2010 INFINITI QX56 Factory Service Manual

automatic transmission fluid brake light heater oil change water pump brakes

Load previous 8 pages

Page 2849 of 4210

INFINITI QX56 2010 Factory Service Manual MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MWI-87
< ECU DIAGNOSIS >
C
D E
F
G H
I
J
K L
M B A
O P
ABMIA1042GB
Revision: April 20092010 QX56

Page 2850 of 4210

INFINITI QX56 2010 Factory Service Manual MWI-88
< ECU DIAGNOSIS >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Fail Safe
INFOID:0000000005380668
CAN COMMUNICATION CONTROL
When CAN communication with ECM and BCM is impossible,

Page 2851 of 4210

INFINITI QX56 2010 Factory Service Manual MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MWI-89
< ECU DIAGNOSIS >
C
D E
F
G H
I
J
K L
M B A
O P
If No CAN Communication Is Available With BCM
IGNITION RELAY MALFUNCTION DETECTI

MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MWI-89
< ECU DIAGNOSIS >
C
D E
F
G H
I
J
K L
M B A
O P
If No CAN Communication Is Available With BCM
IGNITION RELAY MALFUNCTION DETECTION FUNCTION
• IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it.
• IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation
coil circuit.
• If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to alert the user to the ignition relay malfunction when the ignition switch is turned OFF.
NOTE:
The tail lamp turns OFF when the ignition switch is turned ON.
FRONT WIPER CONTROL
IPDM E/R detects front wiper stop posit ion by a front wiper auto stop signal.
When a front wiper auto stop signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 second activation and 20 second stop five times.
NOTE:
This operation status can be confirmed on the IPDM E/R “DATA MONITOR” that displays “Block” for the item
“WIP PROT” while the wiper is stopped.
STARTER MOTOR PROTECTION FUNCTION
IPDM E/R turns OFF the starter control relay to protect the starter motor when the starter control relay remains
active for 90 seconds.
Control part Fail-safe in operation
Cooling fan • Turns ON the cooling fan relay when the ignition switch is turned ON
• Turns OFF the cooling fan relay when the ignition switch is turned OFF
Control part
Fail-safe in operation
Headlamp • Turns ON the headlamp low relay when the ignition switch is turned ON
• Turns OFF the headlamp low relay when the ignition switch is turned OFF
• Headlamp high LH/RH relays OFF
•Parking lamps
• License plate lamps
• Tail lamps • Turns ON the tail lamp relay when the ignition switch is turned ON
• Turns OFF the tail lamp relay when the ignition switch is turned OFF
Front wiper • The status just before activation of fail-safe control is maintained until the ignition
switch is turned OFF while the front wiper is operating at LO or HI speed.
• The wiper is operated at LO speed until the ignition switch is turned OFF if the fail- safe control is activated while the front wipe r is set in the INT mode and the front wiper
motor is operating.
Rear window defogger Rear window defogger relay OFF
A/C compressor A/C relay OFF
Front fog lamps Front fog lamp relay OFF
Ignition switch Ignition relayTail lamp relay
ON ON —
OFF OFF —
Ignition switchFront wiper switch Auto stop signal
ON OFF
Front wiper stop position signal cannot be
input 10 seconds.
ON The signal does not change for 10 seconds.
Revision: April 20092010 QX56

Page 2852 of 4210

INFINITI QX56 2010 Factory Service Manual MWI-90
< ECU DIAGNOSIS >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
DTC Index
INFOID:0000000005380669
NOTE:
The details of TIME display are as follows.
• CRNT: The malfunctions tha

Page 2853 of 4210

INFINITI QX56 2010 Factory Service Manual MWI
THE FUEL GAUGE POINTER DOES NOT MOVEMWI-91
< SYMPTOM DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B A
O P
SYMPTOM DIAGNOSIS
THE FUEL GAUGE POINTER DOES NOT MOVE
DescriptionINFOID:0000000005146115
Fuel gauge n

Page 2854 of 4210

INFINITI QX56 2010 Factory Service Manual MWI-92
< SYMPTOM DIAGNOSIS >
THE FUEL GAUGE POINTER DOES NOT MOVE TO "F" WHEN REFUELING
THE FUEL GAUGE POINTER DOES NO T MOVE TO "F" WHEN REFUEL-
ING
DescriptionINFOID:0000000005146117
The fuel gauge

Page 2855 of 4210

INFINITI QX56 2010 Factory Service Manual MWI
THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON
MWI-93
< SYMPTOM DIAGNOSIS >
C
D E
F
G H
I
J
K L
M B A
O P
THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON
DescriptionINFOID:0000000005146119
The oil

Page 2856 of 4210

INFINITI QX56 2010 Factory Service Manual MWI-94
< SYMPTOM DIAGNOSIS >
THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF
THE OIL PRESSURE WARNING LA MP DOES NOT TURN OFF
DescriptionINFOID:0000000005146121
The oil pressure warning lamp remains i

Load next 8 pages

Page: < prev 1-10 ... 2817-2824 2825-2832 2833-2840 2841-2848 2849-2856 2857-2864 2865-2872 2873-2880 2881-2888 ... 4216 next >

fuse box bolt pattern remove seats adding oil suspension air bleeding