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 MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISENGINE MECHANICALSTARTERBATTERY, CHARGING SYSTEM AND STARTING SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESSTARTER SOLENOID DOES NOT CLICKCIRCUIT/SYSTEM VERIFICATION
2013 Buick Regal Turbo Premium, Standard Trans
Circuit/System Verification
2013 Buick Regal Turbo Premium, Standard TransSECTION Circuit/System Verification
- Ignition ON, verify that no ignition, starter relay, brake pedal position sensor, immobilizer, or automatic transmission DTCs are set that would cause the ECM to disable engine starting.
- If DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Ignition ON, observe the scan tool BCM 5 V Ignition Switch parameter. Place the ignition switch in the crank position, the parameter should display Crank Request.
- If not the specified value, refer to Power Mode Mismatch .
- Transmission range selector in park , verify the scan tool TCM Internal Mode Switch parameters display Park.
- If the TCM Internal Mode Switch parameter does not indicate Park. Refer to Transmission Internal Mode Switch Logic .
- Transmission in park or neutral, attempt to start the vehicle. The crank relay should click and the engine should begin cranking.
- If the KR27 starter relay does not click or the engine does not crank, refer to Circuit/System Testing .
- Ignition ON, observe the scan tool ECM Crankshaft Position Sensor Active Counter is not incrementing.
- If the Crankshaft Position Sensor Active Counter is incrementing, replace the Crankshaft Position Sensor.
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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.