Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 203 (CRUISE CONTROL SYSTEM)DIAGNOSTIC TESTSDTC P1564: POWERTRAIN CONTROL MODULE DETECTS RAPID ACCELERATIONTESTING
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8
DTC P1564: Powertrain Control Module Detects Rapid Acceleration: Testing
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Testing
WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
- Perform CRUISE CONTROL DIAGNOSTIC SYSTEM CHECK . Once the test has been performed, go to next step.
- If any other DTCs also set, go to the other DTCs first. If no other DTCs set, or after the other DTCs have been cleared, go to next step.
- Since this DTC will set when a sudden rate of increase in vehicle speed occurs (i.e., vehicle speed sensing problem or traveling on icy roads) while the cruise is engaged, check with the customer to verify the conditions under which the DTC was set. If the driver's actions or road conditions caused this DTC to set, go to next step. If not, see Diagnostic Aids .
- Explain system operation to the customer and clear this DTC.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.