Component Inspection

Component Inspection

1. CHECK AIR FUEL RATIO (A/F) SENSOR 1 HEATER

   1. Turn ignition switch OFF.

   2. Disconnect air fuel ratio (A/F) sensor 1 harness connector.

   3. Check resistance between A/F sensor 1 terminals as per the following.

      A/F sensor 1		Condition		Resistance
      +	−
      Terminal
      3	4	Temperature	25°C (77°F)	1.80 – 2.44 Ω
      	1			Not existed
      	2
      4	1
      	2

   Is the inspection result normal?

   YES >>

   INSPECTION END

   NO >>

   GO TO 2.

2. REPLACE A/F SENSOR 1

   Replace A/F sensor 1. Refer to Exploded View.

   CAUTION:

   • Discard any A/F sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; use a new one.

   • Before installing new A/F sensor, clean exhaust system threads.

   >>

   INSPECTION END