AIR CONDITIONING SYSTEM (for Manual Air Conditioning System) DIAGNOSTIC TROUBLE CODE CHART

Tech Tips


  • If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below.

  • *: The air conditioning amplifier assembly stores the DTC of the respective malfunction that has occurred for the period of the time indicated in the brackets.

Air Conditioning Amplifier
DTC Code Detection Item Memory* Diagnostic Note See page
B1412 Ambient Temperature Sensor Circuit

Stored

(8.5 minutes or more)

If ambient temperature is approximately -52.9°C (- 63.22°F) or less, a malfunction code may be output even though the system is normal.

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B1413 Evaporator Temperature Sensor Circuit

Stored

(8.5 minutes or more)

-

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B1422 Compressor Lock Sensor Circuit - -

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B1423 Pressure Sensor Circuit - -

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B1442 Air Inlet Damper Control Servo Motor Circuit

Stored

(30 seconds)

-

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B1443 Air Outlet Damper Control Servo Motor Circuit

Stored

(30 seconds)

-

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B1445 Cool Air Bypass Damper Control

Stored

(30 seconds)

-

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B1446 Air Mix Damper Control Servo Motor Circuit (Driver Side)

Stored

(30 seconds)

-

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B1497 Communication Malfunction (Bus Ic) - -

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U0100 Lost Communication with ECM / PCM "A" - -

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U0142 Lost Communication with Body Control Module "B" - -

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U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module - -

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