
ELECTRICAL & POWER CONTROL
PCS
A
B
SECTION
POWER CONTROL SYSTEM C
D
E
CONTENTS
IPDM E/R U1000 CAN COMM CIRCUIT ........................... 18 F
Description ..............................................................18
.
BASIC INSPECTION ................................... 2
. DTC Logic ...............................................................18
.
Diagnosis Procedure ..............................................18 . G
DIAGNOSIS AND REPAIR WORKFLOW ......... 2
.
Work Flow ................................................................ 2
. POWER SUPPLY AND GROUND CIRCUIT .... 19
Diagnosis Procedure ..............................................19
.
FUNCTION DIAGNOSIS .............................. 5
. H
ECU DIAGNOSIS ........................................ 20
.
RELAY CONTROL SYSTEM ............................. 5
.
System Diagram ....................................................... 5
. IPDM E/R (INTELLIGENT POWER DISTRI- I
System Description .................................................. 6
. BUTION MODULE ENGINE ROOM) ................ 20
Component Parts Location ....................................... 7
. Reference Value .....................................................20.
Terminal Layout ......................................................22
.
POWER DISTRIBUTION SYSTEM .................... 8
. Physical Values ......................................................22
. J
System Description .................................................. 8
.
Wiring Diagram .......................................................26
.
Component Parts Location ....................................... 8
.
Fail Safe .................................................................29
.
Component Description ........................................... 8
. K
DTC Index ..............................................................31
.
POWER CONTROL SYSTEM ............................ 9
.
PRECAUTION ............................................. 32
.
System Diagram ....................................................... 9
.
System Description .................................................. 9
. PRECAUTIONS ................................................. 32 L
Precaution for Supplemental Restraint System
SIGNAL BUFFER SYSTEM ..............................10
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
System Diagram ..................................................... 10
.
SIONER" ................................................................32
. PCS
System Description ................................................ 10
.
POWER CONSUMPTION CONTROL SYS- ON-VEHICLE REPAIR ................................ 33
.
TEM ...................................................................11
. BCM (BODY CONTROL MODULE) ................. 33 N
System Diagram ..................................................... 11
. Removal and Installation ........................................33
.
System Description ................................................ 11
.
Component Parts Location ..................................... 12
. REMOVAL AND INSTALLATION .............. 34
. O
DIAGNOSIS SYSTEM (IPDM E/R) ....................13
. IPDM E/R (INTELLIGENT POWER DISTRI-
Diagnosis Description ............................................ 13
. BUTION MODULE ENGINE ROOM) ................ 34
CONSULT - III Function (IPDM E/R) ...................... 15 . Removal and Installation of IPDM E/R ...................34
. P
COMPONENT DIAGNOSIS ........................ 18
.
Revision: October 2008 PCS-1 2009 Xterra
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION > [IPDM E/R]
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow INFOID:0000000004095164
OVERALL SEQUENCE
I L J H / 0/ 0F A
@
DETAILED FLOW
Revision: October 2008 PCS-2 2009 Xterra
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION > [IPDM E/R]
1. GET INFORMATION FOR SYMPTOM A
Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred).
B
>> GO TO 2
2. CHECK DTC
C
1. Check DTC.
2. Perform the following procedure if DTC is displayed.
- Record DTC and freeze frame data.
- Erase DTC. D
- 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? E
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 F
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. G
Verify relationship between the symptom and the condition when the symptom is detected.
>> GO TO 5 H
4. CONFIRM THE SYMPTOM
Confirm the symptom described by the customer. I
Connect CONSULT-III to the vehicle in "DATA MONITOR " mode and check real time diagnosis results.
Verify relationship between the symptom and the condition when the symptom is detected.
J
>> GO TO 6
5. PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC Confirmation Procedure for the displayed DTC, and then check that DTC is detected again. K
At this time, always connect CONSULT-III to the vehicle, and check diagnostic results in real time.
NOTE: