Yaris L4-1.5L (1NZ-FE) (2007)
Wiring Harness: Customer Interest
Electrical - MIL ON/Multiple DTC's Set
T-SB-0344-08
November 5, 2008
M.I.L. "ON" DTC P010#, P0121, P0125, P0172, P035#, P2237, or P2238
Service Category
Engine/Hybrid System
Section
Engine Control
Market
USA
Applicability
Introduction
Some 2007 - 2008 model year Yaris vehicles may exhibit a M.I.L. "ON" DTC condition with one of the following Diagnostic Trouble Codes (DTCs):
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P0101 - Mass Air Flow Circuit Range / Performance Problem
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P0102 - Mass Air Flow Circuit Low Input
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P0103 - Mass Air Flow Circuit High Input
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P0121 - Throttle / Pedal Position Sensor/Switch "A" Circuit Range/Performance Problem
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P0125 - Insufficient Coolant Temperature for Closed Loop Fuel Control
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P0172 - System Too Rich
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P035# - Ignition Coil "#" Primary / Secondary Circuit
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P2237 - Oxygen (A/F) Sensor Pumping Current Circuit / Open
-
P2238 - Oxygen (A/F) Sensor Pumping Current Circuit Low
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
This TSB applies to vehicles produced BEFORE the Production Change Effective VINs shown above.