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EC-234 < DTC/CIRCUIT DIAGNOSIS > [VQ35DE] P014C, P014D, P014E, P014F, P015A, P015B, P015C, P015D A/F SENSOR 1 P014C, P014D, P014E, P014F, P015A, P015B, P015C, P015D A/F SENSOR Description INFOID:0000000009719970 The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sen- Therefore, the A/F sensor 1 is able to indicate air fuel ratio by this ° C (1,472 ° F). DTC Logic INFOID:0000000009719971 DTC DETECTION LOGIC To judge malfunctions, this diagnosis measures response time of the A/F signal computed by ECM from the A/ DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always perform the following procedure Turn ignition switch OFF and wait at least 10 seconds. 2. Turn ignition switch ON. 3. Turn ignition switch OFF and wait at least 10 seconds. JMBIA0112GB PBIB3354E DTC No. Trouble diagnosis name DTC detecting condition Possible Cause P014C Air fuel ratio (A/F) sensor 1 • The response time of a A/F sensor 1 signal de- lays more than the specified time computed by • Harness or connectors (The A/F sensor 1 circuit is open or • A/F sensor 1 P014D P015A Air fuel ratio (A/F) sensor 1 P015B P014E Air fuel ratio (A/F) sensor 1 P014F P015C Air fuel ratio (A/F) sensor 1 P015D |