Test Description

WARNING: This page is about a different car, the 2002 Isuzu Trooper, 2002 Isuzu Rodeo Sport, 2002 Isuzu Rodeo, 2002 Isuzu Axiom, and 2002 Honda Passport. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: DO NOT engage A/C compressor clutch with the engine running if an A/C mode is not selected at the A/C control switch.

Numbers below refer to the numbers in the Diagnostic Procedure:

3

This test determines is problem is with refrigerant system. If switch is open, A/C pressure gauges will be used to determine if pressure switch is faulty or if the system is partially discharged or empty.

4

Although the normal complaint will be A/C clutch fails to engage, it is possible for a short circuit to cause A/C clutch to run when A/C has not been selected. This step tests for that condition.

7

There is an extremely low probability that both relays will fail at the same time, so substitution process is one way to check A/C Thermostat relay. Use a known good relay to do a substitution check.