Infiniti QX56 (Z62). Manual — part 1298
A/T POSITION
TM-101
< BASIC INSPECTION >
[7AT: RE7R01B]
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A/T POSITION
Inspection
INFOID:0000000006226794
1.
Place selector lever in “P” position, and turn ignition switch ON (engine stop).
2.
Check that selector lever can be shifted to other than “P” position when brake pedal is depressed. Also
check that selector lever can be shifted from “P” position only when brake pedal is depressed.
3.
Shift the selector lever and check for excessive effort, sticking, noise or rattle.
4.
Confirm that the selector lever stops at each position by feeling the engagement when it is moved through
all the positions. Check whether or not the actual position the selector lever matches the position shown
by the shift position indicator and the A/T body.
5.
The method of operating the lever to individual positions cor-
rectly is shown in the figure.
6.
When selector button is pressed in “P”, “R”, or “N” position with-
out applying forward/backward force to selector lever, check but-
ton operation for sticking.
7.
Confirm that the back-up lamps illuminate only when lever is
placed in the “R” position. Confirm that the back-up lamps do not
illuminate when selector lever is pushed against “R” position in
the “P” or “N” position.
8.
Confirm that the engine can only be started with the selector
lever in the “P” and “N” positions. (With selector lever in the “P”
position, engine can be started even when selector lever is
moved forward and backward.)
9.
Make sure that A/T is locked completely in “P” position.
10. When selector lever is set to manual shift gate, make sure that manual mode is displayed on combination
meter.
In addition, a set shift position must be changed when the selector lever is shifted to the “+” or “
−
” side in
the manual mode. (Only while driving.)
Adjustment
INFOID:0000000006379166
1.
Shift selector lever in “P” position.
2.
Loosen nut (1).
3.
Turn the manual lever (2) all the way in the “P” range direction
[
(A)].
4.
Hold and push the control cable (3) in the vehicle front direction
[
(B)], and tighten the nut by hand with cable set in free condi-
tion.
CAUTION:
Be careful not put any load to manual lever.
NOTE:
Press control cable with a force of 9.8 N (approximately 1 kg, 2.2
lb).
5.
Tighten nut to specified torque. Refer to
.
JSDIA0790GB
JSDIA1587ZZ
TM-102
< DTC/CIRCUIT DIAGNOSIS >
[7AT: RE7R01B]
U0300 CAN COMMUNICATION DATA
DTC/CIRCUIT DIAGNOSIS
U0300 CAN COMMUNICATION DATA
Description
INFOID:0000000006226795
The amount of data transmitted from each control unit is read.
DTC Logic
INFOID:0000000006226796
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
CHECK DTC DETECTION
With CONSULT-III
1.
Turn ignition switch ON and wait 2 seconds or more.
2.
Perform “Self Diagnostic Results” in “TRANSMISSION”.
Is “U0300” detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006226797
1.
CHECK CONTROL UNIT
Check the number of control units replaced before detecting “U0300”.
Is the number of replaced control units one?
YES
>> Since the replaced control unit may be out of specifications, check the part number and specifica-
tions.
NO
>> GO TO 2.
2.
INSPECTION CONTROL UNIT
With CONSULT-III
1.
Remove one of the replaced control units.
2.
Install the previous control unit mounted before replacement.
3.
Turn ignition switch ON and wait 2 seconds or more.
4.
Perform “Self Diagnostic Results” in “TRANSMISSION”.
Is “U0300” detected?
YES
>> Turn OFF the ignition switch to check the other control units in the same method.
NO
>> Since the removed control unit may be out of specifications, check the part number and specifica-
tions.
DTC
Trouble diagnosis name
DTC is detected if...
Possible cause
U0300
Internal Control Module Soft-
ware Incompatibility
When the amount of data trans-
mitted from each control unit is
smaller than the specified
amount.
Control units other than TCM.
U1000 CAN COMM CIRCUIT
TM-103
< DTC/CIRCUIT DIAGNOSIS >
[7AT: RE7R01B]
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U1000 CAN COMM CIRCUIT
Description
INFOID:0000000006226798
CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independently). In CAN communication, control units are con-
nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
DTC Logic
INFOID:0000000006226799
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” is previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before performing the next test.
>> GO TO 2.
2.
CHECK DTC DETECTION
With CONSULT-III
1.
Start the engine.
2.
Run engine for at least 2 consecutive seconds at idle speed.
3.
Perform “Self Diagnostic Results” in “TRANSMISSION”.
With GST
Follow the procedure “With CONSULT-III”
Is “U1000” detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006226800
LAN-18, "Trouble Diagnosis Flow Chart"
.
DTC
Trouble diagnosis name
DTC is detected if...
Possible cause
U1000
CAN Communication Line
TCM is not transmitting or re-
ceiving CAN communication
signal for 2 seconds or more.
• Harness or connectors
(CAN communication line is
open or shorted.)
• TCM
TM-104
< DTC/CIRCUIT DIAGNOSIS >
[7AT: RE7R01B]
P0615 STARTER RELAY
P0615 STARTER RELAY
Description
INFOID:0000000006226801
TCM prohibits cranking other than at “P” or “N” position.
DTC Logic
INFOID:0000000006226802
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” is previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before performing the next test.
>> GO TO 2.
2.
CHECK DTC DETECTION
With CONSULT-III
1.
Shift the selector lever to “P” and “N” positions.
2.
Turn ignition switch ON and wait 2 seconds or more.
3.
Perform “Self Diagnostic Results” in “TRANSMISSION”.
Is “P0615” detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006226803
1.
CHECK STARTER RELAY SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between IPDM E/R connector terminal and ground.
Is the inspection result normal?
YES
>> Check starter relay circuit. Refer to
.
NO
>> GO TO 2.
2.
CHECK HARNESS BETWEEN A/T ASSEMBLY AND IPDM E/R (PART 1)
1.
Turn ignition switch OFF.
2.
Disconnect A/T assembly connector and IPDM E/R connector.
3.
Check the continuity between A/T assembly vehicle side harness connector terminal and IPDM E/R vehi-
cle side harness connector terminal.
DTC
Trouble diagnosis name
DTC is detected if...
Possible cause
P0615
Starter Relay Circuit
The starter monitor value is
OFF when the ignition switch is
ON at the “P” and “N” positions.
• Harness or connectors
(Starter relay and TCM circuit
is open or shorted.)
• Starter relay circuit
IPDM E/R connector
Ground
Condition
Voltage (Approx.)
Connector
Terminal
E15
48
Selector lever in “P” and
“N” positions.
Battery voltage
Selector lever in other
positions.
0 V
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