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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 947 (CRUISE CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC P1574CIRCUIT DESCRIPTION
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M

Circuit Description

2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Circuit Description
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2001 GMC Yukon XL, 2001 GMC Yukon, 2001 GMC Sierra, 2001 GMC Cab & Chassis Sierra, and 2001 GMC C3500 HD. However, it is still accessible from the selected car via links, so may be relevant.

This diagnostic test functions on the assumption that an ABS event and sudden decrease in a non-drive, wheel speed must be caused by a brake application. Non-drive wheel speed and stoplamp switch status are supplied to the PCM through serial data from the Electronic Brake Control Module (EBCM). If there is a 4.02 km/h (2.5 mph) or greater decrease of non-drive wheel speed in 0.4 seconds and a transition of the TCC or extended travel contacts of the TCC brake switch without a transition of the stop lamp brake switch, DTC P1574 is set.

RENDER: 1.0x

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