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Home >> Suzuki >> 2009 >> Equator Premium >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Control System (VQ40DE) - (4 Of 5)) >> DTC P0130, P0150: A/F Sensor 1 >> On Board Diagnosis Logic
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On Board Diagnosis Logic

WARNING: This page is about a different variant/trim than selected.

To judge the malfunctions, the diagnosis checks that the A/F signal computed by ECM from the air fuel ratio (A/F) sensor 1 signal fluctuates according to fuel feedback control.

DTC DETECTING CONDITION AND POSSIBLE CAUSE

DTC No. Trouble diagnosis name DTC detecting condition Possible Cause
P0130
0130 (Bank 1)
Air fuel ratio (A/F) sensor 1 circuit A) The A/F signal computed by ECM from the A/F sensor 1 signal is constantly in a range other than approx. 2.2V.
  • Harness or connectors (The A/F sensor 1 circuit is open or shorted.)
  • Air fuel ratio (A/F) sensor 1
P0150
0150 (Bank 2)
B) The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 2.2V.