
Symptom:
U0168-NO SKIM BUS MESSAGES
When Monitored and Set Condition:
U0168-NO SKIM BUS MESSAGES
When Monitored:
Ignition on or Engine Running.
Set Condition:
No BUS messages are received from the SKIM for 20 seconds.
POSSIBLE CAUSES
INTERMITTENT CONDITION
PCI BUS CIRCUIT OPEN FROM PCM TO SKIM
LOSS OF SKIM COMMUNICATION
SKIM/PCM
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t
, read the DTCs and record the related Freeze Frame data.
Is the Good Trip Counter displayed and equal to zero?
All
Yes
→
No
→
2
Turn the ignition on.
With the DRB III, attempt to communicate with the SKIM.
NOTE: This test will indicate if the Bus is operational from the DLC to the
SKIM.
Was the DRB III able to communicate with the SKIM?
All
Yes
→
No
→
Refer to symptom BUS +/- SIGNAL OPEN FROM SKIM in the
COMMUNICATION category.
Perform SKREEM VERIFICATION TEST - VER 1A.
3
Turn the ignition off.
Disconnect the PCM harness connectors.
Disconnect the SKIM harness connector.
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.
Measure the resistance of the PCI Bus circuit from the SKIM harness connector to
the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
All
Yes
→
No
→
Repair the PCI Bus circuit between the PCM and the SKIM for an
open.
Perform SKREEM VERIFICATION TEST - VER 1A.
292
DRIVEABILITY - NGC
Содержание Pacifica CS 2004
Страница 14: ...FIGURE 2 8 GENERAL INFORMATION ...
Страница 22: ...NOTES 16 ...
Страница 23: ...7 0 DIAGNOSTIC INFORMATION AND PROCEDURES 17 ...
Страница 340: ...TYPICAL VIEW C O M P O N E N T L O C A T I O N S 334 COMPONENT LOCATIONS 8 2 CONTROL AND SOLENOIDS Continued ...
Страница 341: ...8 3 SENSOR C O M P O N E N T L O C A T I O N S 335 COMPONENT LOCATIONS ...
Страница 342: ...8 4 FUEL SYSTEM AND EVAP SYSTEM 8 5 SWITCHES C O M P O N E N T L O C A T I O N S 336 COMPONENT LOCATIONS ...
Страница 350: ...C O N N E C T O R P I N O U T S 344 CONNECTOR PINOUTS ...
Страница 364: ...NOTES 358 ...
Страница 365: ...10 0 SCHEMATIC DIAGRAMS 10 1 2004 CS 3 5L S C H E M A T I C D I A G R A M S 359 SCHEMATIC DIAGRAMS ...
Страница 366: ...10 2 2004 CS 3 5L S C H E M A T I C D I A G R A M S 360 SCHEMATIC DIAGRAMS ...
Страница 367: ...10 3 2004 CS 3 5L S C H E M A T I C D I A G R A M S 361 SCHEMATIC DIAGRAMS ...
Страница 368: ...NOTES 362 ...
Страница 369: ...11 0 CHARTS AND GRAPHS C H A R T S A N D G R A P H S 363 CHARTS AND GRAPHS ...
Страница 370: ...C H A R T S A N D G R A P H S 364 CHARTS AND GRAPHS ...