2006 INFINITI M35 Factory Service Manual

Page 2601 of 5621

INFINITI M35 2006  Factory Service Manual EC-1058
[VK45DE]
DTC P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
Revision: 2006 January2006 M35/M45
Specification data are reference values and are measured between each terminal and ground.
Pulse sig

Page 2602 of 5621

INFINITI M35 2006  Factory Service Manual DTC P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
EC-1059
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 January2006 M35/M45
BANK 2
TBWT1023E

Page 2603 of 5621

INFINITI M35 2006  Factory Service Manual EC-1060
[VK45DE]
DTC P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
Revision: 2006 January2006 M35/M45
Specification data are reference values and are measured between each terminal and ground.
Pulse sig

Page 2604 of 5621

INFINITI M35 2006  Factory Service Manual DTC P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
EC-1061
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 January2006 M35/M45
Diagnostic ProcedureNBS005FG
1. CHECK EXHAUST GAS LEAK
1. Start engine and

Page 2605 of 5621

INFINITI M35 2006  Factory Service Manual EC-1062
[VK45DE]
DTC P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
Revision: 2006 January2006 M35/M45
3. CHECK AIR FUEL RATIO (A/F) SENSOR 1 INPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconne

Page 2606 of 5621

INFINITI M35 2006  Factory Service Manual DTC P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
EC-1063
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 January2006 M35/M45
4. CHECK FUEL PRESSURE
1. Release fuel pressure to zero. Refer to EC-809,

Page 2607 of 5621

INFINITI M35 2006  Factory Service Manual EC-1064
[VK45DE]
DTC P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
Revision: 2006 January2006 M35/M45
OK or NG
OK >> GO TO 10.
NG >> Perform trouble diagnosis for EC-1420, "
FUEL INJECTOR" .
8.

Page 2608 of 5621

INFINITI M35 2006  Factory Service Manual DTC P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
EC-1065
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 January2006 M35/M45
9. CHECK FUNCTION OF FUEL INJECTOR-II
Provide  battery  voltage  between