Matrix FWD L4-2.4L (2AZ-FE) (2009)
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Wiring Harness: All Technical Service Bulletins
Engine Controls - MIL ON/Multiple DTC's Set
T-SB-0379-08
November 26, 2008
M.I.L. "ON" DTC P0101, P0121, P0171, P0172, P035 #, P223 #
Service Category
Engine/Hybrid System
Section
Engine Control
Market
USA
Applicability
Introduction
Some 2009 model year Corolla and Matrix vehicles may exhibit a M.I.L. "ON" DTC condition with one or more of the following Diagnostic Trouble
Codes (DTCs):
^
P0101 Mass Air Flow Circuit Range / Performance Problem
^
P0121 Throttle / Pedal Position Sensor/Switch "A" Circuit Range/Performance Problem
^
P0171 System Too Lean
^
P0172 System Too Rich
^
P035 # Ignition Coil " # " Primary / Secondary Circuit
^
P2237 Oxygen (A/F) Sensor Pumping Current Circuit / Open
^
P2238 Oxygen (A/F) Sensor Pumping Current Circuit Low
^
P2239 Oxygen (A/F) Sensor Pumping Current Circuit High
An improved engine wire harness has been developed to address this condition. Use the following repair procedure to diagnose and repair customer
complaint vehicles.
Production Change Information
