Inspect Airfuel Ratio Sensor Heater Resistance

Component Side:

Sensor 1

A1A-

A1A-

A1A+

(a) Disconnect the B7 A/F sensor connector.

(b) Measure the resistance of the A/F sensor connector. Standard resistance

Tester Connections

Specified Conditions

1 (HA1A) - 2 (+B)

1.8 n to 3.4 n at 20°C (68°F)

1 (HA1A) - 4 (A1A-)

10 kn or higher

(c) Reconnect the A/F sensor connector.

REPLACE AIR-FUEL RATIO SENSOR

REPLACE AIR-FUEL RATIO SENSOR

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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Responses

  • bernd
    How much to fix air/fuel ratio sensor for toyota rav4?
    8 years ago
  • Aston
    How to replace the air fuel ratio sensor toyota rav4?
    7 years ago
  • rowan
    How to inspect air fuel sensor?
    3 months ago

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