With Manufacturer's Scan Tool

Precautions for Operation
1. When battery positive voltage is low, no detection of failure is possible. Be sure to check the battery for voltage and other conditions before starting the test.
2. Diagnostic items are erased if the battery or the engine control module connector is disconnected. Do not disconnect the battery before the diagnostic result is completely read.
3. Be sure to connect or disconnect the scan tool with the ignition switch turned off. If the scan tool is disconnected while the ignition switch is at the ON position, an ABS diagnostic trouble code may be stored and the ABS warning lamp may thus illuminate.

CAUTION: Connection and disconnection of the scan tool should always be made with the ignition switch in the OFF position.

Procedure
1. Connect the scan tool to the data link connector.
2. Turn the ignition switch to ON.
3. Take a reading of the diagnostic output.
4. Repair the problem location while referring to the diagnostic chart.
5. After turning the ignition switch once to OFF, turn it back to ON.
6. Erase the diagnostic trouble code.
7. Check again that the condition is normal.

Diagnosis by DIAGNOSTIC TEST MODE II (Increased Sensitivity)
1. Using the scan tool, changeover the diagnostic test mode of the Engine Control Module to DIAGNOSTIC TEST MODE II. (INCREASED SENSITIVITY)
2. Carry out a road test.
3. Read the diagnostic trouble code by the same procedure as listed above and repair the malfunctioning part.
4. After turning the ignition switch once to OFF, turn it back to ON.

NOTE: Turning the ignition switch to OFF will cause the Engine Control Module to changeover the diagnostic test module from the diagnostic test mode II to the diagnostic test mode I.

5. Erase the diagnostic trouble code.