Oxygen Sensor Heater (Service Code 67, Equipped Models)
Oxygen Sensor Heater Removal/Installation
The oxygen sensor heater is built in the oxygen sensor.
So, the heater itself cannot be removed. Remove the oxy-
gen sensor (see Oxygen Sensor Removal (Equipped Mod-
els) in the Electrical System chapter).
Oxygen Sensor Heater Resistance Inspection
Turn the ignition switch OFF.
Right Lower Side Cover (see Right Side Cover Removal
in the Frame chapter)
Oxygen Sensor Connector [A]
Connect a digital meter [A] to the terminals in each oxygen
sensor lead connector [B].
Measure the oxygen sensor heater resistance.
Oxygen Sensor Heater Resistance
Connections: W lead [C] ←→ W lead [D]
Standard: 6.7 ∼ 10.5 Ω at 20° (68°F)
If the reading is out of the standard, replace the sensor.
If the reading is within the standard, check the power
source voltage (see Oxygen Sensor Heater Power
Source Voltage Inspection).
FUEL SYSTEM (DFI) 3-81