Diagnostic Trouble Code Table
If malfunction code is displayed during the DTC check, check the circuit listed for that code in DETECTION ITEM AND TROUBLE AREA REFERENCE . Proceed to the DTC No. given for that circuit.
HINT:
- If DTC 00 is displayed, the air conditioning system is normal.
- To confirm DTC 22, perform the following steps.
- With the engine ON, enter the DTC check mode.
- Press the R/F switch to enter actuator check mode, and set the operation to Step No. 3.
- Press the AUTO switch to return to DTC check mode.
- The DTC is displayed after approximately 3 seconds.
Air conditioning system
DETECTION ITEM AND TROUBLE AREA REFERENCEDTC No. Detection Item Trouble Area Memory Diagnosis Note 11 *1 Room Temperature Sensor Circuit - Front room temp. sensor
- Harness or connector between front room temp. sensor and A/C amplifier
- A/C amplifier
O
(8.5 min. or more)If the room temp. is approx. -20°C (-4°F) or less, DTC 11 may be output even though the system is normal. 12 *2 Ambient Temperature Sensor Circuit - Ambient temp. sensor
- Harness or connector between ambient temp. sensor and A/C amplifier
- A/C amplifier
O
(8.5 min. or more)If the ambient temperature is approx. -50°C (-58°F) or less, a DTC may be output even though the system is normal. 13 Evaporator Temperature Sensor Circuit - Front evaporator temp. sensor
- Harness or connector between front evaporator temp. sensor and A/C amplifier
- A/C amplifier
O
(8.5 min. or more)- 14 Engine Coolant Temperature Communication Circuit - Engine coolant temp. sensor
- Harness or connector between engine coolant temp. sensor and ECM
- Harness or connector between ECM and A/C amplifier
- ECM
- A/C amplifier
- - 17 Rear Evaporator Temperature Sensor Circuit - Rear evaporator temp. sensor
- Harness or connector between Rear evaporator temp. sensor and rear A/C amplifier
- A/C amplifier
Rear A/C amplifier communication data - 19 *1 Rear Room Temperature Sensor Circuit - Rear room temp. sensor
- Harness or connector between rear room temp. sensor and rear A/C amplifier
- Rear A/C amplifier
Rear A/C amplifier communication data If the room temp. is approx. -20°C (-4°F) or less, DTC 11 may be output even though the system is normal. 21 *3 Solar Sensor Circuit - Solar sensor
- Harness or connector between solar sensor and A/C amplifier
- A/C amplifier
O
(8.5 min. or more)If the check is being performed in a dark place, DTC 21 (solar sensor circuit abnormal) could be displayed. In this case, perform DTC check again while shining a light, such as an inspection light, on the solar sensor.
If DTC 21 is still displayed, there could be trouble in the solar sensor circuit.22 *4 Compressor Lock Sensor Circuit - Compressor driver belt
- Compressor lock sensor
- Compressor
- ECM
- Harness or connector between compressor lock sensor and ECM
- Harness or connector between ECM and A/C amplifier
- A/C amplifier
- Compressor lock (DTC 22) is indicated only for a current malfunction. 23 Pressure Switch Circuit - Pressure switch
- Harness or connector between pressure switch and A/C amplifier
- Refrigerant pipe line
- A/C amplifier
- - 26 System Too Rich - Pressure switch
- Harness or connector between rear inlet air temp. sensor and rear A/C amplifier
- Rear A/C amplifier
Rear A/C amplifier communication data - 31 Air Mix Damper Position Sensor Circuit - Front air mix damper position sensor
- Harness or connector between front air mix damper position sensor and A/C amplifier
- A/C amplifier
O
(1 min. or more)- 32 Air Inlet Damper Position Sensor Circuit - Air inlet damper position sensor
- Harness or connector between air inlet damper position sensor and A/C amplifier
- A/C amplifier
O
(1 min. or more)- 37 Rear Air Mix Damper Position Sensor Circuit - Rear air mix damper position sensor
- Harness or connector between rear air mix damper position sensor and rear A/C amplifier
- Rear A/C amplifier
Rear A/C amplifier communication data - 41 Air Mix Damper Control Servo Motor Circuit (Passenger Side) - Front air mix damper control servomotor
- Harness or connector between rear air mix damper control servomotor and rear A/C amplifier
- Rear A/C amplifier
O
(15 sec. or more)- 42 Air Inlet Damper Control Servo Motor Circuit - Air inlet damper control servomotor
- Harness or connector between air inlet damper control servomotor and A/C amplifier
- Rear A/C amplifier
O
(15 sec. or more)- 47 Rear Air Mix Damper Control Servo Motor Circuit - Rear air mix damper control servomotor
- Harness or connector between rear air mix damper control servomotor and rear A/C amplifier
- Rear A/C amplifier
Rear A/C amplifier communication data - 41 Air Mix Damper Control Servo Motor Circuit (Passenger Side) - Front air mix damper control servomotor
- Harness or connector between rear air mix damper control servomotor and rear A/C amplifier
- Rear A/C amplifier
O
(15 sec. or more)- 42 Air Inlet Damper Control Servo Motor Circuit - Air inlet damper control servomotor
- Harness or connector between air inlet damper control servomotor and A/C amplifier
- Rear A/C amplifier
O
(15 sec. or more)- 47 Rear Air Mix Damper Control Servo Motor Circuit - Rear air mix damper control servomotor
- Harness or connector between rear air mix damper control servomotor and rear A/C amplifier
- Rear A/C amplifier
Rear A/C amplifier communication data -
HINT:
- *1: If the room temperature is approx. -20°C (-4°F) or less, DTC 11 may be output even though the system is normal.
- *2: If the ambient temperature is approx. -50°C (-58°F) or less, a DTC may be output even though the system is normal.
- *3: If the check is being performed in a dark place, DTC 21 (solar sensor circuit abnormal) could be displayed. In this case, perform DTC check again while shining a light, such as inspection light, on the solar sensor. If DTC 21 is still displayed, there could be trouble in the solar sensor circuit.
- *4: Compressor lock (DTC 22) is indicated only for a current malfunction.