Climate Control Diagnostic Trouble Code Number Inspection
DIAGNOSTIC TROUBLE CODE NUMBER INSPECTION1. Remove the dashboard under cover (passenger side).
2. Remove the glove compartment.
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. (See Erasing Past Failure 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 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 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.