2005 RS Service Manual
Contents
1. DIAG NOSIS OR SERVICE FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCI DENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY 1 Check the fused B fuse in the Integrated Power Module IPM If OK go to Step 2 If not OK repair the shorted circuit or component as required and replace the faulty fuse 8W 97 4 POWER OUTLET Continued 2 Check for battery voltage at the fused B fuse in the IPM If OK go to Step 3 If not OK repair the open fused B circuit to the IPM fuse as required 3 Open the power outlet door Check for continu ity between the inside circumference of the power outlet receptacle and a good ground There should be continuity If OK go to Step 4 If not OK go to Step 5 4 Check for battery voltage at the insulated con tact located at the back of the power outlet recepta cle If not OK go to Step 5 5 Disconnect and isolate the battery negative cable Remove the appropriate bezel Check for conti nuity between the ground circuit cavity of the power outlet wire harness connector and a good ground There should be continuity If OK go to Step 6 If not OK repair the open ground circuit to ground as required 6 Connect the battery negative cable Check for battery voltage at the fused B circuit cavity of the power outlet wire harness connector If OK replace the faulty power outlet receptacle If not OK repair the open fused B circuit to the IPM fuse as required RE2. MODULE The IPM provides the primary means of voltage dis tribution and protection for the entire vehicle OPERATION All of the current from the battery and the gener ator output enters the Integrated Power Module IPM through a four pin connector on the bottom of the module Internal connections of all of the power distribution center circuits is accomplished by a com bination of bus bars and a printed circuit board REMOVAL 1 Disconnect the negative and positive battery cables 2 Remove the battery thermal guard 3 Remove the battery Refer to 8 ELECTRI CAL BATTERY SYSTEM BATTERY REMOVAL 4 Using a flat bladed screwdriver twist the Inte grated Power Module IPM bracket retaining latch outward to free the IPM from its mounting bracket Fig 2 5 Rotate the IPM counter clockwise to access and disconnect the electrical connectors Fig 3 6 Remove the IPM bracket clips from the hinge INSTALLATION 1 Snap the left side of the Integrated Power M od ule IPM housing in its mounting bracket and con nect the various electrical connectors ny Olo DA o Dp OS CO 0 80958397 Fig 3 DISCONNECTING IPM 1 INTEGRATED POWER MODULE NOTE Ensure that the Connector Positive Assur ance CPA on the five pin B connector is posi tively engaged to prevent generating a Diagnostic Trouble Code DTC 2 Rotate the IPM clock wise until secured in mounting bra
3. MOVAL 1 Disconnect and isolate the battery negative cable 2 Note position of the retaining bosses Fig 4 3 Using external snap ring pliers with 90 degree tips Insert pliers with tips against bosses and squeeze forcing bosses out of base 4 Pull out the base through mounting ring by gently rocking pliers 5 Disconnect the base wires 6 Remove light ring and disconnect wire INSTALLATION 1 Position the mounting ring on the instrument panel and feed the wires through the ring Index the 8W 97 POWER DISTRIBUTION SYSTEM RS 80a8eadd Fig 4 POWER OUTLET RETAINING BOSSES ENGAGE PLIERS HERE PARTIALLY REMOVED EXTERNAL SNAP RING PLIERS PULL BASE OUT THROUGH MOUNTING RING WOOD cap and the mounting ring with the index tab at the 9 o clock position to the key in the instrument panel Install the ring 2 Connect the wires to the base Orientate the base alignment rib at the 11 o clock position to mate the groove in the mounting ring to the base 3 Push the base into the bezel until it locks in place 4 Check operation of outlet or element and install the outlet cap
4. RS _ 8W 97 POWER DISTRIBUTION SYSTEM 8W 97 POWER DISTRIBUTION SYSTEM TABLE OF CONTENTS page POWER DISTRIBUTION SYSTEM DESCRIPTION OPERATION SPECIAL TOOLS POWER DISTRIBUTION SYSTEMS INTEGRATED POWER MODULE DESCRIPTION OPERATION REMOVAL INSTALLATION POWER DISTRIBUTION SYSTEM DESCRIPTION The power distribution system for this vehicle con sists of the following components e Integrated Power Module IPM e Front Control Module FCM e Power Outlets Refer to Wiring Diagrams for complete circuit sche matics The power distribution system also incorporates various types of circuit control and protection fea tures including e Automatic resetting circuit breakers Blade type fuses Bus bars Cartridge fuses Circuit splice blocks Flashers Fusible links e Relays OPERATION The power distribution system for this vehicle is designed to provide safe reliable and centralized dis tribution points for the electrical current required to operate all of the many standard and optional facto ry installed electrical and electronic powertrain chassis safety security comfort and convenience sys tems At the same time the power distribution sys tem was designed to provide ready access to these electrical distribution points for the vehicle techni cian to use when conducting diagnosis and repair of faulty circuits The power distribution system can also prove useful for the sourcing of a
