412-00-33 Climate Control System — General Information 412-00-33
DIAGNOSIS AND TESTING (CONTINUED)
CONDITIONS
DETAILS/RESULTS/ACTIONS
2 Measure the resistance between re-circulation
switch, connector C353, pin 1, circuit 14S-
CA66 (VT/OG), harness side and relay socket
– A/C re-circulation flap, connector C342, pin
2, circuit 14S-CA66 (VT/OG).
• Is the resistance less than 2 ohms?
Yes
CHECK the re-circulation switch; INSTALL a
new one if necessary. TEST the system for
normal operation.
No
REPAIR the open circuit(s) between re-
circulation switch and relay – A/C re-
circulation flap by using the wiring diagrams.
TEST the system for normal operation.
Component Test
Relay – A/C W.O.T
1. Check the relay contact in normal condition
Measure the resistance at the relay between pin 3
and pin 5.
Is the resistance greater than 100 Kohm?
If yes, GO to 2.
If not, INSTALL a new relay.
2. Check relay contact in activated condition
Using a test cable and set up the test as in the
following description.
• Connect the battery positive terminal with the
relay, pin 1.
• Connect the battery negative terminal with the
relay, pin 2.
Measure the resistance at the relay between pin 3
and pin 5.
Does the relay switch (audible click) when battery
voltage is applied and is the resistance less than
1,0 Ohm?
If yes, the relay is OK.
If not, INSTALL a new relay.
Relay – A/C switch
1. Check the relay contact in normal condition
E9425 EN 07/2001 2002 Bantam
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