DTC P0130 HEATED OXYGEN SENSOR 1 (FRONT) (CIRCUIT); Overall Function Check; Wiring Diagram
EF & EC-7102wiring diagramWiring diagram YEF938 fuse-rating row partially obscured but readable as 15A/40A/30A/40A/30A/30A; connectors labeled F12, F57, E27 (Battery), E29 (ECM Relay), E33 (Fusible Link and Fuse Box).
CG10, CGA3
Overall Function Check
Use this procedure to check the overall function of the heated oxygen sensor 1 (front) circuit. During this check, a 1st trip DTC might not be confirmed.
With GST
- 1Start engine and warm it up to normal operating temperature.
- 2Set voltmeter probes between ECM terminal 12 [Heated oxygen sensor 1 (front) signal] and engine ground.
- 3Check the following with engine speed held at 2,000 rpm constant under no load. - The voltage fluctuates between 0 to 0.3V and 0.6 to 1.0V more than three times within 10 seconds. 1 time: 0 - 0.3V → 0.6 - 1.0V → 0 - 0.3V 2 times: 0 - 0.3V → 0.6 - 1.0V → 0 - 0.3V → 0.6 - 1.0V → 0 - 0.3V - The voltage does not remain in the range of 0.4 - 0.6V.
- 4If NG, go to "Diagnostic Procedure", EC-7103.
Wiring Diagram
See also
EC-7103