Code No. P0606: Microcomputer Malfunction System

FUNCTION

The engine-A/T-ECU check whether the microcomputer, which performs the drive control of the throttle valve, is normal.

TROUBLE JUDGMENT

Check Conditions

Ignition switch is ON position.

Judgment Criteria

Malfunction of the microcomputer.

Check Conditions

Ignition switch is in ON position.
Battery voltage is 6.3 V or more.

Judgment Criteria

Throttle position sensor output voltage is 4.1 V or less.

or

Malfunction of the main microcomputer basic voltage.

Check Conditions

Ignition switch is ON position.
Throttle position sensor (main) output voltage is between 0.4 and 4.8 V.

Judgment Criteria

Malfunction of the throttle position sensor (main) input interface.

PROBABLE CAUSE

Failed the engine-A/T-ECU

DIAGNOSIS

STEP 1. M.U.T.-III diagnosis code

Reconfirmation of diagnosis code.

Q. Is the diagnosis code set?

	Replace engine-A/T-ECU.

	Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points ).