2009 INFINITI QX56 200

LAN
TROUBLE DIAGNOSISLAN-51
< FUNCTION DIAGNOSIS > [CAN]
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Never replace the unit even when “NG” is indicated on the “INITIAL DIAG” at this stage. Fo
llow the trouble diagnosis proce-
dures.
IPDM E/R
0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF→ ON)
*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.
DTC IndexINFOID:0000000003776456
ITEMCAN DIAG SUP-
PORT MNTR Description Normal
Error
PRSNT PAST PRSNT PAST
IPDM-E TRANSMIT DIAG Signal transmission status
OKOK
or
1 – 39
*UNKWN 0
ECM Signal receiving status from the ECM
BCM/SEC Signal receiving status from the BCM
DTC Self-diagnosis item
(CONSULT-III indication) DTC detection condition
Inspection
U1000 CAN COMM CIRCUIT When ECM is not transmitting or receiving CAN com-
munication signal of OBD (emission-related diagnosis)
for 2 seconds or more.
Refer to LAN-36
.
When a control unit (except for ECM) is not transmitting
or receiving CAN communication signal for 2 seconds
or more.
U1001 CAN COMM CIRCUIT When ECM is not transmitting or receiving CAN com-
munication signal other than OBD (emission-related di-
agnosis) for 2 seconds or more.
U1002 SYSTEM COMM When a control unit is not transmitting or receiving CAN
communication signal for 2 seconds or less. Start the inspection. Refer
to the applicable section
of the indicated control
unit.
U1010 CONTROL UNIT(CAN) When an error is detected during the initial diagnosis for
CAN controller of each control unit. Replace the control unit
indicating “U1010”.
Revision: December 20092009 QX56

LAN-52
< COMPONENT DIAGNOSIS >[CAN]
CAN COMMUNICATION SYSTEM
COMPONENT DIAGNOSIS
CAN COMMUNICATION SYSTEM
Component Parts LocationINFOID:0000000003776457
1. ECM E16
2. IPDM E/R E122 3. ICC sensor E42
4. AV control unit M45 5. Combination meter M246. ABS actuator and electric unit (con-
trol unit) E125
7. Intelligent Key unit M70 8. BCM M189. Data link connector M22
10. Steering angle sensor M17 11. Driver seat control unit B202 12. ICC unit B13
13. Air bag diagnosis sensor unit M35 14. A/T assembly F9 15. A/C auto amp. M50
16. Transfer control unit E142
AWMIA0011ZZ
Revision: December 20092009 QX56

LAN
CAN COMMUNICATION SYSTEMLAN-53
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Wiring Diagram - CAN SYSTEM -INFOID:0000000003776458
AAMWA0005GB
Revision: December 20092009 QX56

LAN-54
< COMPONENT DIAGNOSIS >[CAN]
CAN COMMUNICATION SYSTEM
ALMWA0061GB
Revision: December 20092009 QX56

LAN
CAN COMMUNICATION SYSTEMLAN-55
< COMPONENT DIAGNOSIS > [CAN]
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AAMIA0012GB
Revision: December 20092009 QX56

LAN-56
< COMPONENT DIAGNOSIS >[CAN]
CAN COMMUNICATION SYSTEM
AAMIA0013GB
Revision: December 20092009 QX56

LAN
CAN COMMUNICATION SYSTEMLAN-57
< COMPONENT DIAGNOSIS > [CAN]
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AAMIA0014GB
Revision: December 20092009 QX56

LAN-58
< COMPONENT DIAGNOSIS >[CAN]
CAN COMMUNICATION SYSTEM
AAMIA0015GB
Revision: December 20092009 QX56