DIAGNOSTIC TROUBLE CODE NUMBER INSPECTION

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1. Remove the following parts: (R.H.D.)

  (1) Decoration panel (Driver side) (See DECORATION PANEL REMOVAL/INSTALLATION.)

  (2) Dashboard under cover (Driver side) (See DASHBOARD UNDER COVER REMOVAL/INSTALLATION.)

  (3) Side wall (Driver side) (See SIDE WALL REMOVAL/INSTALLATION.)

  (4) Console panel (Driver side) (See CONSOLE PANEL REMOVAL/INSTALLATION.)

2. Remove the following parts: (L.H.D.)

  (1) Dashboard under cover (passenger side) (See DASHBOARD UNDER COVER REMOVAL/INSTALLATION.)

  (2) Glove compartment (See GLOVE COMPARTMENT REMOVAL/INSTALLATION.)

3. Short the check connector terminal A to the ground using a jumper wire.

R.H.D.

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L.H.D.

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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 following diagnostic trouble code table and inspect the appropriate system.

Past Failure Indication Mode

• While in present failure indication mode, press the AUTO 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.

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  ― 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.

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DTC Table

X :Applicable
— :Not applicable

No. | Output pattern | Malfunction location | Detected condition | Memory function | Page
--- | --- | --- | --- | --- | ---
02 |  | Solar radiation sensor (present malfunction) | Solar radiation sensor (RH) circuit short | — | (See DTC 02.)
04 |  | Solar radiation sensor (LH) circuit short | — | (See DTC 04.)
06 |  | Cabin temperature sensor (present malfunction) | Cabin temperature sensor circuit open/short circuit | — | (See DTC 06.)
07 |  | Cabin temperature sensor (past malfunction) | When an open/short has occurred in the cabin temperature sensor circuit 1 time or more in the past | X | (See DTC 07.)
10 |  | Front evaporator temperature sensor (present malfunction) | Front evaporator temperature sensor circuit open/short circuit | — | (See DTC 10.)
11 |  | Front evaporator temperature sensor (past malfunction) | When an open/short has occurred in the front evaporator temperature sensor circuit 1 time or more in the past | X | (See DTC 11.)
12 |  | Ambient temperature sensor (present malfunction) | Ambient temperature sensor circuit open/short circuit | — | (See DTC 12.)
13 |  | Ambient temperature sensor (past malfunction) | When an open/short has occurred in the ambient temperature sensor circuit 1 time or more in the past | X | (See DTC 13.)
18 |  | Driver-side front air mix actuator (potentiometer) (present malfunction)*1 Passenger-side front air mix actuator (potentiometer) (present malfunction)*2 | Driver-side front air mix actuator (potentiometer) circuit open/short circuit*1 Passenger-side front air mix actuator (potentiometer) circuit open/short circuit*2 | — | (See DTC 18.)
19 |  | Driver-side front air mix actuator (potentiometer) (past malfunction)*1 Passenger-side front air mix actuator (potentiometer) (past malfunction)*2 | When an open/short has occurred in the driver-side front air mix actuator (potentiometer) circuit 1 time or more in the past*1 When an open/short has occurred in the passenger-side front air mix actuator (potentiometer) circuit 1 time or more in the past*2 | X | (See DTC 19.)
21 |  | Front airflow mode actuator (potentiometer) (present malfunction) | Front airflow mode actuator (potentiometer) circuit open/short circuit | — | (See DTC 21.)
22 |  | Front airflow mode actuator (potentiometer) (past malfunction) | When an open/short has occurred in the front airflow mode actuator (potentiometer) circuit 1 time or more in the past | X | (See DTC 22.)
37 |  | Passenger-side front air mix actuator (potentiometer) (present malfunction)*1 Driver-side front air mix actuator (potentiometer) (present malfunction)*2 | Passenger- side front air mix actuator (potentiometer) circuit open/short circuit*1 Driver-side front air mix actuator (potentiometer) circuit open/short circuit*2 | — | (See DTC 37.)
38 |  | Passenger-side front air mix actuator (potentiometer) (past malfunction)*1 Driver-side front air mix actuator (potentiometer) (past malfunction)*2 | When an open/short has occurred in the passenger-side front air mix actuator (potentiometer) circuit 1 time or more in the past*1 When an open/short has occurred in the driver-side front air mix actuator (potentiometer) circuit 1 time or more in the past*2 | X | (See DTC 38.)
58 |  | Driver-side front air mix actuator (motor lock) (past malfunction)*1 Passenger-side front air mix actuator (motor lock) (past malfunction)*2 | When motor lock has occurred in the driver-side front air mix actuator circuit 1 time or more in the past*1 When motor lock has occurred in the passenger-side front air mix actuator circuit 1 time or more in the past*2 | X | (See DTC 58.)
59 |  | Front airflow mode actuator (motor lock) (past malfunction) | When motor lock has occurred in the front airflow mode actuator circuit 1 time or more in the past | X | (See DTC 59.)
61 |  | Passenger-side front air mix actuator (motor lock) (past malfunction)*1 Driver-side front air mix actuator (motor lock) (past malfunction)*2 | When motor lock has occurred in the passenger-side front air mix actuator circuit 1 time or more in the past*1 When motor lock has occurred in the driver-side front air mix actuator circuit 1 time or more in the past*2 | X | (See DTC 61.)
68 |  | Rear climate control unit communication system (past malfunction) | When an open/short has occurred in the between front climate control unit and rear climate control unit communication circuit 1 time or more in the past | — | (See DTC 68.)
69 |  | Rear climate control unit communication system (present malfunction) | Between front climate control unit and rear climate control unit communication circuit open/short circuit | — | (See DTC 69.)
76 |  | Rear air mix actuator (potentiometer) (present malfunction) | Rear air mix actuator (potentiometer) circuit open/short circuit | — | (See DTC 76.)
77 |  | Rear air mix actuator (potentiometer) (past malfunction) | When an open/short has occurred in the rear air mix actuator (potentiometer) circuit 1 time or more in the past | X | (See DTC 77.)
78 |  | Rear evaporator temperature sensor (present malfunction) | Rear evaporator temperature sensor circuit open/short circuit | — | (See DTC 78.)
79 |  | Rear evaporator temperature sensor (past malfunction) | When an open/short has occurred in the rear evaporator temperature sensor circuit 1 time or more in the past | X | (See DTC 79.)
85 |  | Rear airflow mode actuator (potentiometer) (present malfunction) | Rear airflow mode actuator (potentiometer) circuit open/short circuit | — | (See DTC 85.)
86 |  | Rear airflow mode actuator (potentiometer) (past malfunction) | When an open/short has occurred in the rear airflow mode actuator (potentiometer) circuit 1 time or more in the past | X | (See DTC 86.)
95 |  | Rear air mix actuator (motor lock) (past malfunction) | When motor lock has occurred in the rear air mix actuator circuit 1 time or more in the past | X | (See DTC 95.)
96 |  | Rear airflow mode actuator (motor lock) (past malfunction) | When motor lock has occurred in the rear airflow mode actuator circuit 1 time or more in the past | X | (See DTC 96.)

