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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 797 (Cruise Control System) >> Diagnostic Information and Procedures >> DTC P1574 >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

DTC P1574 indicates the stop lamp switch signal to the EBCM or the EBCM's ability to send the stop lamp switch signal to the PCM has failed. Refer to ABS/TCS DTC's for diagnosis of the stop lamp switch signal and the EBCM.

DTC P1574

Step Action Yes No
1 Did you perform the Cruise Control Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Cruise Control 
2
  1. Connect the scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. Retrieve the DTCs from the EBCM.
Are there any DTCs that begin with a"C" also set?		 Go to Diagnostic Trouble Code (DTC) List Go to Step 3 
3 Repair the short to voltage on the stop lamp switch signal circuit.
Did you find and correct the condition?		 Go to Step 4  -
4
  1. Use the scan tool to clear the DTC (s).
  2. Operate the vehicle within the conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?		 Go to Step 2  System OK
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