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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 114 (Engine Control System Self-Diagnostics - 4-CYL (Except PZEV)) >> Diagnostic Tests >> DTC P2237, DTC P2238, DTC P2239, DTC P2251, DTC P2252 & DTC P2253 >> Diagnosis & Repair

Diagnosis & Repair

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For wiring diagram, see DTC P0031: OXYGEN SENSOR HEATER CONTROL CIRCUIT LOW (BANK NO. 1 SENSOR NO. 1) & DTC P0032: OXYGEN SENSOR HEATER CONTROL CIRCUIT HIGH (BANK NO. 1 SENSOR NO. 1) . For diagnosis and repair, see Fig 1 and Fig 2 .

Fig 1: DTCs P2237-P2239 & P2251-P2253 Diagnostic Procedure (Steps 1-2)
G00234771Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: DTCs P2237-P2239 & P2251-P2253 Diagnostic Procedure (Step 3)
G00234772Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002