Diagnostic Trouble Codes Check/Clear

WARNING: This page is about a different car, the 2004 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

INDICATOR CHECK
1. Turn the ignition switch to the ON position while pressing the A/C control AUTO switch and R/F (Recirculation/Fresh) switch simultaneously.
  
  Fig 1: Locating A/C Control AUTO & R/F Switches
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check that the indicators come on and go off 4 times in succession at 1 second intervals.
HINT:
- After the indicator check is completed, the system enters the DTC mode automatically.
- Press the "OFF" switch to cancel the check mode.
Fig 2: Checking Illumination Of Indicators
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Blinking Pattern Of Indicator
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DTC CHECK (SENSOR CHECK)
1. After the indicator check is completed, the system enters the DTC check mode automatically.
2. Read the codes displayed on the panel. Refer to the list of codes on DTC 11 ROOM TEMPERATURE SENSOR CIRCUIT when reading the codes. (Trouble codes are output on the temperature display.)
  
  Fig 4: Identifying DTC Check Mode
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. If a slower display is desired, press the front DEF switch and change the display in the step operation. Each time the temperature up switch is pressed, the display changes by 1 step.
Fig 5: Locating Front Defogger Switch
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CLEARING DTC
1. There are two methods for clearing the diagnostic trouble codes.
  1. Method "1"
    During sensor check, press the "DEF" switch and "Rr. DEF" switch at the same time.
  2. Method "2"
    Pull out the ECU-B fuse in the driver side J/B for 20 seconds or longer to clear the DTC memory.
Fig 6: Identifying ECU-B Fuse In Driver Side J/B
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002