2007 INFINITI QX56 Factory Service Manual

Page 1521 of 3061

INFINITI QX56 2007  Factory Service Manual EC-438
< SERVICE INFORMATION >
DTC P0550 PSP SENSOR
3. Check voltage between PSP sensor terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connectors.
3.C

Page 1522 of 3061

INFINITI QX56 2007  Factory Service Manual DTC P0550 PSP SENSOR
EC-439
< SERVICE INFORMATION >
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3. Check voltage between ECM terminal 12 and ground under the
following conditions.
Removal and InstallationINFOID:0

Page 1523 of 3061

INFINITI QX56 2007  Factory Service Manual EC-440
< SERVICE INFORMATION >
DTC P0603 ECM POWER SUPPLY
DTC P0603 ECM POWER SUPPLY
Component DescriptionINFOID:0000000003531952
Battery voltage is supplied to the ECM even when the ignition switch
i

Page 1524 of 3061

INFINITI QX56 2007  Factory Service Manual DTC P0603 ECM POWER SUPPLY
EC-441
< SERVICE INFORMATION >
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Wiring DiagramINFOID:0000000003531955
Specification data are reference values and are measured between each te

Page 1525 of 3061

INFINITI QX56 2007  Factory Service Manual EC-442
< SERVICE INFORMATION >
DTC P0603 ECM POWER SUPPLY
Diagnosis Procedure
INFOID:0000000003531956
1.CHECK ECM POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Chec

Page 1526 of 3061

INFINITI QX56 2007  Factory Service Manual DTC P0603 ECM POWER SUPPLY
EC-443
< SERVICE INFORMATION >
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1. Replace ECM.
2. Perform initialization of IVIS(NATS) system and registration of all IVIS(NATS) ignition key

Page 1527 of 3061

INFINITI QX56 2007  Factory Service Manual EC-444
< SERVICE INFORMATION >
DTC P0605 ECM
DTC P0605 ECM
Component DescriptionINFOID:0000000003531957
The ECM consists of a microcomputer and connectors for signal
input and output and for power sup

Page 1528 of 3061

INFINITI QX56 2007  Factory Service Manual DTC P0605 ECM
EC-445
< SERVICE INFORMATION >
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PROCEDURE FOR MALFUNCTION B
 With CONSULT-II
1. Turn ignition switch ON and wait at least 1 second.
2. Select “DATA MONIT