The voltage changes with gas pressure, as shown in the diagram below. HINT: However, if DTC 23 is displayed, check and replace A/C amplifier. OK REPLACE AIR CONDITIONING AMPLIFIER NG agn 2. CHECK PRESSURE SWITCH (a) Disconnect the A5 pressure switch connector. (b) Turn the ignition switch ON. (c) Check continuity between terminals 1 and 2 of the pressure switch when A/C gas pressure changes. OK: The continuity changes with gas pressure as shown below. REPLACE PRESSURE NG SWITCH OK 3.
CHECK WIRE HARNESS (PRESSURE SWITCH - AIR CONDITIONING AMPLIFIER) REPAIR OR REPLACE HARNESS AND NG CONNECTOR cardi OK REPLACE AIR CONDITIONING AMPLIFIER NG REPLACE PRESSURE SWITCH NG REPAIR OR REPLACE HARNESS AND CONNECTOR