Symptom:
*NO RESPONSE FROM PCM (PCI BUS) - NGC
POSSIBLE CAUSES
PCM PCI NO RESPONSE
POWERTRAIN CONTROL MODULE
PCI BUS CIRCUIT OPEN
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
NOTE: As soon as one or more module communicates with the DRB, answer
the question.
With the DRB, enter Body then Electro/Mechanical Cluster (MIC).
With the DRB, enter Passive Restraints then Airbag.
Were you able to establish communications with any of the modules?
All
Yes
→
Go To
2
No
→
Refer to symptom PCI Bus Communication Failure in the Com-
munications category.
Perform (NGC) POWERTRAIN VERIFICATION TEST VER - 1.
2
With the DRB read the Powertrain DTC’s. This is to ensure power and grounds to the
PCM are operational.
NOTE: If the DRB will not read PCM DTC’s, follow the NO RESPONSE TO
PCM (PCM SCI only) symptom path.
Turn the ignition off.
Disconnect the PCM harness connectors.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRB. Attach the
red and black leads and the cable to probe adapter to the scope input cable.
With the DRBIII
t
select Pep Module Tools.
Select lab scope.
Select Live Data.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the appropriate terminal of special tool #8815.
Turn the ignition on.
Observe the voltage display on the DRB Lab Scope.
Does the voltage pulse from 0 to approximately 7.5 volts?
All
Yes
→
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform (NGC) POWERTRAIN VERIFICATION TEST VER - 1.
No
→
Repair the PCI Bus circuit for an open.
Perform (NGC) POWERTRAIN VERIFICATION TEST VER - 1.
283
COMMUNICATION
Содержание Ram 2004
Страница 14: ...NOTES xiv...
Страница 35: ...7 0 DIAGNOSTIC INFORMATION AND PROCEDURES 21...
Страница 570: ...NOTES 556...
Страница 571: ...8 0 COMPONENT LOCATIONS 8 1 AIRBAG SYSTEM C O M P O N E N T L O C A T I O N S 557 COMPONENT LOCATIONS...
Страница 572: ...8 2 AUDIO 8 2 1 AMPLIFIER 8 3 HEATING A C C O M P O N E N T L O C A T I O N S 558 COMPONENT LOCATIONS...
Страница 574: ...NOTES 560...
Страница 596: ...C O N N E C T O R P I N O U T S 582 CONNECTOR PINOUTS...
Страница 600: ...C O N N E C T O R P I N O U T S 586 CONNECTOR PINOUTS...
Страница 602: ...C O N N E C T O R P I N O U T S 588 CONNECTOR PINOUTS...
Страница 603: ...C O N N E C T O R P I N O U T S 589 CONNECTOR PINOUTS...
Страница 613: ...C O N N E C T O R P I N O U T S 599 CONNECTOR PINOUTS...
Страница 619: ...10 0 SCHEMATIC DIAGRAMS 10 1 AIRBAG SYSTEM S C H E M A T I C D I A G R A M S 605 SCHEMATIC DIAGRAMS...
Страница 620: ...10 2 AUDIO SYSTEM 10 2 1 PREMIUM AUDIO SYSTEM S C H E M A T I C D I A G R A M S 606 SCHEMATIC DIAGRAMS...
Страница 621: ...10 2 2 BASE AUDIO SYSTEM S C H E M A T I C D I A G R A M S 607 SCHEMATIC DIAGRAMS...
Страница 622: ...10 2 3 REMOTE RADIO CONTROLS S C H E M A T I C D I A G R A M S 608 SCHEMATIC DIAGRAMS 10 2 AUDIO SYSTEM Continued...
Страница 623: ...10 3 COMMUNICATION 10 3 1 PCI BUS COMMUNICATION S C H E M A T I C D I A G R A M S 609 SCHEMATIC DIAGRAMS...
Страница 625: ...10 3 4 ECM COMMUNICATION DIESEL S C H E M A T I C D I A G R A M S 611 SCHEMATIC DIAGRAMS...
Страница 626: ...10 4 DOOR AJAR SYSTEM S C H E M A T I C D I A G R A M S 612 SCHEMATIC DIAGRAMS...
Страница 627: ...10 5 ELECTRICALLY HEATED SYSTEMS 10 5 1 HEATED MIRROR SYSTEM S C H E M A T I C D I A G R A M S 613 SCHEMATIC DIAGRAMS...
Страница 629: ...10 6 EXTERIOR LIGHTS S C H E M A T I C D I A G R A M S 615 SCHEMATIC DIAGRAMS...
Страница 630: ...10 7 HEATING A C SYSTEM S C H E M A T I C D I A G R A M S 616 SCHEMATIC DIAGRAMS...
Страница 631: ...10 8 IGNITION POWER ACCESSORY 10 8 1 HORN SYSTEM S C H E M A T I C D I A G R A M S 617 SCHEMATIC DIAGRAMS...
Страница 632: ...10 9 INSTRUMENT CLUSTER S C H E M A T I C D I A G R A M S 618 SCHEMATIC DIAGRAMS...
Страница 633: ...10 10 OVERHEAD CONSOLE S C H E M A T I C D I A G R A M S 619 SCHEMATIC DIAGRAMS...
Страница 634: ...10 11 POWER DOOR LOCKS S C H E M A T I C D I A G R A M S 620 SCHEMATIC DIAGRAMS...
Страница 635: ...10 12 TELECOMMUNICATIONS HANDS FREE SYSTEM S C H E M A T I C D I A G R A M S 621 SCHEMATIC DIAGRAMS...
Страница 636: ...10 13 VEHICLE THEFT SECURITY SYSTEM S C H E M A T I C D I A G R A M S 622 SCHEMATIC DIAGRAMS...
Страница 637: ...10 14 WIPERS S C H E M A T I C D I A G R A M S 623 SCHEMATIC DIAGRAMS...
Страница 638: ...NOTES 624...
Страница 639: ...11 0 CHARTS AND GRAPHS 11 1 DIAGNOSTIC TROUBLE CODE C H A R T S A N D G R A P H S 625 CHARTS AND GRAPHS...
Страница 640: ...NOTES 626...
Страница 642: ...Dealer Technical Operations 800 Chrysler Drive CIMS 486 02 76 Auburn Hills MI 48326 2757...