Diagnostic Test Mode 2

Heated Oxygen Sensor Test Table:

Malfunction Lamp Operation:

In this mode, the MALFUNCTION INDICATOR LAMP and RED LED display the condition of the fuel mixture (lean or rich) which is monitored by the heated oxygen sensor.
If two heated oxygen sensors (right side and left side) are fitted on the engine, the left side heated oxygen sensor monitor operates first, when selecting this mode.

HOW TO CHANGE MONITOR FROM LEFT SIDE (Right side) TO RIGHT SIDE (Left side)
1. Turn diagnostic test mode selector on ECCS Control Module fully clockwise.
2. Wait at least 2 seconds.
3. Turn diagnostic test mode selector on ECCS Control Module fully counterclockwise.

NOTE: These procedures should be carried out when the engine is running.