STEP 1. Check the right bank heated oxygen sensor (rear).
(1) Disconnect right bank heated oxygen sensor (rear) connector and connect test harness special tool, MD998464, to the connector on the right bank heated oxygen sensor (rear) side.
(2) Measure the resistance between heated oxygen sensor connector terminal power supply line and terminal OHRR line.
(3) Standard value: 11 - 18 Ω [at 20°C (68°F)]
Is the measured resistance between 4.5 and 8.0 ohms [at 20°C (68°F)]?
Go to Step 2. Replace the right bank heated oxygen sensor (rear). Then go to Step 3.