Electrical System Related Problems of the 2002 Toyota Sienna

Table 1 shows nine common electrical system related problems of the 2002 Toyota Sienna. The number one most common problem is related to the electrical system (17 problems). The second most common problem is related to the underhood wiring (two problems).


Recently reported Electrical System problems of the 2002 Toyota Sienna

The Electrical System problem

Dear sir, on April 2026, I need to do the semiannual smog check. Right now, I face dtc p0420 error code and I can't pass the smog check inspection. Note that I don't have the engine light on indicating the a/m error code. Only my obd2 shows the error dtc code p0420.   Read details...

The Underhood Wiring problem

Consumer was traveling about 40mph on highway comming from dealership with a brand new vehicle. Smoke was comming from engine department. Then, the fiames started coming from hood. Vehicle burned down to the ground and was totaled. There were no injuries. Dealership was aware of problerm.   Read details...

The Computer Failure problem

2002 Toyota Sienna van. The vehicle computer will sporadically trigger the check engine light to come on based on no actual cause. This occurs around every 5,000 miles. It is typical for this computer failure to begin after 75,000 miles on this year of Sienna and Toyota's recall only covers   Read details...


Electrical System related problems in other Toyota Sienna model year vehicles:



Sienna Service Bulletins
Sienna Safety Recalls
Sienna Defect Investigations