Diagnostic Trouble Code Chart
If malfunction code is displayed during the DTC check, check the circuit listed for that code in the table below. Proceed to the page 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.DTC CHART
DTC No. Detection Item Trouble Area Memory Diagnosis Note See 11 *1 Room Temperature Sensor Circuit - Front room temperature sensor
- Harness or connector between front room temperature sensor and A/C amplifier
- A/C amplifier
◦ (8.5 min. or more) If the room temperature is approx. -20°C(-4°F) or less, DTC 11 may be output even though the system is normal. DTC 11 ROOM TEMPERATURE SENSOR CIRCUIT 12 *2 Ambient Temperature Sensor Circuit - Ambient temperature sensor
- Harness or connector between ambient temperature sensor and A/C amplifier
- A/C amplifier
◦ (8.5 min. or more) If the ambient temperature is approx. -50°C(-58°F) or less, DTC 11 may be output even though the system is normal. DTC 12 AMBIENT TEMPERATURE SENSOR CIRCUIT 13 Evaporator Temperature Sensor Circuit - Front evaporator temperature sensor
- Harness or connector between front evaporator temperature sensor and A/C amplifier
- A/C amplifier
- A/C amplifier
◦ (8.5 min. or more) - DTC 13 EVAPORATOR TEMPERATURE SENSOR CIRCUIT 14 Engine Coolant Temperature Communication Circuit - Engine coolant temperature sensor
- Harness or connector between engine coolant temperature sensor and ECM
- Harness or connector between ECM and A/C amplifier
- ECM
- A/C amplifier
- - DTC 14 ENGINE COOLANT TEMPERATURE COMMUNICATION CIRCUIT 17 Rear Evaporator Temperature Sensor Circuit - Rear evaporator temperature sensor
- Harness or connector between Rear evaporator temperature sensor and rear A/C amplifier
- A/C amplifier
Rear A/C amplifier communication data - DTC 17 REAR EVAPORATOR TEMPERATURE SENSOR CIRCUIT 18 Emission Gas Sensor Circuit - Exhaust gas sensor
- Harness or connector between exhaust gas sensor and A/C amplifier
- A/C amplifier
- - DTC 18 EMISSION GAS SENSOR CIRCUIT 19 *1 Rear Room Temperature Sensor Circuit - Rear room temperature sensor
- Harness or connector between rear room temperature sensor and rear A/C amplifier
- Rear A/C amplifier
Rear A/C amplifier communication data If the room temperature is approx. -20°C(-4°F) or less, DTC 11 may be output even though the system is normal. DTC 19 REAR ROOM TEMPERATURE SENSOR CIRCUIT 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. DTC 21 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. DTC 22 COMPRESSOR LOCK SENSOR CIRCUIT 23 Pressure switchitch Circuit - Pressure switchitch
- Harness or connector between pressure switchitch and A/C amplifier
- Refrigerant pipe line
- A/C amplifier
- - DTC 23 PRESSURE SWITCH CIRCUIT 26 System Too Rich - Pressure switchitch
- Harness or connector between rear inlet air temperature sensor and rear A/C amplifier
- Rear A/C amplifier
Rear A/C amplifier communication data - DTC 26 SYSTEM TOO RICH 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
◦ (1 min. or more) - DTC 31 AIR MIX DAMPER POSITION SENSOR CIRCUIT; DTC 41 AIR MIX DAMPER CONTROL SERVO MOTOR CIRCUIT (PASSENGER SIDE) 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
◦ (1 min. or more) - DTC 32 AIR INLET DAMPER POSITION SENSOR CIRCUIT; DTC 42 AIR INLET DAMPER CONTROL SERVO MOTOR CIRCUIT 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 - DTC 37 REAR AIR MIX DAMPER POSITION SENSOR CIRCUIT; DTC 47 REAR AIR MIX DAMPER CONTROL SERVO MOTOR CIRCUIT 41 Air Mix Damper Control Servomotor Circuit (Passenger Side) - Front air mix damper control servomotor
- Harness or connector between front air mix damper control servomotor and A/C amplifier
- A/C amplifier
◦ (15 sec. or more) - DTC 31 AIR MIX DAMPER POSITION SENSOR CIRCUIT; DTC 41 AIR MIX DAMPER CONTROL SERVO MOTOR CIRCUIT (PASSENGER SIDE) 41 Air Mix Damper Control Servomotor Circuit (Passenger Side) - - - DTC 41 AIR MIX DAMPER CONTROL SERVO MOTOR CIRCUIT (PASSENGER SIDE) 42 Air Inlet Damper Control Servomotor Circuit - Air inlet damper control servomotor
- Harness or connector between air inlet damper control servomotor and A/C amplifier
- A/C amplifier
◦ (15 sec. or more) - DTC 32 AIR INLET DAMPER POSITION SENSOR CIRCUIT; DTC 42 AIR INLET DAMPER CONTROL SERVO MOTOR CIRCUIT 42 Air Inlet Damper Control Servomotor Circuit - - - DTC 42 AIR INLET DAMPER CONTROL SERVO MOTOR CIRCUIT 47 Rear Air Mix Damper Control Servomotor 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 - DTC 37 REAR AIR MIX DAMPER POSITION SENSOR CIRCUIT; DTC 47 REAR AIR MIX DAMPER CONTROL SERVO MOTOR CIRCUIT 47 Rear Air Mix Damper Control Servomotor Circuit - - - DTC 47 REAR AIR MIX DAMPER CONTROL SERVO MOTOR CIRCUIT 61 Emission Gas NOx Sensor Circuit - Exhaust gas sensor
- Harness or connector between exhaust gas sensor and A/C amplifier
- A/C amplifier
- - DTC 61 EMISSION GAS NOX SENSOR CIRCUIT 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.