Nissan Quest E52. Instruction — part 934
PCS
B2099 IGNITION RELAY OFF STUCK
PCS-33
< DTC/CIRCUIT DIAGNOSIS >
[IPDM E/R]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
B2099 IGNITION RELAY OFF STUCK
Description
INFOID:0000000009652864
• IPDM E/R operates the ignition relay when it receives an ignition switch ON signal from BCM via CAN com-
munication.
• Turn the ignition relay OFF by pressing the push-button ignition switch once when the vehicle speed is 4 km/
h (2.5 MPH) or less.
• Turn the ignition relay OFF with the following operation when the vehicle speed is more than 4 km/h (2.5
MPH) or when an abnormal condition occurs in CAN communication from the unified meter and A/C
amp.(Emergency OFF)
- Press and hold the push-button ignition switch for 2 seconds or more.
- Press the push-button ignition switch 3 times within 1.5 seconds.
NOTE:
The ignition relay does not turn ON for 3 seconds after emergency OFF even if the push-button ignition switch
is pressed.
DTC Logic
INFOID:0000000009652865
DTC DETECTION LOGIC
NOTE:
When IPDM E/R power supply voltage is low (Approx. 7 - 8 V for about 1 second), the “DTC: B2099” may be detected.
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Turn ignition switch OFF and wait 1 second or more.
3.
Check DTC in “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT.
Is DTC detected?
YES
>> Refer to
NO
>> INSPECTION END.
Diagnosis Procedure
INFOID:0000000009652866
1.
CHECK FUSE
Check that all of the fuses installed on the downstream of the contact point side circuit of the ignition relay in
IPDM E/R are not blown.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after replacing the affected circuit if a fuse is blown.
2.
CHECK IGNITION RELAY CONTROL CIRCUIT VOLTAGE
1.
Turn ignition switch ON
2.
Check voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-36, "Removal and Installation"
.
NO
>> GO TO 3.
DTC
CONSULT display
description
DTC Detection Condition
Possible causes
B2099
IGN RELAY OFF
CIRC
The ignition relay OFF is detected for 1 second at ignition switch ON
(CPU monitors the status at the contact and excitation coil circuits of
the ignition relay inside it)
• Fuse
• IPDM E/R
• Battery
(+)
(–)
Voltage
(Approx)
IPDM E/R
Connector
Terminal
E10
27
Ground
0 V
PCS-34
< DTC/CIRCUIT DIAGNOSIS >
[IPDM E/R]
B2099 IGNITION RELAY OFF STUCK
3.
CHECK BATTERY VOLTAGE
Check battery voltage.
Which is the measurement result?
More than 12.4 V>>GO TO 4.
Less than 12.4 V>>Perform battery inspection. Refer to
PG-97, "How to Handle Battery"
.
4.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
>> INSPECTION END
PCS
POWER SUPPLY AND GROUND CIRCUIT
PCS-35
< DTC/CIRCUIT DIAGNOSIS >
[IPDM E/R]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure
INFOID:0000000009652867
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following IPDM E/R fuses or fusible links are not blown.
Is the fuse fusing?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is
blown.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect IPDM E/R connector.
3.
Check voltage between IPDM E/R harness connector and the ground.
Is the measurement value normal?
YES
>> GO TO 3.
NO
>> Repair the harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between IPDM E/R harness connectors and the ground.
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair the harness or connector.
Signal name
Fuses and fusible link No.
Battery power supply
E (80 A)
C (60 A)
H (40 A)
50 (15 A)
51 (15 A)
(+)
(
−
)
Voltage
IPDM E/R
Connector
Terminal
E9
1
Ground
6 – 16 V
2
E10
36
IPDM E/R
Ground
Continuity
Connector
Terminal
E10
12
Existed
E11
41
PCS-36
< REMOVAL AND INSTALLATION >
[IPDM E/R]
IPDM E/R
REMOVAL AND INSTALLATION
IPDM E/R
Exploded View
INFOID:0000000009652868
Removal and Installation
INFOID:0000000009652869
CAUTION:
IPDM E/R integrated relays are not serviceable parts, and must not be removed from the unit.
REMOVAL
1.
Disconnect the battery cable from the negative terminal.
2.
Remove the relay box cover.
3.
Disconnect the harness connector form the IPDM E/R (1).
4.
Press the pawl (A) and remove the IPDM E/R from relay box.
INSTALLATION
Install in the reverse order of removal.
1.
Relay box cover
2.
IPDM E/R
JPMIA0868ZZ
JPMIA0869ZZ
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