Diagnostic Trouble Code Table
WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
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.