*1 :L.H.D.
*2 :R.H.D.

Output Device Operation Check Mode

Inspection

1. Warm up the engine.

2. Turn the ignition switch to OFF position.

3. Remove the following parts: (R.H.D.)

  (1) Decoration panel (Driver side) (See DECORATION PANEL REMOVAL/INSTALLATION.)

  (2) Dashboard under cover (Driver side) (See DASHBOARD UNDER COVER REMOVAL/INSTALLATION.)

  (3) Side wall (Driver side) (See SIDE WALL REMOVAL/INSTALLATION.)

  (4) Console panel (Driver side) (See CONSOLE PANEL REMOVAL/INSTALLATION.)

4. Remove the following parts: (L.H.D.)

  (1) Dashboard under cover (passenger side) (See DASHBOARD UNDER COVER REMOVAL/INSTALLATION.)

  (2) Glove compartment (See GLOVE COMPARTMENT REMOVAL/INSTALLATION.)

5. Short the check connector terminal A to the ground using a jumper wire.

R.H.D.

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L.H.D.

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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.

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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 OFF position to end the output device operation check mode.

Output device operation check table

Step | Operating device | Operating conditions | Monitor* | Output to information display
--- | --- | --- | --- | ---
1 | Front climate control unit |  | Entire illumination of climate control display | • Entire illumination of climate control display
Information display |
2 | Blower motor speed |  | 01 | • The front A/C airflow volume is displayed in the front airflow volume display area.
3 | Air mix actuator operation |  | 21.0 (100%) | • The display is the same as the set temperature display
20.5 (50%) |
20.0 (0%)
4 | Airflow mode actuator operation |  | 03 | • The front A/C airflow mode is displayed in the front mode display area. ― The DEFROSTER switch indicator illuminates during DEFROSTER mode. • The rear A/C airflow mode cannot be displayed.
5 | Air intake actuator operation |  | 04 | • The intake mode is displayed in the intake mode display area. ― The REC switch indicator illuminates during REC mode. • "A/C" is displayed when the A/C is on.The A/C switch indicator illuminates during A/C ON.
A/C compressor operation |  |

* :Shown on the information display according to step.