MTC Air Conditioner - Page 77

TROUBLE DIAGNOSIS
MTC-77
C
D
E
F
G
H
I
K
L
M
A
B
MTC
Revision: January 2005 2004 Quest
14. CHECK FRONT BLOWER SWITCH CIRCUIT
1. Reconnect front blower motor resistor harness connector.
2. Check voltage between front blower switch connector M51 ter-
minals 2 (G/B), 3 (L/Y), and 7 (L/R) and ground.
OK or NG
OK >> Replace front air control. Refer to MTC-116, "FRONT AIR CONTROL" .
NG >> GO TO 15.
15. CHECK FRONT BLOWER MOTOR GROUND CIRCUIT TO FRONT BLOWER MOTOR RESISTOR
1. Disconnect front blower motor and front blower motor resistor
harness connector.
2. Check continuity between front blower motor connector M62 ter-
minal - (L/W) and front blower motor resistor harness connector
M122 terminal 3 (L/W).
3. Check continuity between front blower motor connector M62 ter-
minal - (L/W) and ground.
OK or NG
OK >> INSPECTION END.
NG >> Repair harness or connector.
16. CHECK FRONT BLOWER SWITCH
Refer to MTC-78, "
Front Blower Switch" .
OK or NG
OK >> Repair harness or connector.
NG >> Replace front air control. Refer to MTC-116, "
FRONT AIR CONTROL" .
Terminal No.
Voltage
(Approx.)
+-
2
Ground 12V3
7
WJIA0969E
Continuity should exist.
Continuity should not exist.
WJIA0970E