Toyota Venza: Diagnostic Trouble Code Chart

Toyota Venza Service Manual / Heating / Air Conditioning / Air Conditioning System / Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

HINT:

When the air conditioning system functions properly, DTC B1400/00 is output.

Air Conditioning System

DTC Code	Detection Item	Trouble Area	Memory*3
B1411/11*1	Room Temperature Sensor Circuit	1. Room temperature sensor 2. Harness or connector between room temperature sensor and A/C amplifier 3. A/C amplifier	Memorized (4 sec. or more)
B1412/12*2	Ambient Temperature Sensor Circuit	1. Ambient temperature sensor 2. Harness or connector between ambient temperature sensor and A/C amplifier 3. A/C amplifier	Memorized (4 sec. or more)
B1413/13	Evaporator Temperature Sensor Circuit	1. Evaporator temperature sensor 2. Air conditioning harness 3. A/C amplifier	Memorized (4 sec. or more)
B1422/22*4	Compressor Lock Sensor Circuit	1. A/C compressor (A/C lock sensor) 2. Compressor drive belt 3. Harness or connector between A/C compressor and A/C amplifier 3. A/C amplifier 4. CAN communication system	-
B1423/23	Pressure Sensor Circuit	1. A/C pressure sensor 2. Harness or connector between A/C pressure sensor and A/C amplifier 3. A/C amplifier 4. Expansion valve (blocked, stuck) 5. Condenser (blocked, deterioration of cooling capacity due to dirt) 6. Cooler dryer (moisture in the refrigerant cycle cannot be absorbed) 7. Cooling fan system (condenser cannot be cooled down) 8. A/C system (leaks, blocked)	-
B1441/41	Air Mix Damper Control Servo Motor Circuit (Passenger Side)	1. Air mix control servo motor 2. Air conditioning harness 3. A/C amplifier	Memorized (30 sec. or more)
B1442/42	Air Inlet Damper Control Servo Motor Circuit	1. Air inlet control servo motor 2. Air conditioning harness 3. A/C amplifier	Memorized (30 sec. or more)
B1443/43	Air Outlet Damper Control Servo Motor Circuit	1. No. 1 air mix control servo motor (air outlet control servo motor) 2. Air conditioning harness 3. A/C amplifier	Memorized (30 sec. or more)
B1446/46	Air Mix Damper Control Servo Motor Circuit (Driver Side)	1. No. 1 air mix control servo motor (air mix control servo motor) 2. Air conditioning harness 3. A/C amplifier	Memorized (30 sec. or more)
B1451/51	Compressor Solenoid Circuit	1. A/C compressor (solenoid valve) 2. Harness or connector between A/C amplifier and A/C compressor (solenoid valve) 3. A/C amplifier	-
B1497/97	BUS IC Communication Malfunction	1. Air conditioning harness 2. A/C amplifier	Memorized (10 sec. or more)
B14A2	Driver Side Solar Sensor Short Circuit	1. Solar sensor 2. Harness or connector between solar sensor and A/C amplifier 3. Harness or connector between solar sensor and main body ECU 4. Main body ECU 5. A/C amplifier	Memorized (4 sec. or more)
B14A3	Front Passenger Side Solar Sensor Short Circuit	1. Solar sensor 2. Harness or connector between solar sensor and A/C amplifier 3. Harness or connector between solar sensor and main body ECU 4. Main body ECU 5. A/C amplifier	Memorized (4 sec. or more)
U0100	Lost Communication with ECM	1. CAN communication system 2. ECM	-
U0131	Lost Communication with Electric Power Steering ECU	1. CAN communication system 2. Electric power steering ECU	-
U0142	Lost Communication with Main Body ECU	1. CAN communication system 2. Main body ECU	-
U0155	Lost Communication with Combination Meter	1. CAN communication system 2. Combination meter	-

*1: If the cabin temperature is approx. -18.6°C (-1.48°F) or lower, DTC B1411/11 may be output even though the system is normal.
*2: If the ambient temperature is approx. -52.9°C (-63.22°F) or lower, DTC B1412/12 may be output even though the system is normal.
*3: The A/C amplifier stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.
*4: for 2GR-FE

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