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BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY
A
SECTION
SECURITY CONTROL SYSTEM
SEC B
C
D
E
CONTENTS
WITH INTELLIGENT KEY SYSTEM COMMON ITEM ........................................................20
. F
COMMON ITEM : CONSULT-III Function (BCM -
BASIC INSPECTION ................................... 5
. COMMON ITEM) ....................................................20
.
G
DIAGNOSIS AND REPAIR WORKFLOW ......... 5
. IMMU .........................................................................20
.
Work Flow ................................................................ 5
. IMMU : CONSULT-III Function (BCM - IMMU) .......21 .
INSPECTION AND ADJUSTMENT .................... 8
. THEFT ALM ..............................................................21
. H
THEFT ALM : CONSULT-III Function (BCM -
ADDITIONAL SERVICE WHEN REPLACING THEFT ALM) ..........................................................21
.
CONTROL UNIT ......................................................... 8
.
ADDITIONAL SERVICE WHEN REPLACING DIAGNOSIS SYSTEM (INTELLIGENT KEY I
CONTROL UNIT : Special Repair Requirement ...... 8 UNIT) ................................................................. 23
CONSULT-III Function (INTELLIGENT KEY) .........23
.
ECM RE-COMMUNICATING FUNCTION .................. 8 . J
ECM RE-COMMUNICATING FUNCTION : De- COMPONENT DIAGNOSIS ........................ 25
.
scription .................................................................... 8
.
ECM RE-COMMUNICATING FUNCTION : Spe- U1000 CAN COMM CIRCUIT ........................... 25
cial Repair Requirement ........................................... 8 . Description ..............................................................25
. SEC
DTC Logic ...............................................................25
.
FUNCTION DIAGNOSIS .............................. 9
. Diagnosis Procedure ..............................................25 .
L
INTELLIGENT KEY SYSTEM/ENGINE U1010 CONTROL UNIT (CAN) ......................... 26
START FUNCTION ............................................ 9
. Description ..............................................................26
.
System Diagram ....................................................... 9
. DTC Logic ...............................................................26
.
M
System Description .................................................. 9
. Diagnosis Procedure ..............................................26 .
Component Parts Location ..................................... 11
. Special Repair Requirement ...................................26 .
Component Description .......................................... 12
.
B2013 ID DISCORD I-KEY-STRG .................... 27 N
NVIS (NISSAN VEHICLE IMMOBILIZER SYS- Description ..............................................................27
.
TEM-NATS) .......................................................13
. DTC Logic ...............................................................27
.
System Diagram ..................................................... 13
. Diagnosis Procedure ..............................................27 .
O
System Description ................................................ 13
.
Component Parts Location ..................................... 15
. B2190, P1614 NATS ANTENNA AMP. ............ 30
Component Description ......................................... 15
. Description ..............................................................30
.
DTC Logic ...............................................................30
. P
VEHICLE SECURITY SYSTEM ........................17
. Diagnosis Procedure ..............................................30 .
System Diagram ..................................................... 17
.
System Description ................................................ 17
. B2191, P1615 DIFFERENCE OF KEY ............. 33
Component Parts Location ..................................... 18
. Description ..............................................................33
.
Component Description .......................................... 19
. DTC Logic ...............................................................33
.
Diagnosis Procedure ..............................................33 .
DIAGNOSIS SYSTEM (BCM) ...........................20
.
Revision: October 2008 SEC-1 2009 Pathfinder
B2192, P1611 ID DISCORD, IMMU-ECM ........ 34
. BCM (BODY CONTROL MODULE) ................. 52
.
Description ............................................................. 34
. Reference Value .................................................... 52.
DTC Logic .............................................................. 34
. Terminal Layout ..................................................... 55
.
Diagnosis Procedure ............................................. 34 . Physical Values ...................................................... 55
.
Wiring Diagram - NVIS ........................................... 61 .
B2193, P1612 CHAIN OF ECM-IMMU ............. 36
. Wiring Diagram - VEHICLE SECURITY SYSTEM... 68
Description ............................................................. 36
. Fail Safe ................................................................ 77
.
DTC Logic .............................................................. 36
. DTC Inspection Priority Chart .............................. 78 .
Diagnosis Procedure ............................................. 36 . DTC Index ............................................................. 78
.
B2194 ID DISCORD IMMU-I-KEY .................... 37
. INTELLIGENT KEY UNIT ................................. 80
.
Description ............................................................. 37
. Reference Value - Intelligent Key Unit ................... 80 .
DTC Logic .............................................................. 37
. Reference Value - Steering Lock Solenoid ............ 82 .
