Owner's Manual

TROUBLE DIAGNOSIS
MTC-45
C
D
E
F
G
H
I
K
L
M
A
B
MTC
Revision: March 2005 2005 Altima
3. CHECK POWER SUPPLY FOR MOTOR
Check voltage between mode door motor connector M40 terminal 1
(L/R) and ground, between air mix door motor connector M39 termi-
nal 1 (L/R) and ground, and between intake door motor connector
M58 terminal 1 (L/R) and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace harness or connector.
4. CHECK SIGNAL FOR MOTOR
Check voltage between mode door motor connector M40 terminal 3
(L/B) and ground, between air mix door motor connector M39 termi-
nal 3 (L/B) and ground, and between intake door motor connector
M58 terminal 3 (L/B) and ground.
OK or NG
OK >> GO TO 5.
NG >> Replace harness or connector.
5. CHECK MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door motor connectors.
3. Check continuity between mode door motor connector M40 ter-
minal 2 (B) and ground, between air mix door motor connector
M39 terminal 2 (B) and ground, and between intake door motor
connector M58 terminal 2 (B) and ground.
OK or NG
OK >> GO TO 6.
NG >> Replace harness or connector.
Door motors
Terminals
Voltage (V)
(Approx.)
(+)
(-)
Connector wire colors
Mode M40-1 L/R
Body ground 12VAir mix M39-1 L/R
Intake M58-1 L/R
WJIA0038E
Door motors
Terminals
Voltage (V)
(Approx.)
(+)
(-)
Connectors wire colors
Mode M40-3 L/B
Body
ground
5.5VAir mix M39-3 L/B
Intake M58-3 L/B
WJIA1188E
Door motors
Terminals
Continuity(+)
(-)
Connector wire colors
Mode M40-2 B
Body ground YesAir mix M39-2 B
Intake M58-2 B
WJIA0884E