Nissan Micra K11 silhouetteK11

DTC P0134 HEATED OXYGEN SENSOR 1 (FRONT) (PLAUSIBILITY); Overall Function Check; Wiring Diagram

EF & EC-7122wiring diagram

Wiring diagram YEF938 reused from P0130/P0133 with same pin map and fuse ratings.

Continued from EF & EC-7121
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

  1. 1
    Start engine and warm it up to normal operating temperature.
  2. 2
    Set voltmeter probes between ECM terminal 12 [Heated oxygen sensor 1 (front) signal] and engine ground.
  3. 3
    Check 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.
  4. 4
    If NG, go to "Diagnostic Procedure", EC-7123.

Wiring Diagram

Support our work!

See also

EC-7123

Search Manual

Search pages, specs, and procedures