Corolla Sport Coupe L4-1587cc 1.6L DOHC (4A-F) (1988)
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Control Module HVAC: Testing and Inspection
A/C Amplifier Without P/S
Fig. 19 A/C Amplifier Wire Harness Tester Connector W/4A-F & 4A-GE Engine Less Power Steering
Fig. 20 A/C Amplifier Control Circuit Test Less Power Steering
To check A/C amplifier control circuit, turn ignition switch to the ON position, move temperature control lever to MAX COOL and turn blower control
switch to HI. Check for resistance and voltage values between connector terminals Fig. 19. If any readings are not as specified, Fig. 20 locate and repair
faulty wiring or replace amplifier if necessary.
