Owner's Manual

MTC-54
MAGNET CLUTCH
7. CHECK COIL SIDE CIRCUIT OF A/C RELAY
Reconnect A/C relay.
Do approx. 12 volts exist between ECM harness connector F59 ter-
minal 105 (L) and body ground?
Yes or No
Yes >> GO TO 9.
No >> Disconnect A/C relay. Disconnect ECM harness connec-
tor. GO TO 8.
8. CHECK CIRCUIT CONTINUITY BETWEEN A/C RELAY AND ECM HARNESS
Check circuit continuity between A/C relay harness connector E50
terminal 2 (L) and ECM harness connector F59 terminal 105 (L).
If OK, check harness for short.
OK or NG
OK >> Check ECM. Refer to EC-106, "ECM Terminals and Ref-
erence Value" (with QG18DE), or EC-746, "ECM Termi-
nals and Reference Value" (with QR25DE).
NG >> Repair harness or connector.
9. CHECK VOLTAGE FOR ECM
Do approx. 12 volts exist between ECM harness connector F59 ter-
minal No. 110 (L/R) and body ground?
Yes or No
Yes >> GO TO 10.
No >> Check ECM. Refer to EC-106, "
ECM Terminals and Ref-
erence Value" (with QG18DE), or EC-746, "ECM Termi-
nals and Reference Value" (with QR25DE).
10. CHECK REFRIGERANT PRESSURE SENSOR
Refer to MTC-56, "
REFRIGERANT PRESSURE SENSOR" .
OK or NG
OK >> GO TO 11.
NG >> Replace refrigerant pressure sensor.
Battery voltage should exist.
WJIA0376E
Continuity should exist.
WJIA0377E
Battery voltage should exist.
WJIA0378E