Diagnostic Trouble Code Chart

If malfunction code is displayed during the DTC check (sensor check), check the circuit listed for that code in the table below (Proceed to the page given for that circuit).

Fig 1: Diagnostic Trouble Code Chart

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HINT:

• *1: If the room temperature is approx. -18.6°C (-1.48°F) or lower, DTCB1411/11 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: If the check is being performed in a dark place, DTC B1421/21 (solar sensor circuit abnormal) could be displayed.
• *4: The A/C amplifier assy memorizes the DTC of the respective malfunction it has occurred for the period of the time indicated in the brackets.
• *5: Compressor lock (DTC B1422/22) is indicated only for a current malfunction, (see DTC B1422/22 COMPRESSOR LOCK SENSOR CIRCUIT ) To confirm DTC B1422/22, perform the following steps.
  1. With the engine ON, enter the DTC check mode.
  2. Press the R/F switch to enter actuator check mode, and set the operation to Step No. 3.
  3. Press the AUTO switch to return to DTC check mode.
  4. The DTC is displayed after approximately 3 seconds.