Nissan Altima L32. Instruction — part 1242
SEC-118
< COMPONENT DIAGNOSIS >
[COUPE]
KEY CYLINDER SWITCH
Is the inspection result normal?
YES
>> Replace main power window and door lock/unlock switch. Refer to
.
NO
>> GO TO 2
2.
CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door lock assembly LH (key cylinder switch) connector.
3. Check continuity between door lock assembly LH (key cylinder
switch) connector and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT
1. Disconnect BCM connector M18.
2. Check continuity between door lock assembly LH (key cylinder
switch) connector D(10) terminals 5, 6 and BCM connector M18
(B) terminals 34, 56.
3. Check continuity between door lock assembly LH (key cylinder
switch) connector D10 (A) terminals 5, 6 and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace harness.
4.
CHECK DOOR KEY CYLINDER SWITCH
Check door key cylinder switch.
SEC-118, "Component Inspection"
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-42, "Intermittent Incident"
.
NO
>> Replace door lock assembly LH (key cylinder switch). Refer to
Component Inspection
INFOID:0000000004206140
COMPONENT INSPECTION
1.
CHECK DOOR KEY CYLINDER SWITCH
Door lock assembly LH con-
nector
Terminal
Ground
Continuity
D10
4
Yes
LIIA0566E
Door lock assembly
LH connector
Terminal
BCM connector
Terminal
Continuity
A: D10
5
B: M18
34
Yes
6
56
Door lock assembly
LH connector
Terminal
Ground
Continuity
A: D10
5
No
6
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KEY CYLINDER SWITCH
SEC-119
< COMPONENT DIAGNOSIS >
[COUPE]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
Check door lock assembly LH (key cylinder switch).
Is the inspection result normal?
YES
>> Key cylinder switch is OK.
NO
>> Replace door lock assembly LH (key cylinder switch). Refer to
.
Terminal
Key position
Continuity
Door lock assembly LH (key cylinder switch)
5
4
Unlock
Yes
Neutral / Lock
No
6
Lock
Yes
Neutral / Unlock
No
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SEC-120
< COMPONENT DIAGNOSIS >
[COUPE]
HORN
HORN
Description
INFOID:0000000004206141
Horn (high/low) is located inside of front bumper and operates when theft warning system is in alarm phase.
Component Function Check
INFOID:0000000004206142
1.
CHECK FUNCTION
1. Select HORN in “ACTIVE TEST” mode with CONSULT-III.
2. Check the horn (high/low) operation.
Is the operation normal?
YES
>> Inspection End.
NO
>> Refer to
SEC-120, "Diagnosis Procedure"
.
Diagnosis Procedure
INFOID:0000000004206143
1.
CHECK HORN FUNCTION
Check horn function with horn switch
Do the horns sound?
YES
>> GO TO 2
NO
>> Refer to
HRN-3, "Wiring Diagram - Coupe"
2.
CHECK HORN RELAY POWER SUPPLY
1. Turn ignition switch ON.
2. Perform “ACTIVE TEST” (“HORN”) with CONSULT-Ill.
3. Using an analog voltmeter or an oscilloscope, check voltage
between IPDM E/R connector E17 terminal 44 and ground.
Is the inspection result normal?
YES
>> Repair or replace harness between IPDM E/R and horn relay.
NO
>> GO TO 3.
3.
CHECK HORN RELAY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and horn relay connector.
Test item
Description
HORN
ON
Horn relay
ON (for 20 ms)
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IPDM E/R
Ground
Test item
Voltage (V)
(Approx.)
Connector
Terminal
E17
44
Ground
HORN
ON
Battery voltage
→0 → Battery voltage
Other than above
Battery voltage
HORN
SEC-121
< COMPONENT DIAGNOSIS >
[COUPE]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
3. Check continuity between IPDM E/R harness connector and
horn relay harness connector.
4. Check continuity between IPDM E/R harness connector and
ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace harness.
4.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R.Refer to
PCS-48, "Removal and Installation"
.
NO
>> Repair or replace the malfunctioning part.
IPDM E/R
Horn relay
Continuity
Connector
Terminal
Connector
Terminal
A: E17
44
B: H-1
1
Yes
IPDM E/R
Ground
Continuity
Connector
Terminal
A: E17
44
Ground
No
ALKIA0425ZZ
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