AC/Air Conditioning — Check continuity of switch circuit in A/C control assembly., page 68

AC–68
AIR CONDITIONING SYSTEM – TROUBLESHOOTING

4    Check continuity of switch circuit in A/C control assembly.

P    Remove A/C control assembly and disconnect connectors.

C    1.    Push the control switch on or Off.
     2.    Check continuity between terminals as follows.

Switch    SW1       SW2       SW3        SW4       SW5        SW6      SW7
          H13-7    H13-2    H12-13    B13-9    H13-10    B13-1    H12-16

OFF       O—                                                              —O
R/F                 O—                                                    —O
DEF                           O—                                          —O
FOOT      O—                                              —O
F/D                 O—                                    —O
A/C                           O—                          —O
RDEF      O—                                    —O
FACE                O—                          —O
FAND-               O—                          —O
AUTO      O—                          —O
B/L                 O—                 —O
FAND+               O—       —O

FAND – :    Turn fan speed dial counterclockwise.
FAND + :    Turn fan speed dial  clockwise.

OK    Switch              Check result
      ON                  Continuity
      OFF                 No continuity

OK

NG    Repair or replace A/C control assembly.

Check and replace A/C amplifier.