Nissan X-Trail 32. Manual — part 275
CHG-16
< DTC/CIRCUIT DIAGNOSIS >
[TYPE 1]
B20BD BATTERY CURRENT SENSOR
DTC/CIRCUIT DIAGNOSIS
B20BD BATTERY CURRENT SENSOR
DTC Description
INFOID:0000000010957606
DTC DETECTION LOGIC
POSSIBLE CAUSE
[CIRC SHORT TO GRND]
• Harness or connectors
- Battery current sensor input signal (Current) circuit is shorted (Ground)
- Battery current sensor power circuit is open
• Battery current sensor
[CIRC SHORT TO BATTERY]
• Harness or connectors
- Battery current sensor input signal (Current) circuit is shorted (Power)
• Battery current sensor
[CIRC OPEN] or [CMPNENT INTERNAL MLFNCTN]
• Battery terminal is not connected
• Harness or connectors
- Battery current sensor input circuit is open
• Battery current sensor
FAIL-SAFE
Stop/start system is inhibited when this DTC is detected.
DTC CONFIRMATION PROCEDURE
1.
PERFORM COMPONENT FUNCTION CHECK
1.
Start engine and wait for 10 seconds or more.
2.
Perform “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT.
Is the inspection result normal?
YES-1 >> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
.
YES-2 >> Confirmation after repair: INSPECTION END
NO
>> Proceed to
Diagnosis Procedure
INFOID:0000000010957607
1.
CHECK DTC
Perform each inspection according to the displayed DTC.
Which DTC is displayed?
[CIRC SHORT TO GRND]>>GO TO 2.
[CIRC SHORT TO BATTERY]>>GO TO 7.
[CIRC OPEN] or [CMPNENT INTERNAL MLFNCTN]>>GO TO 8.
2.
CHECK BATTERY CURRENT SENSOR POWER
DTC
No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
B20BD
CURRENT SENSOR
(Current sensor)
[CIRC SHORT TO GRND]
An excessively low voltage from the sensor is sent to IPDM
E/R.
[CIRC SHORT TO BATTERY]
An excessively high voltage from the sensor is sent to IPDM
E/R.
[CIRC OPEN]
The output voltage of the battery current sensor is lower
than the specified value while the battery voltage is high
enough or the changing of voltage is lower than the speci-
fied value.
[CMPNENT INTERNAL
MLFNCTN]
CHG
B20BD BATTERY CURRENT SENSOR
CHG-17
< DTC/CIRCUIT DIAGNOSIS >
[TYPE 1]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
1.
Turn ignition switch OFF.
2.
Disconnect battery current sensor connector.
3.
Turn ignition switch ON.
4.
Check the voltage between battery current sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK BATTERY CURRENT SENSOR POWER CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R connector.
3.
Check the continuity between battery current sensor harness connector and IPDM E/R harness connec-
tor.
4.
Check the continuity between battery current sensor harness connector and ground.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-60, "Removal and Installation"
.
NO
>> Repair or replace harness.
4.
CHECK BATTERY CURRENT SENSOR GROUND
1.
Turn ignition switch OFF.
2.
Check the continuity between battery current sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
CHECK BATTERY CURRENT SENSOR GROUND CIRCUIT
1.
Disconnect IPDM E/R connector.
2.
Check the continuity between battery current sensor harness connector and IPDM E/R harness connec-
tor.
3.
Check the continuity between battery current sensor harness connector and ground.
(+)
(-)
Voltage (V)
Battery current sensor
Connector
Terminal
F43
4
Ground
Approx. 5
Battery current sensor
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
F43
4
F74
95
Existed
Battery current sensor
—
Continuity
Connector
Terminal
F43
4
Ground
Not existed
Battery current sensor
—
Continuity
Connector
Terminal
F43
2
Ground
Existed
Battery current sensor
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
F43
2
F74
96
Existed
CHG-18
< DTC/CIRCUIT DIAGNOSIS >
[TYPE 1]
B20BD BATTERY CURRENT SENSOR
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-60, "Removal and Installation"
NO
>> Repair or replace harness.
6.
CHECK BATTERY CURRENT INPUT SIGNAL CIRCUIT 1
1.
Disconnect IPDM E/R connector.
2.
Check the continuity between battery current sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Repair or replace harness.
7.
CHECK BATTERY CURRENT INPUT SIGNAL CIRCUIT 2
1.
Turn ignition switch OFF.
2.
Disconnect battery current sensor connector.
3.
Check the voltage between battery current sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Repair or replace harness.
8.
CHECK BATTERY NEGATIVE TERMINAL CONNECTION
Check if battery negative terminal is clean and tight.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair battery negative terminal connection.
9.
CHECK BATTERY CURRENT INPUT SIGNAL CIRCUIT 3
1.
Turn ignition switch OFF.
2.
Disconnect battery current sensor connector and IPDM E/R connector.
3.
Check the continuity between battery current sensor harness connector and IPDM E/R harness connec-
tor.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Repair or replace harness.
10.
CHECK BATTERY CURRENT SENSOR
CHG-19, "Component Inspection"
Battery current sensor
—
Continuity
Connector
Terminal
F43
2
Ground
Not existed
Battery current sensor
—
Continuity
Connector
Terminal
F43
1
Ground
Not existed
(+)
(-)
Voltage (V)
Battery current sensor
Connector
Terminal
F43
1
Ground
0
Battery current sensor
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
F43
1
F74
97
Existed
CHG
B20BD BATTERY CURRENT SENSOR
CHG-19
< DTC/CIRCUIT DIAGNOSIS >
[TYPE 1]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Is the inspection result normal?
YES
>> Refer to
GI-44, "Intermittent Incident"
. If the inspection result of the connector is normal then
replace IPDM E/R. Refer to
PCS-60, "Removal and Installation"
.
NO
>> Replace battery current sensor.
Component Inspection
INFOID:0000000010957608
1.
CHECK BATTERY CURRENT SENSOR
1.
Turn ignition switch OFF.
2.
Reconnect connector which is disconnected
3.
Disconnect battery negative cable.
4.
Install jumper cable between battery negative terminal and body
ground.
5.
Turn ignition switch ON.
6.
Check the voltage between IPDM E/R harness connector termi-
nals as per the following.
Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace battery current sensor.
IPDM E/R
Voltage (V)
Connector
+
–
Terminal
Terminal
F74
97
(Battery current sensor signal)
96
Approx. 2.5
JPBIA3287ZZ
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