Owner's Manual

TROUBLE DIAGNOSIS
MTC-57
C
D
E
F
G
H
I
K
L
M
A
B
MTC
Revision: March 2005 2005 Altima
6. CHECK POWER SUPPLY FOR FRONT AIR CONTROL
1. Turn ignition switch ON.
2. Check voltage between front air control harness connector M49
terminal 2 (Y/R) and ground.
OK or NG
OK >> 1. Replace front air control. Refer to MTC-76, "Removal
and Installation" .
2. Confirm that blower motor operation is normal.
NG >>
● Check for open circuit in wiring harness.
Repair or replace as necessary.
● If OK, replace fuse and check wiring harness for short circuit.
Repair or replace an necessary.
7. CHECK POWER SUPPLY FOR BLOWER MOTOR
1. Turn ignition OFF.
2. Disconnect blower motor harness connector.
3. Turn ignition switch ON.
4. Check voltage between blower motor harness connector M62
terminal 1 (W/L) and ground.
OK or NG
OK >> GO TO 8.
NG >> Check power supply circuit and 15A fuses [Nos. 10 and
11, located in the fuse block (J/B)].
● If OK, check for open circuit in wiring harness.
Repair or replace as necessary.
● If OK, replace fuse and check wiring harness for short circuit.
Repair or replace as necessary.
Terminal
Voltage (V)
(Approx.)
(+) (-)
Connector - Terminal Wire color
Body ground 12V
M49-2 Y/R
WJIA1197E
Terminal
Voltage (V)
(Approx.)
(+) (-)
Connector - Terminal Wire color
Body ground 12V
M62-1 W/L
WJIA0056E