No Crank

Mechanic-first diagnostic path for no-crank complaints before replacing the starter or battery.

Use the symptom as the starting point, then confirm likely causes with checks, OBD context, and repair guides before estimating or replacing parts.

A no-crank complaint should be split into battery capacity, cable voltage drop, starter command, and starter motor behavior before parts are priced.

Common Sounds or Signs

• Single click when the key or start button is pressed
• Rapid clicking from low voltage
• No sound from the starter relay or starter
• Intermittent crank after sitting, heat soak, or cable movement

Quick Checks

• Load test the battery before condemning the starter
• Check voltage drop on positive and ground cable paths
• Verify starter relay, fuse, and crank command signal
• Inspect battery terminals, grounds, and starter connections

Common Causes

• Weak battery
• High-resistance battery cable or ground
• Starter motor or solenoid failure
• Starter relay, fuse, neutral safety, clutch switch, or command issue

Likely Diagnostic Paths

• If voltage falls low during crank request, battery and cable checks come before starter replacement.
• If battery voltage stays strong but the starter does not respond, inspect command signal, relay, fuse, and starter connections.
• If the starter clicks or works intermittently with heat, starter and cable voltage-drop checks move higher.

Diagnostic Path

Use these paths to decide what to inspect first, what failures overlap, and when the repair is ready to estimate.

Related OBD Codes

Move into code lookup when a scan tool confirms one of these faults, then use the code page to separate misfire, lean, EVAP, cooling, or charging causes before pricing the repair.

• P0562 - System voltage low

Recommended Next Repair Paths

Compare likely repair paths before replacing parts. Cost guides and estimates are strongest after symptoms, checks, code evidence, and repair-guide logic point in the same direction.