Nissan Maxima. Manual — part 892
PCS-48
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
B260A IGNITION RELAY
B260A IGNITION RELAY
Description
INFOID:0000000010049426
BCM turns ON the following relays to ignition power supply to each ECU when the ignition switch is turned
ON.
• Ignition relay-1 (inside IPDM E/R)
• Ignition relay-2 (inside fuse block (J/B))
• Front blower motor relay
BCM checks any ignition relay ON request for consistency with the actual ignition relay operation status.
DTC Logic
INFOID:0000000010049427
DTC DETECTION LOGIC
NOTE:
• If DTC B260A is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
.
• If DTC B260A is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
.
• If DTC B260A is displayed with DTC B261A, first perform the trouble diagnosis for DTC B261A. Refer to
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON under the following conditions, and wait for at least 2 seconds.
-
CVT selector lever is in the P or N position.
-
Release the brake pedal.
2. Check “Self diagnostic result” with CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010049428
Regarding Wiring Diagram information, refer to
1.
CHECK DATA MONITOR
1. Turn ignition switch ON.
2. Check IGN RLY1-REQ and IGN RLY status with CONSULT. Refer to
PCS-13, "CONSULT Function (IPDM
Do IGN RLY1-REQ and IGN RLY signals change as expected?
YES
>> Refer to
GI-41, "Intermittent Incident"
.
NO
>> IGN RLY1-REQ does not change. GO TO 2.
NO
>> IGN RLY does not change. GO TO 3.
2.
CHECK CAN COMMUNICATION
Check CAN communication. Refer to
LAN-24, "CAN System Specification Chart"
.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-79, "Removal and Installation"
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B260A
IGNITION RELAY
BCM detects a difference of signal for 2 seconds or
more between the following information.
• Ignition relay-1 (ON/OFF) operation
• Ignition relay-1 feedback
• Harness or connectors
(Ignition relay-1 operation circuit is
open or shorted.)
PCS
B260A IGNITION RELAY
PCS-49
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
NO
>> Repair harness of connector.
3.
CHECK IGNITION RELAY-1 SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between IPDM E/R harness connector and
ground.
3. Turn ignition switch ON.
4. Check voltage between IPDM E/R harness connector and
ground.
Are the inspection results normal?
YES
>> Replace IPDM E/R. Refer to
NO
>> Repair harness of connector.
(+)
(–)
Voltage
IPDM E/R
Connector
Terminal
E18
27
Ground
Battery voltage
AWMIA1120ZZ
(+)
(–)
Voltage
IPDM E/R
Connector
Terminal
E18
27
Ground
0 V
AWMIA1121ZZ
PCS-50
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
B2614 ACC RELAY CIRCUIT
B2614 ACC RELAY CIRCUIT
Description
INFOID:0000000010049429
BCM controls the various electrical components and simultaneously supplies power according to the power
supply position.
BCM checks the power supply position internally.
DTC Logic
INFOID:0000000010049430
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn the power supply position to ACC under the following conditions, and wait for at least 1 second.
-
CVT selector lever is in the P or N position.
-
Release the brake pedal.
2. Check “Self diagnostic result” with CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010049431
Regarding Wiring Diagram information, refer to
1.
CHECK ACCESSORY RELAY-1 POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect accessory relay-1.
3. Check voltage between accessory relay-1 harness connector
and ground under the following conditions.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> GO TO 2
2.
CHECK ACCESSORY RELAY-1 POWER SUPPLY CIRCUIT-1
1. Turn ignition switch OFF.
2. Disconnect BCM harness connector.
3. Check continuity between accessory relay-1 harness connector and BCM harness connector.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2614
ACC relay circuit
An immediate operation of ACC relay-1 is request-
ed by BCM, but there is no response for more than
1 second.
• Harness or connectors
(ACC relay-1 circuit is open or
shorted)
• ACC-1 relay
Accessory relay-
1
Ground
Condition
Voltage (V)
Terminal
2
Ground
Ignition
OFF
0
ACC
Battery voltage
ALMIA0443ZZ
PCS
B2614 ACC RELAY CIRCUIT
PCS-51
< 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 accessory relay-1 harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6
NO
>> Repair or replace harness.
3.
CHECK ACCESSORY RELAY-1 GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between accessory relay-1 harness connector
and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace harness.
4.
CHECK ACCESSORY RELAY-1 POWER SUPPLY CIRCUIT-2
Check voltage between accessory relay-1 harness connector and
ground.
Is the inspection result normal?
YES
>> GO TO 5
NO
>> Repair or replace harness.
5.
CHECK ACCESSORY RELAY-1
PCS-51, "Component Inspection (Accessory Relay-1)"
.
YES or NO
YES
>> GO TO 6
NO
>> Replace accessory relay-1.
6.
CHECK INTERMITTENT INCIDENT
GI-41, "Intermittent Incident"
.
>> Inspection End.
Component Inspection (Accessory Relay-1)
INFOID:0000000010049432
1.
CHECK ACCESSORY RELAY-1
1. Turn ignition switch OFF.
2. Remove accessory relay-1.
Accessory relay-1
BCM
Continuity
Terminal
Connector
Terminal
2
M19
83
Yes
Accessory relay-1
Ground
Continuity
Terminal
2
Ground
No
Accessory relay-1
Ground
Continuity
Terminal
1
Ground
Yes
ALMIA0445ZZ
Accessory relay-1
Ground
Voltage (V)
Terminal
3
Ground
Battery voltage
ALMIA0441ZZ
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст