Toyota Corolla (E170): Automatic air conditioning system

Air outlets and fan speed are automatically adjusted according to the temperature setting.

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How to proceed with troubleshooting
1 Vehicle brought to workshop 2 Customer problem analysis 3 Check and clear dtc 4 Problem symptom confirmation 5 Symptom simulation 6 Dtc check 7 Dtc chart 8 Problem symptoms table 9 Circuit inspection 10 Identification of problem 11 Parts inspection 12 Repair 1 ...

Diagnostic trouble code chart
If a dtc is displayed during the dtc check, check the circuit listed in the table below and proceed to the page given. * :● ... Mil light up ...

Pressing power switch does not start system
Wiring diagram Inspection procedure 1 Inspect radio receiver assy(+b, acc, gnd) Check that the continuity between terminals at each condition, as shown in the chart. Standard: Check that the voltage between terminals at each condition, as shown in the chart. Standard: ...