TTT069822

Tech Tip T-TT-0698-22
June 20, 2022
Subject
Market
MIL "on" w/DTC(s) P042000/43000 - Catalyst
Deterioration
USA
Service Category
Section
Vehicle Interior
Meter/Gauge/Display
Applicability
17-22MY Highlander 17-20MY Sienna
APPLICABLE VEHICLES
2017-2022
Highlander
2017-2020
Sienna
CONDITION
Some 17-22MY Highlander and 17-20MY Sienna vehicles may experience a MIL ON condition with
DTC(s) P042000, and/or P043000. This issue could involve deteriorated catalyst material from the
bank 1 or bank 2 catalytic converter. Please see table below for affected vehicles.
Model Year
17-19MY
Model
Highlander
17-20MY
Sienna
17-19MY
Highlander
17-20MY
Sienna
20-22MY
Part Number
17150-0P330
Part Description
MANIFOLD ASSY,
EXHAUST, LH
17140-0P330
MANIFOLD,
EXHAUST, RH
17150-0P430
MANIFOLD ASSY,
EXHAUST, LH
17140-0P430
MANIFOLD ASSY,
EXHAUST, RH
Highlander
DTC(s) related to this condition
P042000 – Catalyst system efficiency below threshold bank 1
P043000 – Catalyst system efficiency below threshold bank 2
Condition Description
Deteriorated
Catalyst Material
Expires on
Ver. 4.0 01/01/2022 T
06/20/2023
© 2022, Toyota Motor Sales, USA
Page 1 of 2
Tech Tip T-TT-0698-22
June 20, 2022
Subject
Market
MIL "on" w/DTC(s) P042000/43000 - Catalyst
Deterioration
USA
Applicability
Example of
debris
RECOMMENDATIONS
If this condition is identified, please take detailed pictures of the untouched catalyst as well as any
debris or abnormal materials suspected to have caused the catalyst substrate to deteriorate. Please
create a TAS case providing this information and contact TAS for further instructions. If it is a weekend
or a holiday, continue with diagnosis and repair and contact TAS on the next available business day.
Please hold all parts for recovery to help with further investigation including all foreign objects found
inside the exhaust manifold
LINK REFERENCES
This Tech Tip does not contain any link references
Expires on
Ver. 4.0 01/01/2022 T
06/20/2023
© 2022, Toyota Motor Sales, USA
Page 2 of 2