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EC-150 < COMPONENT DIAGNOSIS > [VQ35HR] P0037, P0038, P0057, P0058 HO2S2 HEATER P0037, P0038, P0057, P0058 HO2S2 HEATER Description INFOID:0000000000956538 SYSTEM DESCRIPTION The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed, OPERATION DTC Logic INFOID:0000000000956539 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at >> GO TO 2. 2. PERFORM DTC CONFIRMATION PROCEDURE With CONSULT-III Sensor Input signal to ECM ECM function Actuator Camshaft position sensor (PHASE) Engine speed Heated oxygen sensor 2 Heated oxygen sensor 2 heater Engine coolant temperature sensor Engine coolant temperature Mass air flow sensor Amount of intake air Engine speed rpm Heated oxygen sensor 2 heater Above 3,600 OFF Below 3,600 rpm after the following conditions are met. minute and at idle for 1 minute under no load ON DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0037 Heated oxygen sensor 2 The current amperage in the heated oxygen sen- • Harness or connectors (The heated oxygen sensor 2 heater • Heated oxygen sensor 2 heater P0038 Heated oxygen sensor 2 The current amperage in the heated oxygen sen- • Harness or connectors (The heated oxygen sensor 2 heater • Heated oxygen sensor 2 heater P0057 Heated oxygen sensor 2 The current amperage in the heated oxygen sen- • Harness or connectors (The heated oxygen sensor 2 heater • Heated oxygen sensor 2 heater P0058 Heated oxygen sensor 2 The current amperage in the heated oxygen sen- • Harness or connectors (The heated oxygen sensor 2 heater • Heated oxygen sensor 2 heater |