Nissan GT-R. Instruction — part 286
SEC-26
< DTC/CIRCUIT DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
VEHICLE SECURITY HORN
VEHICLE SECURITY HORN
Description
INFOID:0000000009163771
Perform answer-back for each operation with horn.
Diagnosis Procedure
INFOID:0000000009163773
1.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check that the following fuse are not fusing.
-
10A fuse [No.10 located in fuse block (J/B)]
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.
CHECK HORN RELAY 2 POWER SUPPLY
1.
Disconnect horn relay 2 connector.
2.
Check voltage between horn relay 2 connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check horn relay 2 power supply circuit.
3.
CHECK VEHICLE SECURITY HORN POWER SUPPLY
1.
Connect horn relay 2 connector.
2.
Turn ignition switch ON.
3.
Perform “ACTIVE TEST” (“HORN”) with CONSULT.
4.
Check voltage between vehicle security horn connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 5.
4.
CHECK VEHICLE SECURITY HORN GROUND
1.
Turn ignition switch OFF.
2.
Disconnect vehicle security horn connector.
3.
Check continuity between vehicle security horn connector and ground.
Is the inspection result normal?
YES
>> Replace vehicle security horn.
NO
>> Repair or replace harness.
5.
CHECK HORN RELAY 2 CIRCUIT
Horn relay 2
Ground
Voltage (V)
(Approx.)
Connector
Terminal
E18
1
Battery voltage
Vehicle security horn
Ground
Test item
Voltage (V)
(Approx.)
Connector
Terminal
E32
1
HORN
ON
Battery voltage
→
0
→
Battery voltage
Other than above
Battery voltage
Vehicle security horn
Ground
Continuity
Connector
Terminal
E33
2
Existed
VEHICLE SECURITY HORN
SEC-27
< DTC/CIRCUIT DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
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1.
Disconnect horn relay 2 connector.
2.
Check continuity between vehicle security horn harness connector and horn relay 2 connector.
3.
Check continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness.
6.
CHECK HORN RELAY 2
Check horn relay 2.
Refer to
SEC-28, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace horn relay 2.
7.
CHECK HORN RELAY 2 CIRCUIT 1
1.
Disconnect diode connector.
2.
Check continuity between diode harness connector and horn relay 2 harness connector.
3.
Check continuity between diode harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace harness.
8.
CHECK HORN RELAY 2 CIRCUIT 2
1.
Disconnect IPDM E/R connector.
2.
Check continuity between diode harness connector and IPDM E/R harness connector.
3.
Check continuity between diode harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 9.
Vehicle security horn
Horn relay 2
Continuity
Connector
Terminal
Connector
Terminal
E32
1
E18
2
Existed
Vehicle security horn
Ground
Continuity
Connector
Terminal
E32
1
Not existed
Diode
Horn relay 2
Continuity
Connector
Terminal
Connector
Terminal
E107
1
E18
3
Existed
Diode
Ground
Continuity
Connector
Terminal
E107
1
Not existed
Diode
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
E107
2
E6
44
Existed
Diode
Ground
Continuity
Connector
Terminal
E107
2
Not existed
SEC-28
< DTC/CIRCUIT DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
VEHICLE SECURITY HORN
NO
>> Repair or replace harness.
9.
CHECK DIODE
Check diode.
Refer to
SEC-28, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-17, "Removal and Installation"
NO
>> Replace diode.
Component Inspection
INFOID:0000000009163774
HORN RELAY 2
1.
CHECK HORN RELAY 2
1.
Turn ignition switch OFF.
2.
Disconnect horn relay 2.
3.
Check horn relay 2.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace horn relay 2.
DIODE
1.
CHECK DIODE
1.
Turn ignition switch OFF.
2.
Disconnect diode.
3.
Check the continuity between diode terminals under the following conditions.
*: For a digital tester.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace diode.
Horn relay 2
Condition
Voltage
(Approx.)
Terminal
2
12 V direct current supply between terminals 1 and 3.
12 V
No current supply
0 V
Terminal
Continuity
(+)*
(-)*
1
2
Existed
2
1
Not existed
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
SEC-29
< DTC/CIRCUIT DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
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INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Wiring Diagram - INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION -
INFOID:0000000009163775
For connector terminal arrangements, harness layouts, and alphabets in a
(option abbreviation; if not
described in wiring diagram), refer to
GI-12, "Connector Information"
JCKWA1293GB
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