2008 INFINITI QX56 Factory Service Manual

Page 1441 of 4083

INFINITI QX56 2008  Factory Service Manual EC-142
< COMPONENT DIAGNOSIS >[VK56DE]
P0130, P0150 A/F SENSOR 1
PROCEDURE FOR MALFUNCTION B
CAUTION:
Always drive vehicle at a safe speed.
 With CONSULT-III
1. Start engine and warm it up to normal o

Page 1442 of 4083

INFINITI QX56 2008  Factory Service Manual P0130, P0150 A/F SENSOR 1EC-143
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Refer to 
EC-86, "Ground Inspection".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connection

Page 1443 of 4083

INFINITI QX56 2008  Factory Service Manual EC-144
< COMPONENT DIAGNOSIS >[VK56DE]
P0130, P0150 A/F SENSOR 1
4. Check harness continuity between the following terminals and ground.
Refer to Wiring Diagram.
5. Also check harness for short to pow

Page 1444 of 4083

INFINITI QX56 2008  Factory Service Manual P0131, P0151 A/F SENSOR 1EC-145
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0131, P0151 A/F SENSOR 1
Component DescriptionINFOID:0000000001351465
The air fuel ratio (A/F) sensor

Page 1445 of 4083

INFINITI QX56 2008  Factory Service Manual EC-146
< COMPONENT DIAGNOSIS >[VK56DE]
P0131, P0151 A/F SENSOR 1
NOTE:
•
Keep the accelerator pedal as steady  as possible during the cruising.
• If this procedure is not completed within 1 minute

Page 1446 of 4083

INFINITI QX56 2008  Factory Service Manual P0131, P0151 A/F SENSOR 1EC-147
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
3. Check voltage between A/F sensor 1 terminal 4 and ground with
CONSULT-III or tester.
OK or NG
OK >>

Page 1447 of 4083

INFINITI QX56 2008  Factory Service Manual EC-148
< COMPONENT DIAGNOSIS >[VK56DE]
P0131, P0151 A/F SENSOR 1
6.REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace malfunctioning air fuel ratio (A/F) sensor 1.
CAUTION:
• Discard any air fuel ratio (

Page 1448 of 4083

INFINITI QX56 2008  Factory Service Manual P0132, P0152 A/F SENSOR 1EC-149
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0132, P0152 A/F SENSOR 1
Component DescriptionINFOID:0000000001351472
The air fuel ratio (A/F) sensor