2007 INFINITI QX56 Factory Service Manual

Page 433 of 3061

INFINITI QX56 2007  Factory Service Manual 
TROUBLE DIAGNOSISATC-63
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
1. Disconnect the air mix door motor (driver) harness connector.
2. Check continuity between front  air control harne

Page 434 of 3061

INFINITI QX56 2007  Factory Service Manual 
ATC-64
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
1. Disconnect the air mix door motor (driver) harness connector.
2. Check continuity between air mix door motor (driver) harnessconnector M147 (B) ter

Page 435 of 3061

INFINITI QX56 2007  Factory Service Manual 
TROUBLE DIAGNOSISATC-65
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
1. Turn ignition switch ON.
2. Rotate temperature control dial (passenger) to 32 °C (90 °F).
3. Check voltage betwe

Page 436 of 3061

INFINITI QX56 2007  Factory Service Manual 
ATC-66
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
1. Disconnect the air mix door motor (passenger) harness connec-tor.
2. Check continuity between front air control harness connector
M50 terminal 36,

Page 437 of 3061

INFINITI QX56 2007  Factory Service Manual 
TROUBLE DIAGNOSISATC-67
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
1. Disconnect the air mix door mo tor (passenger) harness connec-
tor.
2. Check continuity between air mix door motor

Page 438 of 3061

INFINITI QX56 2007  Factory Service Manual 
ATC-68
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
1. Turn ignition switch ON.
2. Rotate temperature control dial (rear) to maximum heat.
3. Check voltage between front air control harness connector M5

Page 439 of 3061

INFINITI QX56 2007  Factory Service Manual 
TROUBLE DIAGNOSISATC-69
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
1. Disconnect the air mix door motor (rear) harness connector.
2. Check continuity between front  air control harness

Page 440 of 3061

INFINITI QX56 2007  Factory Service Manual 
ATC-70
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
1. Disconnect the air mix door motor (rear) harness connector.
2. Check continuity between air mix door motor (rear) harness con-nector B155 (B) termi