Loyale Sedan (4 Door) 4WD F4-1781cc 1.8L SOHC Turbo (1990)
A/C Signal: Testing and Inspection
A/C Switch
The A/C request signal does not set a trouble code. It may be tested with a voltmeter as follows:
1.
With the ignition switch "ON".
At ECU connector F82 terminal 23
A/C switch "ON"
10 - 13 volts
A/C switch "OFF"
0 volts
2.
With the engine "ON".
At ECU connector F82 terminal 23
A/C switch "ON"
13 - 14 volts
A/C switch "OFF"
0 volts
Check wiring harness between ECU and A/C switch. Also check A/C switch if above results are not acheived.