2008 INFINITI QX56 Factory Service Manual

Page 3617 of 4083

INFINITI QX56 2008  Factory Service Manual TM-70
< COMPONENT DIAGNOSIS >
P1705 TP SENSOR
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.CHECK DTC WITH ECM 
With CONSULT-III
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “SELF-D

Page 3618 of 4083

INFINITI QX56 2008  Factory Service Manual P1710 TRANSMISSION FLUID TEMPERATURE SENSOR
TM-71
< COMPONENT DIAGNOSIS >
C EF
G H
I
J
K L
M A
B
TM
N
O P
P1710 TRANSMISSION FLUI D TEMPERATURE SENSOR
DescriptionINFOID:0000000001604099
The A/T fluid

Page 3619 of 4083

INFINITI QX56 2008  Factory Service Manual TM-72
< COMPONENT DIAGNOSIS >
P1710 TRANSMISSION FLUID TEMPERATURE SENSOR
2.CHECK A/T FLUID TEMPERATURE SENSOR 2 SIGNAL
With CONSULT-III
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA M

Page 3620 of 4083

INFINITI QX56 2008  Factory Service Manual P1710 TRANSMISSION FLUID TEMPERATURE SENSOR
TM-73
< COMPONENT DIAGNOSIS >
C EF
G H
I
J
K L
M A
B
TM
N
O P
3. If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >>

Page 3621 of 4083

INFINITI QX56 2008  Factory Service Manual TM-74
< COMPONENT DIAGNOSIS >
P1721 VEHICLE SPEED SIGNAL
P1721 VEHICLE SPEED SIGNAL
DescriptionINFOID:0000000001604106
The vehicle speed signal is transmitted from combination meter to TCM by CAN comm

Page 3622 of 4083

INFINITI QX56 2008  Factory Service Manual P1721 VEHICLE SPEED SIGNALTM-75
< COMPONENT DIAGNOSIS >
CEF
G H
I
J
K L
M A
B
TM
N
O P
OK >> GO TO 4.
NG >> GO TO 3.
3.CHECK COMBINATION METERS
Check combination meter. Refer to  MWI-4, "
Work Flow".

Page 3623 of 4083

INFINITI QX56 2008  Factory Service Manual TM-76
< COMPONENT DIAGNOSIS >
P1730 INTERLOCK
P1730 INTERLOCK
DescriptionINFOID:0000000001604112
• Fail-safe function to detect interlock conditions.
On Board Diagnosis LogicINFOID:0000000001604113

Page 3624 of 4083

INFINITI QX56 2008  Factory Service Manual P1730 INTERLOCKTM-77
< COMPONENT DIAGNOSIS >
CEF
G H
I
J
K L
M A
B
TM
N
O P
• Refer to  TM-76, "DTC Confirmation Procedure".
OK or NG
OK >> INSPECTION END
NG >> GO TO 3.
3.CHECK TCM POWER SUPPLY AND