Isuzu 2000 Trooper Workshop Manual page 163

1A–134 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
Heater (B–36), Thermostat (X–5), And
Compressor (X–7) Relay
1. Disconnect relays and check for continuity and
resistance between relay terminals.
D For handling of these relays, refer to Heater Relay
in this section.
Triple Pressure Switch (V6, A/T)
1. Disconnect the connector and check for continuity
between pressure switch side connector terminals (1)
and (2).
2. Reconnect the connector to activate the A/C switch,
and check to see if there is continuity between the
chassis side connector terminal (3) and (4) and the
fan operates.
901RY00041
875RX009