Diagnosis Procedure ............................................. 37 . Wiring Diagram - INTELLIGENT KEY SYSTEM/
ENGINE START FUNCTION - ............................... 84 .
B2552 INTELLIGENT KEY ............................... 38
.
Fail Safe ................................................................ 98
.
Description ............................................................. 38
.
DTC Inspection Priority Chart .............................. 98 .
DTC Logic .............................................................. 38
.
DTC Index ............................................................. 98
.
Diagnosis Procedure ............................................. 38 .
Special Repair Requirement .................................. 38 . IPDM E/R (INTELLIGENT POWER DISTRI-
B2590 ID DISCORD BCM-I-KEY ...................... 39
. BUTION MODULE ENGINE ROOM) ................ 99
.
Reference Value .................................................... 99.
Description ............................................................. 39
.
Terminal Layout ................................................... 101.
DTC Logic .............................................................. 39
.
Physical Values .................................................... 101
.
Diagnosis Procedure ............................................. 39 .
Wiring Diagram .................................................... 105.
P1610 LOCK MODE ......................................... 40
. Fail Safe .............................................................. 109
.
Description ............................................................. 40
. DTC Index ........................................................... 111
.
DTC Logic .............................................................. 40
.
Diagnosis Procedure ............................................. 40 . SYMPTOM DIAGNOSIS ........................... 112
POWER SUPPLY AND GROUND CIRCUIT .... 41
. INTELLIGENT KEY SYSTEM/ENGINE
START FUNCTION SYMPTOMS .................... 112
.
INTELLIGENT KEY UNIT ........................................ 41
. Symptom Table .................................................... 112
.
INTELLIGENT KEY UNIT : Diagnosis Procedure... 41
VEHICLE SECURITY SYSTEM SYMPTOMS .. 113
BCM .......................................................................... 41
. Symptom Table .................................................... 113
.
BCM : Diagnosis Procedure .................................. 41 .
NISSAN VEHICLE IMMOBILIZER SYSTEM-
KEY CYLINDER SWITCH ................................ 43
. NATS SYMPTOMS .......................................... 114
.
Description ............................................................. 43
. Symptom Table .................................................... 114
.
Component Function Check .................................. 43 .
Diagnosis Procedure ............................................. 43 . ON-VEHICLE MAINTENANCE ................. 115
GLASS HATCH AJAR SWITCH ...................... 45
. PRE-INSPECTION FOR DIAGNOSTIC .......... 115
.
Description ............................................................. 45
. Basic Inspection ................................................... 115
.
Component Function Check ................................ 45 . Vehicle Security Operation Check ....................... 115 .
Diagnosis Procedure ............................................. 45 .
PRECAUTION ........................................... 117
IGNITION KNOB SWITCH ................................ 47
.
Ignition Knob Switch Check ................................... 47
. PRECAUTIONS ............................................... 117
.
Precaution for Supplemental Restraint System
HORN FUNCTION ............................................ 49
. (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
Symptom Table ..................................................... 49
. SIONER" .............................................................. 117
.
Precaution Necessary for Steering Wheel Rota-
VEHICLE SECURITY INDICATOR ................... 50
. tion After Battery Disconnect ............................... 117 .
Description ............................................................. 50
.
Component Function Check ................................ 50 . ON-VEHICLE REPAIR .............................. 118
Diagnosis Procedure ............................................. 50 .
NATS ANTENNA AMP. ................................... 118
.
ECU DIAGNOSIS ....................................... 52
. Removal and Installation ...................................... 118
.
Revision: October 2008 SEC-2 2009 Pathfinder
INTELLIGENT KEY UNIT ................................ 119
. Diagnosis Procedure ............................................ 135
.
Removal and Installation ...................................... 119
. Special Repair Requirement ................................. 135
. A
REMOTE KEYLESS ENTRY RECEIVER ....... 120
. B2190, P1614 NATS ANTENNA AMP. .......... 136
Removal and Installation ...................................... 120
. Description ............................................................ 136
.
DTC Logic ............................................................. 136
. B
WITHOUT INTELLIGENT KEY SYSTEM
Diagnosis Procedure ............................................ 136 .
BASIC INSPECTION ................................ 121
.
B2191, P1615 DIFFERENCE OF KEY ........... 139 C
DIAGNOSIS AND REPAIR WORKFLOW ...... 121
. Description ............................................................ 139
.
Work Flow ............................................................ 121
. DTC Logic ............................................................. 139
.
Diagnosis Procedure ............................................ 139 .
