DTC B1081-71; B1082-71; Driver-Side And Passenger-Side Air Mix Actuator Motor Lock: Notes
DTC DETECTION DESCRIPTION
| System malfunction location |
- B1081:71: Driver-side air mix actuator motor lock
- B1082:71: Passenger-side air mix actuator motor lock
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| Detection condition |
- After the air mix actuator drive signal is output, the air mix actuator does not stop within the target air mix actuator opening angle range for a continuous 20 s or more.
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| Fail-safe function |
Malfunction determined when ignition switched ON
- Air mix actuator drive signal is stopped right when the malfunction is determined. Malfunction already exists when ignition switched ON
- Twenty seconds after the ignition is switched ON, the air mix actuator drive signal is output normally again. Afterwards, motor output is stopped during malfunction determination.
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| Possible cause |
- Connector or terminal malfunction
- Air mix actuator malfunction
- A/C unit (air mix link, air mix door) malfunction
- Open circuit in wiring harness between the following terminals:
Driver-side
- Climate control unit terminal 1C-Air mix actuator terminal G
- Climate control unit terminal 2K-Air mix actuator terminal F
- Climate control unit terminal 1Q-Air mix actuator terminal E
- Climate control unit terminal 1J-Air mix actuator terminal B
- Climate control unit terminal 1L-Air mix actuator terminal C
Passenger-side
- Climate control unit terminal 1C-Air mix actuator terminal E
- Climate control unit terminal 2I-Air mix actuator terminal F
- Climate control unit terminal 1Q-Air mix actuator terminal G
- Climate control unit terminal 2A-Air mix actuator terminal C
- Climate control unit terminal 2C-Air mix actuator terminal B
- Short to ground in wiring harness between the following terminals: Driver-side
- Climate control unit terminal 1C-Air mix actuator terminal G
- Climate control unit terminal 2K-Air mix actuator terminal F
- Climate control unit terminal 1J-Air mix actuator terminal B
- Climate control unit terminal 1L-Air mix actuator terminal
Passenger-side
- Climate control unit terminal 1C-Air mix actuator terminal d
- Climate control unit terminal 2I-Air mix actuator terminal F
- Climate control unit terminal 2A-Air mix actuator terminal C
- Climate control unit terminal 2C-Air mix actuator terminal B
- Short to power supply in wiring harness between the following terminals:
Driver-side
- Climate control unit terminal 1C-Air mix actuator terminal G
- Climate control unit terminal 2K-Air mix actuator terminal F
- Climate control unit terminal 1Q-Air mix actuator terminal E
- Climate control unit terminal 1J-Air mix actuator terminal B
- Climate control unit terminal 1L-Air mix actuator terminal C
Passenger-side
- Climate control unit terminal 1C-Air mix actuator terminal E
- Climate control unit terminal 2I-Air mix actuator terminal F
- Climate control unit terminal 1Q-Air mix actuator terminal G
- Climate control unit terminal 2A-Air mix actuator terminal C
- Climate control unit terminal 2C-Air mix actuator terminal B
- Climate control unit malfunction
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