Diagnosis & Repair

WARNING: This page is about a different car, the 2003 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Read freeze frame data using hand-held tester or the OBD II scan tool, as freeze frame data records the engine conditions when a malfunction is detected. When trouble shooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio was lean or rich, etc. at the time of the malfunction.

For wiring diagram, see Fig 1. For diagnosis and repair with hand-held tester, see Fig 2 and Fig 3 . For diagnosis and repair with OBD II scan tool, see Fig 4 and Fig 5 .

Fig 1: DTCs P2120, P2122, P2123, P2125, P2127, P2128 & P2138 Wiring Diagram

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: DTCs P2120, P2122, P2123, P2125, P2127, P2128 & P2138 Diagnostic Procedure (Using Hand-Held Tester - Steps 1-3)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: DTCs P2120, P2122, P2123, P2125, P2127, P2128 & P2138 Diagnostic Procedure (Using Hand-Held Tester - Steps 4-5)

Fig 4: DTCs P2120, P2122. P2123, P2125, P2127, P2128 & P2138 Diagnostic Procedure (Using OBD II Scan Tool - Steps 1-3)

Fig 5: DTCs P2120, P2122. P2123, P2125, P2127, P2128 & P2138 Diagnostic Procedure (Using OBD II Scan Tool - Step 4)