Dodge Ram. Manual — part 76
TEST
ACTION
APPLICABILITY
6
Turn the ignition off.
Disconnect the negative battery cable.
Using a ohmmeter, connect one end to the PCI Bus circuit at the DLC, and the other
end to ground.
While monitoring the ohmmeter, disconnect each module the vehicle is equipped with
one at a time.
NOTE: Total bus resistance to ground thru all of the modules is typically
between 350 to 1000 ohms. The more modules on the bus, the lower the total
bus resistance will be.
Is the resistance below 150.0 ohms with all the modules disconnected?
All
Yes
→ Repair the PCI Bus circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the module that when disconnected the short to ground
was eliminated.
Perform BODY VERIFICATION TEST - VER 1.
301
COMMUNICATION
*PCI BUS COMMUNICATION FAILURE —
Continued
Symptom:
BUS MESSAGES MISSING
POSSIBLE CAUSES
NO RESPONSE - PCI BUS - PCM
NO REPONSE - PCI BUS - MIC
CMTC
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, select SYSTEM MONITORS, then J1850 Module Scan..
Does the DRBIII
t display PCM Active on the Bus?
All
Yes
→ Go To 2
No
→ Refer to COMMUNICATION category for the related symptom.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition on.
With the DRBIII
t, select Electro/Mechanical Instrument Cluster.
Is there a response from the Instrument Cluster?
All
Yes
→ Replace and configure the CMTC in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Refer to COMMUNICATION category for the related symptom.
Perform BODY VERIFICATION TEST - VER 1.
302
COMPASS/MINI-TRIP COMPUTER
Symptom:
CMTC INTERNAL FAILURE
POSSIBLE CAUSES
COMPASS/MINI-TRIP COMPUTER
TEST
ACTION
APPLICABILITY
1
Perform the CMTC Self Test.
Turn the ignition off.
Press and hold the C/T button and the RESET button.
Turn the ignition on.
NOTE: The CMTC Self Test can also be performed using the DRBIII
t.
Turn the ignition on.
With the DRBIII
t, select body, CMTC, System Test, then Self Test.
Observe the DRBIII
t or the CMTC display following the Self Test.
NOTE: The CMTC Self Test can also be performed using the DRBIII
t.
Perform the CMTC Self Test.
When the trouble code CMTC INTERNAL FAILURE is displayed, View repair.
All
Repair
Replace and program the CMTC in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
303
COMPASS/MINI-TRIP COMPUTER
Symptom:
DEMAGNETIZE COMPASS AS PER SERVICE MANUAL
POSSIBLE CAUSES
DEMAGNETIZE COMPASS
TEST
ACTION
APPLICABILITY
1
NOTE: A blank compass display indicates that vehicle demagnetizing is
required.
NOTE: After demagnetizing, the vehicle will enter Auto Fast-Cal when the
ignition is turned on.
NOTE: Ensure that the correct compass variance is stored in the compass
memory. See
(Setting Compass Variance( in the Service Information.
Refer to the Service Information for the Demagnetizing Procedure.
View repair for Verification Test.
All
Repair
When the Demagnetizing Procedure is complete perform the
Verification Test.
Perform BODY VERIFICATION TEST - VER 1.
304
COMPASS/MINI-TRIP COMPUTER
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст