2006 INFINITI QX56 Factory Service Manual

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Page 1321 of 3383

INFINITI QX56 2006 Factory Service Manual EC-110Revision: November 2009
TROUBLE DIAGNOSIS
2006 QX56
66 RSensor ground
(Throttle position sensor) [Engine is running]Warm-up condition
Idle speed
Approximately 0V
67 B Sensor ground [Engine is

Page 1322 of 3383

INFINITI QX56 2006 Factory Service Manual TROUBLE DIAGNOSISEC-111
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Revision: November 2009 2006 QX5682 B/RSensor ground
(APP sensor 1) [Engine is running]Warm-up condition
Idle speed
Approximately 0V
83 G/W Sensor g

Page 1323 of 3383

INFINITI QX56 2006 Factory Service Manual EC-112Revision: November 2009
TROUBLE DIAGNOSIS
2006 QX56
101 R/W Stop lamp switch[Ignition switch: OFF]Brake pedal: Fully released
Approximately 0V
[Ignition switch: OFF]
Brake pedal: Slightly depr

EC-112Revision: November 2009
TROUBLE DIAGNOSIS
2006 QX56
101 R/W Stop lamp switch[Ignition switch: OFF]Brake pedal: Fully released
Approximately 0V
[Ignition switch: OFF]
Brake pedal: Slightly depressed BATTERY VOLTAGE
(11 - 14V)
102 GR/R PNP switch [Ignition switch: ON]
Selector lever: P or N
Approximately 0V
[Ignition switch: ON]
Except the above gear position BATTERY VOLTAGE
(11 - 14V)
104 O Throttle control motor relay [Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON] 0 - 1.0V
106 BR/W Accelerator pedal position
sensor 1 [Ignition switch: ON]
Engine: Stopped
Accelerator pedal: Fully released
0.5 - 1.0V
[Ignition switch: ON]
Engine: Stopped
Accelerator pedal: Fully depressed 4.2 - 4.8V
107 V/R Fuel tank temperature sensor [Engine is running]Approximately 0 - 4.8V
Output voltage varies with fuel
tank temperature.
108 BR/W ICC brake switch
(Models with ICC system)
ASCD brake switch
(Models with ASCD system) [Ignition switch: ON]
Brake pedal: Slightly depressed
Approximately 0V
[Ignition switch: ON]
Brake pedal: Fully released BATTERY VOLTAGE
(11 - 14V)
109 L/W Ignition switch [Ignition switch: OFF]
0V
[Ignition switch: ON] BATTERY VOLTAGE
(11 - 14V)
111 W / B ECM relay
(Self shut-off) [Engine is running]
[Ignition switch: OFF]
For a few seconds after turning ignition
switch OFF
0 - 1.5V
[Ignition switch: OFF]
More than a few seconds after turning igni-
tion switch OFF BATTERY VOLTAGE
(11 - 14V)
113 GR Fuel pump relay [Ignition switch: ON]
For 1 second after turning ignition switch
ON
[Engine is running] 0 - 1.5V
[Ignition switch: ON]
More than 1 second after turning ignition
switch ON BATTERY VOLTAGE
(11 - 14V)
11 5
11 6 B
B/W
ECM ground [Engine is running]
Idle speed Body ground
11 7 L / Y EVAP canister vent control
valve
[Ignition switch: ON] BATTERY VOLTAGE
(11 - 14V)
11 9
120 BR
BR
Power supply for ECM
[Ignition switch: ON] BATTERY VOLTAGE
(11 - 14V)
121 W Power supply for ECM
(Back-up) [Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14V)
TER-
MINAL NO. WIRE
COLOR ITEM
CONDITION DATA (DC Voltage)

Page 1324 of 3383

INFINITI QX56 2006 Factory Service Manual TROUBLE DIAGNOSISEC-113
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Revision: November 2009 2006 QX56
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

Page 1325 of 3383

INFINITI QX56 2006 Factory Service Manual EC-114Revision: November 2009
TROUBLE DIAGNOSIS
2006 QX56
CONSULT-II Function (ENGINE)UBS00L0B
FUNCTION
*: The following emission-related diagnostic information is cleared when the ECM memory is erase

Page 1326 of 3383

INFINITI QX56 2006 Factory Service Manual TROUBLE DIAGNOSISEC-115
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Revision: November 2009 2006 QX56
ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
ItemDIAGNOSTIC TEST MODE
WORK SUP-
PORT SELF-DIAGNOSTIC

Page 1327 of 3383

INFINITI QX56 2006 Factory Service Manual EC-116Revision: November 2009
TROUBLE DIAGNOSIS
2006 QX56
X: Applicable
*1: This item includes 1st trip DTCs.
*2: This mode includes 1st trip freeze frame data or freeze frame data. The items appear o

Page 1328 of 3383

INFINITI QX56 2006 Factory Service Manual TROUBLE DIAGNOSISEC-117
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Revision: November 2009 2006 QX56
5. Touch “ENGINE”.
If “ENGINE ” is not indicated, go to GI-40, "
CONSULT-II Data
Link Connector (DLC) Circu

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