Electrical System Problems of Toyota 4Runner

Toyota 4Runner owners have reported 231 electrical system related problems since 1996. Table 1 shows the 25 most common electrical system problems. The number one most common problem is related to the vehicle's electrical system (149 problems). The second most common problem is related to the vehicle's wiring (25 problems). For details of each of the problem category, use the links in the table.


Recently reported Electrical System problems of Toyota 4Runner

The Electrical System problem

Brakes- when reversing the brakes make loud grinding / squealing noise. I'm worried at times it will give out by not braking. Electrical- my display panel with the reverse camera turns off which at times can cause an accident.   Read details...

The Wiring problem

Rodent chewed main engine wiring harness   Read details...

The Dash Wiring problem

The contact owns a 2003 Toyota 4runner. The contact stated that while the vehicle was parked, the contact noted that there were cracks in the dashboard near the air vents. The vehicle was taken to a dealer where it was diagnosed that the dashboard was cracking and needed to be replaced.   Read details...

The Starter problem

The vehicle stalls, incosistently, but, on a frequent basis, at any given time, then will be fine for a long period of time. It eats batteries. I've had to replace the battery every year. A local automotive electrical specialist replaced the b+ cable from the battery to the starter, and the problem   Read details...

The Ignition Module problem

Warning lights began coming on around 60,000 miles or so. Started with the low tire pressure light & now has progressed to the vsc on, vsc off, abs warning lights being on all the time and the low tire pressure light is still on.   Read details...




4Runner Service Bulletins
4Runner Safety Recalls
4Runner Defect Investigations