Diagnosis & Repair

WARNING: This page is about a different car, the 2003 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Using hand-held tester or scan tool, read FREEZE FRAME data. Freeze frame data records engine conditions when malfunction is detected.

For diagnosis and repair procedure with Toyota hand-held tester or Enhanced OBD II scan tool, see Fig 1-Fig 3 .

For diagnosis and repair procedure with generic OBD II scan tool, see Fig 3-Fig 4 .

For ECM location, see Figure. For ECM connector view, see Figure. For testing of systems or components, see SYSTEM & COMPONENT TESTING - V6 & V8 article. For removal and installation of components, see REMOVAL & INSTALLATION - V6 & V8 article.

Fig 1: DTCs P0120, P0122, P0123, P0220, P0222, P0223 & P2135 Diagnostic Procedure Using Hand-Held Tester (Step 1)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: DTCs P0120, P0122, P0123, P0220, P0222, P0223 & P2135 Diagnostic Procedure Using Hand-Held Tester (Step 1 Cont. & Steps 2-3)

Fig 3: DTCs P0120, P0122, P0123, P0220, P0222, P0223 & P2135 Diagnostic Procedure Using Hand-Held Tester (Step 3 Cont. & Steps 4-5); Using OBD II Scan Tool (Step 1)

Fig 4: DTCs P0120, P0122, P0123, P0220, P0222, P0223 & P2135 Diagnostic Procedure Using OBD II Scan Tool (Step 1 Cont. & Steps 2-4)