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PCS


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ELECTRICAL & POWER CONTROL

                                                                                                                                                                   A




                                                                                  SECTION
                                                                      POWER CONTROL SYSTEM
                                                                                                              PCS                                                  B



                                                                                                                                                                   C


                                                                                                                                                                   D


                                                                                                                                                                   E
                                                                 CONTENTS
                              IPDM E/R                                             Physical Values ......................................................19
                                                                                                                                                          .        F
                                                                                   Wiring Diagram .......................................................23
                                                                                                                                                          .
FUNCTION DIAGNOSIS .............................. 3
                                             .                                     Fail Safe .................................................................26
                                                                                                                                                          .
                                                                                   DTC Index ..............................................................28
                                                                                                                                                          .        G
RELAY CONTROL SYSTEM ............................. 3
                                             .
  System Diagram ....................................................... 3
                                                                  .              PRECAUTION ............................................. 29
                                                                                                                                      .
  System Description .................................................. 4
                                                                  .
  Component Parts Location ....................................... 5
                                                                  .              PRECAUTIONS ................................................. 29                  H
                                                                                   Precaution for Supplemental Restraint System
POWER CONTROL SYSTEM ............................ 6
                                            .                                      (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
  System Diagram ....................................................... 6
                                                                  .                SIONER" ................................................................29
                                                                                                                                                       .           I
  System Description .................................................. 6
                                                                  .
                                                                                 REMOVAL AND INSTALLATION .............. 30
                                                                                                                     .
SIGNAL BUFFER SYSTEM ............................... 7
                                               .
  System Diagram ....................................................... 7
                                                                  .              IPDM E/R (INTELLIGENT POWER DISTRI-                                               J
  System Description .................................................. 7
                                                                  .              BUTION MODULE ENGINE ROOM) ................ 30
                                                                                   Removal and Installation of IPDM E/R ...................30
                                                                                                                                       .
POWER CONSUMPTION CONTROL SYS-                                                           POWER DISTRIBUTION SYSTEM                                                 K
TEM .................................................................... 8
                                                                   .
  System Diagram ....................................................... 8
                                                                  .              BASIC INSPECTION .................................. 31
                                                                                                                                 .
  System Description .................................................. 8
                                                                  .
  Component Parts Location ....................................... 9
                                                                  .              DIAGNOSIS AND REPAIR WORKFLOW ........ 31                                         L
                                                                                   Work Flow ...............................................................31
                                                                                                                                                        .
DIAGNOSIS SYSTEM (IPDM E/R) ....................10
                                            .
  Diagnosis Description ............................................ 10
                                                                .                FUNCTION DIAGNOSIS ............................. 34 PCS
                                                                                                                              .
  CONSULT - III Function (IPDM E/R) ...................... 12   .
                                                                                 POWER DISTRIBUTION SYSTEM ................... 34
COMPONENT DIAGNOSIS ........................ 15
                                         .                                         System Description .................................................34
                                                                                                                                                   .
                                                                                   Component Parts Location .....................................34.               N
U1000 CAN COMM CIRCUIT ............................15
                                               .                                   Component Description .........................................34
                                                                                                                                                   .
  Description ............................................................. 15
                                                                       .
  DTC Logic .............................................................. 15
                                                                       .         DIAGNOSIS SYSTEM (BCM) ........................... 35                             O
  Diagnosis Procedure .............................................. 15.
                                                                                 COMMON ITEM ........................................................35
                                                                                                                                                 .
POWER SUPPLY AND GROUND CIRCUIT .....16
                                 .                                                COMMON ITEM : Diagnosis Description ...............35          .
  Diagnosis Procedure .............................................. 16
                                                                .                 COMMON ITEM : CONSULT-III Function ..............35            .                 P

ECU DIAGNOSIS ........................................ 17
                                                   .                             COMPONENT DIAGNOSIS ........................ 36
                                                                                                                          .
IPDM E/R (INTELLIGENT POWER DISTRI-                                              U1000 CAN COMM CIRCUIT ........................... 36
BUTION MODULE ENGINE ROOM) ................17
                                       .                                           Description ..............................................................36
                                                                                                                                                         .
  Reference Value .................................................... 17
                                                                   .               DTC Logic ...............................................................36
                                                                                                                                                         .
  Terminal Layout ..................................................... 19
                                                                   .               Diagnosis Procedure ..............................................36  .