INSPECTION AND ADJUSTMENT ................. 124
. D
B2192, P1611 ID DISCORD, IMMU-ECM ....... 140
ADDITIONAL SERVICE WHEN REPLACING Description ............................................................ 140
.
CONTROL UNIT ..................................................... 124
. DTC Logic ............................................................. 140
. E
ADDITIONAL SERVICE WHEN REPLACING Diagnosis Procedure ............................................ 140 .
CONTROL UNIT : Special Repair Requirement .. 124
B2193, P1612 CHAIN OF ECM-IMMU ............ 142
ECM RE-COMMUNICATING FUNCTION .............. 124 . Description ............................................................ 142
. F
ECM RE-COMMUNICATING FUNCTION : De- DTC Logic ............................................................. 142
.
scription ................................................................ 124
. Diagnosis Procedure ............................................ 142 .
ECM RE-COMMUNICATING FUNCTION : Spe- G
cial Repair Requirement ....................................... 124 . P1610 LOCK MODE ....................................... 143
Description ............................................................ 143
.
FUNCTION DIAGNOSIS ........................... 125
. DTC Logic ............................................................. 143
.
H
Diagnosis Procedure ............................................ 143 .
NVIS (NISSAN VEHICLE IMMOBILIZER SYS-
TEM-NATS) ..................................................... 125
. POWER SUPPLY AND GROUND CIRCUIT .. 144
System Diagram ................................................... 125
. I
System Description .............................................. 125
. BCM ........................................................................ 144
.
Component Parts Location ................................... 126. BCM : Diagnosis Procedure ................................. 144 .
Component Description ....................................... 127
.
KEY CYLINDER SWITCH ............................... 145 J
VEHICLE SECURITY SYSTEM ...................... 128
. Description ............................................................ 145
.
System Diagram ................................................... 128
. Component Function Check ................................. 145 .
System Description .............................................. 128
. Diagnosis Procedure ............................................ 145 . SEC
Component Parts Location ................................... 129.
Component Description ........................................ 130
.
GLASS HATCH AJAR SWITCH ..................... 147
Description ............................................................ 147
.
DIAGNOSIS SYSTEM (BCM) ......................... 131
. Component Function Check ............................... 147 . L
Diagnosis Procedure ............................................ 147 .
COMMON ITEM ...................................................... 131
.
COMMON ITEM : CONSULT-III Function (BCM - HORN FUNCTION ........................................... 149 M
COMMON ITEM) .................................................. 131
. Symptom Table .................................................... 149
.
IMMU ....................................................................... 131
. VEHICLE SECURITY INDICATOR ................. 150
IMMU : CONSULT-III Function (BCM - IMMU) .... 132 . Description ............................................................ 150
. N
Component Function Check ............................... 150 .
THEFT ALM ............................................................ 132
. Diagnosis Procedure ............................................ 150 .
THEFT ALM : CONSULT-III Function (BCM -
O
THEFT ALM) ........................................................ 132
. ECU DIAGNOSIS ...................................... 152
.
COMPONENT DIAGNOSIS ...................... 134
. BCM (BODY CONTROL MODULE) ............... 152
Reference Value ................................................... 152. P
U1000 CAN COMM CIRCUIT .......................... 134
. Terminal Layout .................................................... 155
.
Description ........................................................... 134
. Physical Values .................................................... 155
.
DTC Logic ............................................................ 134
. Wiring Diagram - NVIS - ....................................... 161 .
Diagnosis Procedure ............................................ 134 . Wiring Diagram - VEHICLE SECURITY SYSTEM 165 ..
U1010 CONTROL UNIT (CAN) ....................... 135
. Fail Safe ............................................................... 174
.
DTC Inspection Priority Chart ............................ 175 .
Description ........................................................... 135
.
DTC Index ............................................................ 175
.
DTC Logic ............................................................ 135
.
Revision: October 2008 SEC-3 2009 Pathfinder
IPDM E/R (INTELLIGENT POWER DISTRI- PRE-INSPECTION FOR DIAGNOSTIC .......... 192
.
BUTION MODULE ENGINE ROOM) .............. 177
. Basic Inspection ................................................... 192
.
Reference Value ...................................................177 .
Terminal Layout ....................................................179. PRECAUTION ........................................... 193
Physical Values ....................................................179.
PRECAUTIONS ............................................... 193
.
Wiring Diagram .....................................................183.
Precaution for Supplemental Restraint System
Fail Safe ...............................................................187
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
DTC Index ............................................................189
.
SIONER" .............................................................. 193
.
SYMPTOM DIAGNOSIS ........................... 190
. Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... 193 .
