Corolla L4-1.8L (2ZR-FE) (2009)
Required Tools & Equipment
Repair Procedure
1. Using TIS Techstream check for stored DTCs.
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If BOTH DTC P2195 and P0138 are set proceed to step 2.
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If ONLY DTC P2195 is present diagnose per the Repair Manual for P2195 (see below).
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If ONLY DTC P0138 is present diagnose per the Repair Manual for P0138 (see below).
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If ONLY DTC P0031 is present diagnose per the Repair Manual for P0031 (see below).
P2195 Diagnosis:
Does the Air Fuel Ratio Sensor have an open or short on the A1A+ or A1A- wires? Refer to the Technical Information System (TIS) 2009 model
year Corolla or Matrix Repair Manual:
2009 Corolla / Matrix:
Engine/Hybrid System - Engine Control - "2ZR-FE Engine Control: SFI System: P2195, P2196: Oxygen (A/F) Sensor Signal Stuck Lean (Bank /
Sensor 1)"
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YES - Repair the harness and reevaluate the Air Fuel Ratio Sensor operation. Confirm the previous DTC(s) do NOT reset.
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NO - Proceed to step 2.
P0138 Diagnosis:
Inspect the Freeze Frame Data (FFD) values.
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If the AFS B1S1 voltage = 3.35 3.70V AND the 02S B152 = 0.70 0.90V the A/F sensor is suspect. Proceed to step 2.
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If the 02S B152 voltage is more than 1.10V and/or the 02S Impedance is more than 300 ohms at operating temperature the A/F sensor is