Checks, in order
- Battery voltageResting voltage should be about 12.4 V or more. Under 12 V, charge and load-test the battery before chasing anything else.easy $ · under about $50
- Terminals and groundsClean and tighten both battery terminals, the engine ground and the starter cable. Corrosion can mimic a dead battery.easy $ · under about $50
- Shift to NeutralTry starting in Neutral. A worn neutral start switch can block cranking in Park.easy $ · under about $50
- Security lightWatch the security indicator when you turn the key. A flashing light that stays on can mean the immobilizer is not recognizing the key.easy $ · under about $50
- StarterA single click with a good battery points to the starter or its solenoid. Bench test it or swap it.medium $$ · about $50 to $500
Applies to: 2003 to 2009 4Runner with the 4.0L 1GR-FE V6 and the 4.7L 2UZ-FE V8, 2WD and 4WD. Engine specific items are labeled, and some issues apply mainly to early model years.
Tools and parts for these checks
Links below are Amazon affiliate links: as an Amazon Associate, toyotadata earns from qualifying purchases, at no extra cost to you. Confirm fitment for your exact truck before you order.
| ITEM | USED FOR | BUY |
|---|---|---|
| Digital multimeter | Voltage, ground and continuity checks | Shop on Amazon |
| Battery load tester | Testing the battery under load before replacing parts | Shop on Amazon |
| Battery terminal cleaning brush | Cleaning corroded terminals and cable ends | Shop on Amazon |
The same problem on other Toyotas
- 3rd Gen Tacoma (2016–2023): Turn the key or press the button: click or nothing, engine won't crank
- 1st Gen Tacoma (1995.5–2004): Turn the key: click or nothing, engine won't crank
- 5th Gen 4Runner (2010–2024): Turn the key: click or nothing, engine won't crank
- 3rd Gen 4Runner (1996–2002): Turn the key: click or nothing, engine won't crank
- FJ Cruiser (2007–2014): Turn the key: click or nothing, engine won't crank
- 100 Series Land Cruiser / Lexus LX 470 (1998–2007): Turn the key: click or nothing, engine won't crank
- 80 Series Land Cruiser (1991–1997): Turn the key: click or nothing, engine won't crank
More 4th Gen 4Runner problems
- V6 losing coolant, cold start misfire or overheating (early 4.0L) (Engine)
- Frame rust or rusted suspension mounts (Frame & Body)
- Clunk, knock or wandering from the front suspension (Steering & Suspension)
- Sticky, melting or cracked dashboard (Body & Electrical)
- V8 timing belt service: when is it due? (Engine)
- Ticking or diesel-like noise on cold start (Engine)
All 16 4th Gen 4Runner symptoms in the interactive troubleshooter →
General guidance from owner experience. Confirm torque specs, fluid capacities and procedures in the factory service manual. Brakes, steering and anything structural: if in doubt, have a qualified shop inspect it before driving.