Nissan Sentra. Manual — part 684
PCS
B2618 BCM
PCS-89
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK VOLTAGE OF IGNITION RELAY-1 CONTROL SIGNAL CIRCUIT (IPDM E/R SIDE)
1. Connect IPDM E/R connector.
2. Check voltage between IPDM E/R connector E39 and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-73, "Removal and Installation"
NO
>> Replace IPDM E/R.
BCM
Ground
Continuity
Connector
Terminal
M83
73
No
(+)
(–)
Condition
Voltage (V)
(Approx.)
IPDM E/R
Connector
Terminal
E39
68
Ground
Ignition switch
OFF
Battery voltage
PCS-90
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
B261A PUSH-BUTTON IGNITION SWITCH
B261A PUSH-BUTTON IGNITION SWITCH
DTC Logic
INFOID:0000000009755879
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM SELF DIAGNOSTIC RESULT
1. Press the push-button ignition switch under the following conditions, and wait for at least 1 second.
-
CVT selector lever is in the P (park) or N (neutral) position.
-
Release the brake pedal.
2. Perform self diagnostic result.
Is DTC B261A detected?
YES
>> Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009755880
Regarding Wiring Diagram information, refer to
.
1.
CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL (PUSH-BUTTON IGNITION SWITCH)
1. Disconnect push-button ignition switch connector.
2. Check voltage between push-button ignition switch connector M25 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)
Check voltage between IPDM E/R connector E39 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace IPDM E/R. Refer to
PCS-30, "Removal and Installation"
3.
CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector E39 and BCM connector M83.
3. Check continuity between IPDM E/R connector E39 and push-button ignition switch connector M25.
CONSULT Display
DTC Detection Condition
Possible Cause
PUSH-BUTTON IGNITION
SWITCH
[B261A]
BCM detects a difference of signal for 1 second or
more between the following information:
• Power supply position by push-button ignition
switch.
• Power supply position from IPDM E/R (CAN).
• Harness or connectors
• Push-button ignition switch
• BCM
Push-button ignition switch
Ground
Voltage
(Approx.)
Connector
Terminal
M25
8
—
Battery voltage
IPDM E/R
Ground
Voltage
(Approx.)
Connector
Terminal
E39
66
—
Battery voltage
PCS
B261A PUSH-BUTTON IGNITION SWITCH
PCS-91
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
4. Check continuity between IPDM E/R connector E39 and ground.
Is the inspection result normal?
YES
>> Refer to
GI-39, "Intermittent Incident"
.
NO
>> Repair or replace harness or connectors.
4.
CHECK IGNITION SWITCH OUTPUT SIGNAL (BCM)
Check voltage between BCM connector M83 and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace BCM. Refer to
BCS-73, "Removal and Installation"
5.
CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)
1. Turn ignition switch OFF.
2. Disconnect BCM connector M83 and IPDM E/R connector E39.
3. Check continuity between BCM connector M83 and push-button ignition switch connector M25.
4. Check continuity between BCM connector M83 and ground.
Is the inspection result normal?
YES
>> Refer to
GI-39, "Intermittent Incident"
.
NO
>> Repair or replace harness or connectors.
IPDM E/R
Push-button ignition switch
Continuity
Connector
Terminal
Connector
Terminal
E39
66
M25
8
Yes
IPDM E/R
Ground
Continuity
Connector
Terminal
E39
66
—
No
BCM
Ground
Voltage
(Approx.)
Connector
Terminal
M83
55
—
Battery voltage
BCM
Push-button ignition switch
Continuity
Connector
Terminal
Connector
Terminal
M83
55
M25
8
Yes
BCM
Ground
Continuity
Connector
Terminal
M83
55
—
No
PCS-92
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
B26F1 IGNITION RELAY
B26F1 IGNITION RELAY
DTC Logic
INFOID:0000000009755881
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON, and wait for 2 seconds or more.
2. Check “Self-diagnosis result” with CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009755882
Regarding Wiring Diagram information, refer to
.
1.
CHECK IPDM E/R SELF-DIAGNOSTIC RESULT
1. Turn ignition switch ON.
2. Erase the DTC of IPDM E/R.
3. Turn ignition switch OFF.
4. Turn ignition switch ON and check the DTC again.
Is DTC detected?
YES
>> Repair or replace the malfunctioning part. Refer to
NO
>> GO TO 2.
2.
CHECK IGNITION RELAY-1 CONTROL SIGNAL (IPDM E/R)
Check voltage between BCM connector M83 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace BCM. Refer to
BCS-73, "Removal and Installation"
3.
CHECK IGNITION RELAY-1 CONTROL SIGNAL CIRCUIT (IPDM E/R)
1. Turn ignition switch OFF.
2. Disconnect BCM connector M83 and IPDM E/R connector M39.
3. Check continuity between BCM connector M83 and IPDM E/R connector E39.
Is the inspection result normal?
CONSULT Display
DTC detecting condition
Possible cause
IGN RELAY OFF
[B26F1]
BCM transmits the ignition relay control signal, but
does not receive ignition switch ON signal (CAN)
from IPDM E/R.
• Harness or connectors
• BCM
• IPDM E/R
(+)
(–)
Condition
Voltage (V)
(Approx.)
BCM
Connector
Terminal
M83
73
Ground
Ignition switch
ON
0
BCM
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
M83
73
E39
68
Yes
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