Technical Service Bulletin 031199 — 1999 TOYOTA SIENNA
UNKNOWN OR OTHER
Bulletin Details
| TSB ID | 031199 |
| Manufacturer | |
| Vehicle | 1999 TOYOTA SIENNA |
| Component | UNKNOWN OR OTHER |
| Communication Date |
Bulletin Summary
BRIEF INFORMATION REGARDING DIAGNOSTIC TROUBLE CODE P0420 INDICATING A POSSIBLE CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD CONDITION. *TT
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 1999 TOYOTA SIENNA
4612
ENGINE AND ENGINE COOLING
00300R
STRUCTURE
BO02401
SEATS:MID/REAR ASSEMBLY
305
VISIBILITY:WINDSHIELD WIPER/WASHER
BO01400
VISIBILITY:POWER WINDOW DEVICES AND CONTROLS
BO02099
SEATS
EL00599
AIR BAGS:FRONTAL
BO00799
EXTERIOR LIGHTING:HEADLIGHTS
EG00299
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
B000399
STRUCTURE:BODY:DOOR