Reading and Clearing Diagnostic Trouble Codes
DIAGNOSTIC TROUBLE CODE NUMBER INSPECTION
1. Remove the dashboard under cover (passenger side). Dashboard Under Cover Removal/Installation
2. Remove the glove compartment. Service and Repair
3. Short the check connector terminal A to the ground using a jumper wire.
4. Expose the solar radiation sensor to natural sunlight.
NOTE:
- If natural sunlight is not shone on the solar radiation sensor, the climate control unit determines a malfunction and indicates DTC "02, 04".
5. Turn the ignition switch to ON position.
6. Read DTCs on the information display. Carry out DTC inspection. (present and past failure indication modes)
- When the system is normal, "00" will be indicated on the display.
- If any of the diagnostic trouble codes are indicated, carry out troubleshooting according to the code.
7. After completion of repairs, erase all diagnostic trouble code(s) from memory.
8. Remove the jumper wire.
Present Failure Indication Mode
- The on-board diagnostic function display the present failure indication mode directly after start up. In present failure indication mode, present failures in the control system circuits (open, short circuits) are detected, and the DTCs are indicated on the information display.
- If a diagnostic trouble code is indicated, refer to the following diagnostic trouble code table and inspect the appropriate system.
Past Failure Indication Mode
- While in present failure indication mode, press the A/C switch to change to the past failure indication mode. In past failure indication mode, past failures (intermittent problems) in the input sensor circuits (open, short circuits) are shorted, and the DTCs are indicated on the information display.
- If a diagnostic trouble code is indicated, refer to the following diagnostic trouble code table and inspect the appropriate system. (Disconnections and short circuits are memorized in the same system even if either occurs only once.)
- If the A/C switch is pressed again while in past failure indication mode, the on-board diagnostic function will return to present failure indication mode.
Erasing Past Failure Memory
- When DTCs are displayed in the past failure indication mode, they remain in the memory after the failed systems are corrected. Consequently, the next time the past failure indication mode is used, the same past failure DTCs will be indicated on the information display. Therefore, erase the past failure memory after correcting all failed systems. To clear the past malfunction memory, press the AUTO and REC switches on the front climate control unit at the same time. Then "01" is displayed. If cleared, "00" will be indicated.
Output Device Operation Check Mode
Inspection
1. Warm up the engine.
2. Turn the ignition switch to LOCK position.
3. Remove the dashboard under cover (passenger side). Dashboard Under Cover Removal/Installation
4. Remove the glove compartment. Service and Repair
5. Short the check connector terminal A to the ground using a jumper wire.
6. Expose the solar radiation sensor to natural sunlight.
NOTE:
- If natural sunlight is not shone on the solar radiation sensor, the climate control unit determines a malfunction and indicates DTC "02, 04".
7. Start the engine.
8. Press the AUTO switch.
9. Verify the operation of the each output device when changing steps by pressing the REC switch, and referring to the output device operation check chart.
- If not as specified, inspect the malfunctioning system.
NOTE:
- If the AUTO switch is pressed again, the on-board diagnostic function will return to present failure indication mode.
10. Turn the ignition switch to LOCK position to end the output device operation check mode.
Output device operation check table
Step 1-Step 3:
Step 4-Step 5:
*
Shown on the information display according to step.