Nissan Quest E52. Instruction — part 1098
SEC-82
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2603 SHIFT POSITION
B2603 SHIFT POSITION
DTC Logic
INFOID:0000000009650743
DTC DETECTION LOGIC
NOTE:
• If DTC B2603 is displayed with DTC B2601, first perform the trouble diagnosis for DTC B2601. Refer to
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE 1
1.
Shift the selector lever to the P position.
2.
Turn ignition switch ON and wait 1 second or more.
3.
Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE 2
1.
Shift the selector lever to any position other than P, and wait 1 second or more.
2.
Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009650744
1.
INSPECTION START
Perform inspection in accordance with procedure that confirms DTC.
Which procedure confirms DTC?
DTC confirmation procedure 1>>GO TO 2.
DTC confirmation procedure 2>>GO TO 6.
2.
CHECK DTC OF TCM
Check DTC in “Self Diagnostic Result” mode of “TCM” using CONSULT.
Is DTC detected?
YES
>> Perform the trouble diagnosis related to the detected DTC. Refer to
NO
>> GO TO 3.
3.
CHECK BCM INPUT SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between BCM harness connector and ground.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible causes
B2603
SHIFT POSI STATUS
BCM detects the following status when ignition
switch is in the ON position.
• P/N position signal from TCM: approx. 0 V
(Other than P/N position)
• CVT shift selector (detention switch) signal:
approx. 0 V (P position)
• Harness or connector
[CVT shift selector (detention switch)
circuit is open or shorted.]
• Harness or connectors
(TCM circuit is open or shorted.)
• CVT shift selector (detention switch)
• TCM
• BCM
B2603 SHIFT POSITION
SEC-83
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 5.
4.
REPLACE BCM
1.
Replace BCM. Refer to
BCS-98, "Removal and Installation"
.
2.
Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.
>> INSPECTION END
5.
CHECK BCM INPUT SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect TCM connector.
3.
Disconnect BCM connector.
4.
Check continuity between transmission range switch harness connector and BCM harness connector.
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Repair or replace harness.
6.
CHECK CVT SHIFT SELECTOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect CVT shift selector (detention switch) connector.
3.
Check voltage between CVT shift selector (detention switch) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> GO TO 7.
7.
CHECK CVT SHIFT SELECTOR POWER SUPPLY CIRCUIT
1.
Disconnect BCM connector.
2.
Check continuity between CVT shift selector (detention switch) harness connector and BCM harness con-
nector.
3.
Check continuity between CVT shift selector (detention switch) harness connector and ground.
(+)
(–)
Condition
Voltage (V)
(Approx.)
BCM
Connector
Terminal
M124
102
Ground
Selector lever
P or N position
9 - 16
Other than above
0 - 1.5
TCM
BCM
Continuity
Connector
Terminal
Connector
Terminal
F23
20
M124
102
Existed
(+)
(–)
Voltage (V)
(Approx.)
CVT shift selector (detention switch)
Connector
Terminal
M57
8
Ground
9 - 16
CVT shift selector (detention switch)
BCM
Continuity
Connector
Terminal
Connector
Terminal
M57
8
M124
104
Existed
SEC-84
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2603 SHIFT POSITION
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace harness.
8.
REPLACE BCM
1.
Replace BCM. Refer to
BCS-98, "Removal and Installation"
.
2.
Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.
>> INSPECTION END
9.
CHECK CVT SHIFT SELECTOR CIRCUIT
1.
Check continuity between CVT shift selector (detention switch) harness connector and BCM harness con-
nector.
2.
Check continuity between CVT shift selector (detention switch) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Repair or replace harness.
10.
CHECK CVT SHIFT SELECTOR (DETENTION SWITCH)
SEC-84, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Replace CVT shift selector. Refer to
TM-154, "Removal and Installation"
11.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000009650745
1.
CHECK CVT SHIFT SELECTOR (DETENTION SWITCH)
1.
Turn ignition switch OFF.
2.
Disconnect CVT shift selector connector.
3.
Check continuity between CVT shift selector (detention switch) terminals.
CVT shift selector (detention switch)
Ground
Continuity
Connector
Terminal
M57
8
Not existed
CVT shift selector (detention switch)
BCM
Continuity
Connector
Terminal
Connector
Terminal
M57
9
M121
37
Existed
CVT shift selector (detention switch)
Ground
Continuity
Connector
Terminal
M57
9
Not existed
CVT shift selector (detention switch)
Condition
Continuity
Terminal
8
9
Selector lever: P position
Selector button: Released
Not existed
Selector button: Pressed
Existed
Selector lever: Except P position
B2603 SHIFT POSITION
SEC-85
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace CVT shift selector. Refer to
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