VEHICLE SECURITY SYSTEM SYMPTOMS . 190
Symptom Table ....................................................190
. ON-VEHICLE REPAIR .............................. 194
NISSAN VEHICLE IMMOBILIZER SYSTEM- NATS ANTENNA AMP. ................................... 194
.
NATS SYMPTOMS ......................................... 191
. Removal and Installation ...................................... 194
.
Symptom Table ....................................................191
. REMOTE KEYLESS ENTRY RECEIVER ....... 195
.
ON-VEHICLE MAINTENANCE ................. 192
. Removal and Installation ...................................... 195
.
Revision: October 2008 SEC-4 2009 Pathfinder
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION > [WITH INTELLIGENT KEY SYSTEM]
BASIC INSPECTION A
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow INFOID:0000000003938413
B
OVERALL SEQUENCE
C
D
E
F
G
H
I
J
SEC
L
M
N
O
P
ALKIA0538GB
DETAILED FLOW
Revision: October 2008 SEC-5 2009 Pathfinder
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION > [WITH INTELLIGENT KEY SYSTEM]
1.GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred).
>> GO TO 2
2.CHECK DTC
1. Check DTC for Intelligent Key unit and BCM.
2. Perform the following procedure if DTC is displayed.
- Erase DTC.
- Study the relationship between the cause detected by DTC and the symptom described by the customer.
3. Check related service bulletins for information.
Is any symptom described and any DTC detected?
Symptom is described, DTC is displayed>>GO TO 3
Symptom is described, DTC is not displayed>>GO TO 4
Symptom is not described, DTC is displayed>>GO TO 5
3.CONFIRM THE SYMPTOM
Confirm the symptom described by the customer.
Connect CONSULT-III to the vehicle in "DATA MONITOR" mode and check real-time diagnosis results.
Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 5
4.CONFIRM THE SYMPTOM
Confirm the symptom described by the customer.
Connect CONSULT-III to the vehicle in "DATA MONITOR " mode and check real-time diagnosis results.
Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 6
5.PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC Confirmation Procedure for the displayed DTC, and then check that DTC is detected again.
If two or more DTCs are detected, refer to SEC-98, "DTC Inspection Priority Chart" (Intelligent Key unit),
SEC-78, "DTC Inspection Priority Chart" (BCM) and determine trouble diagnosis order.
Is DTC detected?
YES >> GO TO 8
NO >> Refer to GI-49, "Intermittent Incident".
6.PERFORM BASIC INSPECTION
Perform Basic Inspection. Refer to SEC-115, "Basic Inspection".
>> GO TO 7
7.DETECT MALFUNCTIONING SYSTEM BY SYMPTOM TABLE
Detect malfunctioning system according to Symptom Table based on the confirmed symptom in step 4.
>> GO TO 8
8.DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the system.
NOTE:
The Diagnostic Procedure is described based on open circuit inspection. A short circuit inspection is also
required for the circuit check in the Diagnostic Procedure.
>> GO TO 9
Revision: October 2008 SEC-6 2009 Pathfinder
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION > [WITH INTELLIGENT KEY SYSTEM]
9.REPAIR OR REPLACE THE MALFUNCTIONING PART A
1. Repair or replace the malfunctioning part.
2. Reconnect parts or connectors disconnected during Diagnostic Procedure again after repair and replace-
ment.
B
3. Check DTC. If DTC is displayed, erase it.
>> GO TO 10
C
10.FINAL CHECK
When DTC was detected in step 9, perform DTC Confirmation Procedure or Component Function Check
again, and then check that the malfunctions have been fully repaired. D
When symptom was described by the customer, refer to the confirmed symptom in step 3 or 4, and check that
the symptom is not detected.
Does the symptom reappear? E
YES (DTC is detected)>>GO TO 8
YES (Symptom remains)>>GO TO 6
NO >> Inspection End. F
G
H
I
J
SEC
L
M
N
O
P
Revision: October 2008 SEC-7 2009 Pathfinder
INSPECTION AND ADJUSTMENT
< BASIC INSPECTION > [WITH INTELLIGENT KEY SYSTEM]
INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement INFOID:0000000003938414
Refer to the CONSULT-III Operation Manual-NATS.
ECM RE-COMMUNICATING FUNCTION
ECM RE-COMMUNICATING FUNCTION : Description INFOID:0000000003938415
Performing following procedure can automatically perform re-communication of ECM and BCM, but only when
the ECM has been replaced with a new one (*1).
*1: New one means an ECM which has never been energized on-board.
(In this step, initialization procedure by CONSULT-III is not necessary)
NOTE:
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