator light ON?		 - Go to Diagnostic System Check - Engine Electrical in Battery Go to Step 3 
3 
  1. Turn OFF all electrical accessories.
  2. Increase the engine speed to 2,000 RPM.
  3. Using the DMM, measure the voltage between the battery terminals. Record the measurement for reference.
Is the voltage within the specified range?		 12.5-14.5 V Go to Step 4  Go to Charging System Test in Battery
4 
  1. Leave the engine running.
  2. Observe the Ignition Voltage on the scan tool.
  3. Increase the engine speed to 2,000 RPM.
Is the difference between the voltage displayed on the scan tool and the voltage measurement in Step 4 greater than the specified value?		 1.0 V Go to Step 6  Go to Step 5 
5 Did P0563 reset? - Go to Step 6  Go to INTERMITTENTS
6 Replace the TCM. Refer to Transmission Control Module (TCM) Replacement .
Is the action complete?		 - Go to Step 7  -
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:
    • Start the engine.
    • Allow the engine to warm up to normal operating temperature.
    • Observe the Ignition Voltage on the scan tool.
    • TCM voltage must remain below 18 volts for 20 seconds to pass.
  4. Select Specific DTC.
  5. Enter DTC P0563.

Does the DTC reset?		 - Go to Step 2  Go to Step 8 
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 DEFINITIONS System OK
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