5. cket An audible click may be heard 3 Install the battery Refer to 8 ELECTRICAL BATTERY SYSTEM BATTERY INSTALLATION 4 Install the battery thermal guard RS _ 8W 97 POWER DISTRIBUTION SYSTEM INTEGRATED POWER MODULE Continued 5 Connect the negative and positive battery cables 6 Using a scan tool check for any stored diagnos tic trouble codes Ensure that all vehicle options are operational IOD FUSE DESCRIPTION All vehicles are equipped with an Ignition Off Draw IOD fuse that is removed from its normal cavity in the Integrated Power Module IPM when the vehicle is shipped from the factory Dealer per sonnel are to remove the IOD fuse from the storage location and install it into the IPM fuse cavity marked IOD as part of the preparation procedures performed just prior to new vehicle delivery The IOD fuse is a 20 ampere blade type mini fuse and when removed it is stored in a fuse cavity adja cent to the washer fuse within the IPM OPERATION The term ignition off draw IOD identifies a nor mal condition where power is being drained from the battery with the ignition switch in the Off position The IOD fuse feeds the memory and sleep mode func tions for some of the electronic modules in the vehicle as well as various other accessories that require bat tery current when the ignition switch is in the Off position including the clock The only reason the 1OD fuse is remo
6. dditional elec trical circuits that may be required to provide the 8W 97 1 page IOD FUSE DESCRIPTION scab ed wed one eae ee ie es 3 OPERATION sesira de tig diate a 3 POWER OUTLET DESGRIPTION ees cdvernev eaves wees aidas 3 OPERATION 2 segregate irene pee wees 3 DIAGNOSIS AND TESTING DIAGNOSIS amp TESTING POWER OUTLET 3 REMOVAL INSTALLATION electrical current needed to operate many accessories that the vehicle owner may choose to have installed SPECIAL TOOLS POWER DISTRIBUTION SYSTEMS ee Terminal Pick Kit 6680 INTEGRATED POWER MODULE DESCRIPTION The Integrated Power Module IPM is a combina tion of the Power Distribution Center PDC and the Front Control Module FCM The IPM is located in the engine compartment next to the battery Fig 1 The PDC mates directly with the FCM to form the IPM The PDC is a printed circuit board based mod ule that contains fuses and relays while the FCM contains the electronics controlling the IPM and other functions This IPM connects directly to the battery positive through a four pin connector The ground connection is through two other connectors 8W 97 2 aS 809628ee Fig 1 INTEGRATED POWER MODULE 1 BATTERY THERMAL GUARD 2 INTEGRATED POWER MODULE 3 FRONT CONTROL MODULE 8W 97 POWER DISTRIBUTION SYSTEM RS INTEGRATED POWER MODULE Continued 8095837e Fig 2 INTEGRATED POWER
7. hould be tested and recharged at regular intervals during the vehicle storage period to prevent the battery from becoming discharged or damaged POWER OUTLET DESCRIPTION Two power outlets are installed in the instrument panel center lower bezel Two additional power out lets are incorporated into the left rear C pillar and the center console if equipped The power outlets bases are secured by a snap fit A hinged plug flips closed to conceal and protect the power outlet base when not in use OPERATION The power outlet base or receptacle shell is con nected to ground and an insulated contact in the bottom of the shell is connected to battery current The power outlet on the instrument panel marked with a battery receives battery voltage from a fuse in the Integrated Power Module IPM at all times The other power outlet on the instrument panel marked with a key receives battery voltage only when the key is in the on position The power outlet located in the center console receives battery voltage all the time when positioned between the front seats and key on voltage when positioned between the rear seats The power outlet located on the C pillar receives battery voltage only when the key is in the ON position DIAGNOSIS AND TESTING DIAGNOSIS amp TESTING POWER OUTLET WARNING ON VEHICLES EQUIPPED WITH AIR BAGS REFER TO RESTRAINTS BEFORE ATTEMPT ING ANY STEERING WHEEL STEERING COLUMN SEAT OR INSTRUMENT PANEL COMPONENT
8. ved is to reduce the normal IOD of the vehicle electrical system during new vehide transportation and predelivery storage to reduce battery depletion while still allowing vehicle opera tion so that the vehicle can be loaded unloaded and moved as needed by both vehicle transportation com pany and dealer personnel The IOD fuse is removed from the Integrated Power Module IPM fuse cavity when the vehicle is shipped from the assembly plant Dealer personnel must install the IOD fuse when the vehicle is being prepared for delivery in order to restore full electrical system operation Once the vehicle is prepared for delivery the IOD function of this fuse becomes trans parent and the fuse that has been assigned the IOD designation becomes only another Fused B circuit fuse The IOD fuse serves no useful purpose to the dealer technician in the service or diagnosis of any vehicle system or condition other than the same pur pose as that of any other standard circuit protection device The IOD fuse can be used by the vehicle owner as a convenient means of reducing battery depletion when a vehicle is to be stored for periods not to exceed approximately thirty days However it must 8W 97 3 be remembered that removing the IOD fuse will not eliminate IOD but only reduce this normal condition If a vehicle will be stored for more than thirty days the battery negative cable should be disconnected to eliminate normal IOD and the battery s
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