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 MANUALSCHEVROLET2019BLAZER PREMIER, FWDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCRUISE CONTROL SYSTEMSDIAGNOSTIC INFORMATION AND PROCEDURESDTC P1553CIRCUIT/SYSTEM VERIFICATION
2019 Chevrolet Blazer Premier, FWD
Circuit/System Verification
2019 Chevrolet Blazer Premier, FWDSECTION Circuit/System Verification
- Ignition - On/Vehicle - In Service Mode
- Verify DTC P1553 is not set.
- If the DTC is set
- Replace the appropriate component:
- {If equipped} K14 Distance Sensing Cruise Control Module
- {If equipped} K124 Active Safety Control Module
- Go to next step: If the DTC is not set
- All OK.
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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.