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Home >> GMC >> 2005 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 207 (Automatic Transmission - 5L40-E/5L50-E - (DTC P0115 To DTC P0756)) >> DTC P0563 >> Test Description

Test Description

WARNING: This page is about a different car, the 2005 Cadillac STS. 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. 4:  This step tests the charging system voltage with a minimal load.
  2. 5:  This step obtains the ignition voltage measurement reported by the TCM.
DTC P0563

Step Action Value(s) Yes No
1 Did you perform the Diagnostic System Check - Vehicle? - Go to Step 2  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
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 Info function erases the Failure Records from the ECM and TCM.
    • Using the Clear Info function erases stored DTCs in both the ECM and TCM.
  3. Record the Failure Records.
Did you record a Failure Record for DTC P0560?		 - Go to DTC P0560 in Engine Electrical Go to Step 3 
3
  1. Clear the DTC.
  2. Start the engine.
  3. Allow the engine to warm up to normal operating temperature.
Is the charge indicator light ON?		 - Go to Charging System Test in Engine Electrical Go to Step 4 
4 
  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 5  Go to Charging System Test in Engine Electrical
5 
  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 7  Go to Step 6 
6 Did P0563 reset? - Go to Step 7  Go to Diagnostic Trouble Code (DTC) List - Vehicle in Vehicle DTC Information
7 Replace the TCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.
Is the action complete?		 - Go to Step 8  -
8 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 12 seconds.
  4. Select Specific DTC.
  5. Enter DTC P0563.

Has the test run and passed?		 - Go to Step 9  Go to Step 2 
9 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 in Vehicle DTC Information System OK
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