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 MANUALSCHEVROLET2014EXPRESS 2500 BASE, VAN CARGO, 6.6L ENG VIN LREPAIR AND DIAGNOSISENGINE MECHANICALSTARTERBATTERY, CHARGING SYSTEM AND STARTING SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURES (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)STARTER SOLENOID DOES NOT CLICK (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)CIRCUIT/SYSTEM VERIFICATION (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)
2014 Chevrolet Express 2500 Base, Van Cargo, 6.6L Eng VIN L
Circuit/System Verification (Battery, Charging System And Starting System)
2014 Chevrolet Express 2500 Base, Van Cargo, 6.6L Eng VIN LSECTION Circuit/System Verification (Battery, Charging System And Starting System)
- Ignition ON, verify that no crank relay, theft deterrent or automatic transmission DTCs are set that would cause the ECM not to enable engine starting.
- If DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Ignition ON, observe the scan tool BCM Current Power Mode parameter. Place 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 ECM PNP Switch and TCM Park/Neutral parameters display Park/Neutral.
- If the TCM parameter does not indicate Park/Neutral. Refer to Range Selector Displays Incorrect Range , for the 4L60/4L65/4L70-E transmission or Transmission Internal Mode Switch Logic for the 6L45/6L50/6L80/6L90 transmission.
- If the ECM Park/Neutral parameter does not indicate Park/Neutral. Refer to ECM Park Switch Circuit Malfunction.
- Transmission range selector in park or neutral, attempt to start the vehicle. The crank relay should click and the engine should begin cranking.
- If the crank relay does not click or the engine does not crank, refer to Crank Relay Circuit Malfunction.
- 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.