|
|
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER EC-153 < SERVICE INFORMATION > [VQ35DE] C D E F G H I J K L M A EC N P O DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER Description INFOID:0000000001325965 SYSTEM DESCRIPTION The ECM performs ON/OFF duty control of the air fuel ratio (A/F) sensor 1 heater corresponding to the engine CONSULT-III Reference Value in Data Monitor Mode INFOID:0000000001325966 Specification data are reference values. On Board Diagnosis Logic INFOID:0000000001325967 DTC Confirmation Procedure INFOID:0000000001325968 NOTE: Start engine and let it idle for at least 10 seconds. 2. Check 1st trip DTC. 3. If 1st trip DTC is detected, go to Sensor Input Signal to ECM ECM function Actuator Camshaft position sensor (PHASE) Engine speed Air fuel ratio (A/F) sensor 1 Air fuel ratio (A/F) sensor 1 heater Mass air flow sensor Amount of intake air MONITOR ITEM CONDITION SPECIFICATION A/F S1 HTR(B1) • Engine: After warming up, idle the engine 0 - 100% DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0031 Air fuel ratio (A/F) sensor The current amperage in the heated air fuel ratio (A/ • Harness or connectors [Air fuel ratio (A/F) sensor 1 heater cir- • Air fuel ratio (A/F) sensor 1 heater P0051 P0032 Air fuel ratio (A/F) sensor The current amperage in the heated air fuel ratio (A/ • Harness or connectors [Air fuel ratio (A/F) sensor 1 heater cir- • Air fuel ratio (A/F) sensor 1 heater P0052 |