Nissan Pathfinder. Manual — part 344
DLK-142
< DTC/CIRCUIT DIAGNOSIS >
B2427 ENCODER
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace automatic back door control module. Refer to
DLK-321, "Removal and Installation"
.
4.
CHECK ENCODER POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect spindle unit RH connector.
3. Check voltage between spindle unit RH harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
CHECK ENCODER CIRCUIT
1. Disconnect automatic back door control module connector.
2. Check continuity between automatic back door control module harness connector and spindle unit RH
harness connector.
3. Check continuity between automatic back door control module harness connector and ground.
Is the inspection result normal?
YES
>> Replace automatic back door control module. Refer to
DLK-321, "Removal and Installation"
.
NO
>> Repair or replace harness.
6.
CHECK ENCODER CIRCUIT 2
1. Disconnect automatic back door control module connector.
2. Check continuity between automatic back door control module harness connector and spindle unit RH
harness connector.
3. Check continuity between automatic back door control module harness connector and ground.
Monitor item
Condition
Status
SPINDLE RH ENCODER A
Back door
Moving (auto or manu-
al)
HI
⇔ LO
When stopped
HI or LO
SPINDLE RH ENCODER B
Moving (auto or manu-
al)
HI
⇔ LO
When stopped
HI or LO
(+)
(–)
Voltage
(Approx.)
Spindle unit RH
Connector
Terminal
B162
8
Ground
Battery voltage
Automatic back door control module
Spindle unit RH
Continuity
Connector
Terminal
Connector
Terminal
B55
20
B162
8
Yes
Automatic back door control module
Ground
Continuity
Connector
Terminal
B55
20
No
Automatic back door control module
Spindle unit RH
Continuity
Connector
Terminal
Connector
Terminal
B55
8
B162
3
Yes
9
10
B2427 ENCODER
DLK-143
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace harness.
7.
CHECK ENCODER CIRCUIT 3
1. Connect automatic back door control module spindle unit RH connector.
2. Check continuity between automatic back door control module harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Replace automatic back door control module. Refer to
DLK-321, "Removal and Installation"
.
8.
CHECK INTERMITTENT INCIDENT
GI-49, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace automatic back door control module. Refer to
DLK-321, "Removal and Installation"
.
NO
>> Repair or replace the malfunctioning parts.
Automatic back door control module
Ground
Continuity
Connector
Terminal
B55
8
No
9
Automatic back door control module
Ground
Voltage
(Approx.)
Connector
Terminal
B55
21
0 V
DLK-144
< DTC/CIRCUIT DIAGNOSIS >
B2428 AUTOMATIC BACK DOOR CONTROL UNIT
B2428 AUTOMATIC BACK DOOR CONTROL UNIT
DTC Logic
INFOID:0000000009175681
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000009175682
1.
REPLACE AUTOMATIC BACK DOOR CONTROL MODULE
When DTC [B2428] is detected, replace automatic back door control module.
>> Replace automatic back door control module. Refer to
DLK-321, "Removal and Installation"
.
DTC
CONSULT display
description
DTC detecting condition
Possible cause
B2428
AUTO BACK DR
CNT UNIT
Automatic back door control module detected CPU
malfunction
Automatic back door control module
B242A CLOSURE CONDITION
DLK-145
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
B242A CLOSURE CONDITION
DTC Logic
INFOID:0000000009175683
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Operate back door auto closure operation.
3. Check Self-Diagnostic Result mode of AUTOMATIC BACK DOOR CONTROL MODULE using CONSULT.
Is DTC detected?
YES
>> Refer to
DLK-145, "Diagnosis Procedure"
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009175684
Regarding Wiring Diagram information, refer to
.
1.
CHECK FOR FOREIGN MATERIALS IN BACK DOOR LOCK ASSEMBLY
Check for entry of foreign materials in back door lock assembly.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Remove foreign materials.
2.
CHECK BACK DOOR OPEN/CLOSE OPERATION
Manually check open and close operation of back door.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace the malfunctioning parts.
3.
CHECK MONITOR ITEM
1. Select AUTOMATIC BACK DOOR CONTROL MODULE using CONSULT.
2. Select HALF LATCH SW, OPEN SW and CLOSE SW in DATA MONITOR mode.
3. Check that the function operates normally according to the following conditions.
DTC
CONSULT display
description
DTC detecting condition
Possible cause
B242A
CLSR CONDITION
Automatic back door control module detects mal-
functions of open switch, close switch and half latch
switch when auto closure of back door operates.
• Entry of foreign materials to back
door lock assembly
• Back door mechanism
• Automatic back door control mod-
ule
• Open switch
• Close switch
• Half latch switch
• Harness or connectors
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