Revision: April 2007                                                      PCS-1                                                                  2008 Titan
POWER SUPPLY AND GROUND CIRCUIT .... 37
                                 .                                                   DTC Index ............................................................. 38
                                                                                                                                                         .

BCM .......................................................................... 37
                                                                           .        IPDM E/R (INTELLIGENT POWER DISTRI-
 BCM : Diagnosis Procedure .................................. 37           .        BUTION MODULE ENGINE ROOM) ................ 39
                                                                                                                            .
 BCM : Special Repair Requirement ....................... 37               .         Reference Value .................................................... 39.
                                                                                     Terminal Layout ..................................................... 39
                                                                                                                                                            .
IPDM E/R (INTELLIGENT POWER DISTRIBU-                                                Physical Values ...................................................... 39
                                                                                                                                                            .
TION MODULE ENGINE ROOM) ............................ 37                  .
                                                                                     Wiring Diagram ...................................................... 39
                                                                                                                                                            .
  IPDM E/R (INTELLIGENT POWER DISTRIBU-                                              Fail Safe ................................................................ 39
                                                                                                                                                            .
  TION MODULE ENGINE ROOM) : Diagnosis Pro-
                                                                                     DTC Index ............................................................. 39
                                                                                                                                                            .
  cedure .................................................................... 37
                                                                          .
                                                                                    ON-VEHICLE MAINTENANCE .................. 40
ECU DIAGNOSIS ....................................... 38
                                                  .
                                                                                    PRE-INSPECTION FOR DIAGNOSTIC ........... 40
                                                                                                                          .
BCM (BODY CONTROL MODULE) ................. 38
                                        .                                            Basic Inspection ..................................................... 40
                                                                                                                                                        .
  Reference Value .................................................... 38
                                                                    .
  Terminal Layout ..................................................... 38
                                                                    .               ON-VEHICLE REPAIR ............................... 41
  Physical Values ..................................................... 38
                                                                    .
  Wiring Diagram ...................................................... 38
                                                                    .               BCM (BODY CONTROL MODULE) ................. 41
                                                                                                                            .
  DTC Inspection Priority Chart ............................. 38    .                Removal and Installation ........................................ 41
                                                                                                                                                   .




Revision: April 2007                                                         PCS-2                                                                  2008 Titan
                          RELAY CONTROL SYSTEM
< FUNCTION DIAGNOSIS >                              [IPDM E/R]

FUNCTION DIAGNOSIS                                                           A
RELAY CONTROL SYSTEM
System Diagram                                     INFOID:0000000001667597
                                                                             B



                                                                             C


                                                                             D


                                                                             E



                                                                             F


                                                                             G


                                                                             H



                                                                              I


                                                                             J



                                                                             K


                                                                             L



                                                                             PCS



                                                                             N



                                                                             O



                                                                             P




                                                 AWMIA0045GB



         *: If equipped

Revision: April 2007             PCS-3                   2008 Titan
                                              RELAY CONTROL SYSTEM
< FUNCTION DIAGNOSIS >                                                                                                [IPDM E/R]
System Description                                                                                                 INFOID:0000000001667598



IPDM E/R activates the internal control circuit to perform the relay ON-OFF control according to the input sig-
nals from various sensors and the request signals received from control units via CAN communication.
CAUTION:
IPDM E/R integrated relays cannot be removed.

                                                                                                                        Reference
          Control relay                   Input/output                   Transmit unit           Control part
                                                                                                                          page
  Front fog lamp relay*          Front fog lamp request signal    BCM (CAN)              Front fog lamps                 EXL-13
  



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