Jeep Grand Cherokee WK. Manual — part 318
U0196-LOST COMMUNICATION WITH VEHICLE ENTERTAINMENT CONTROL MODULE (CONTINUED)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
•
With the ignition on
•
Battery voltage between 10 and 16 volts
•
IOD fuse installed
•
FCM is configured correctly
•
Set Condition:
Bus messages not received from the vehicle entertainment system (DVD player) for approximately 2 to 5 sec-
onds.
Possible Causes
CAN B BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
FCM NOT CONFIGURED CORRECTLY
MONITOR/DVD MEDIA SYSTEM (DVD PLAYER)
MONITOR/DVD MEDIA SYSTEM (DVD PLAYER) POWER AND GROUND
MODULE THAT SET THIS DTC
Diagnostic Test
1.
VERIFY DTC IS ACTIVE
NOTE: Ensure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding.
With the scan tool, read active DTCs.
Is this DTC active?
Yes
>> Go To 2
No
>> Refer to the Stored Lost Communication test procedure. Refer to the table of contents in this section.
2.
CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS
With the scan tool, read active DTCs from all modules.
NOTE: Check for FCM configuration, CAN B or C hardware electrical, VIN Missing/Mismatch, battery or igni-
tion related DTCs.
Does the scan tool display any active DTCs to the conditions listed above?
Yes
>> Diagnose and repair the DTC. Refer to the Table of Contents for a complete list of the symptoms.
No
>> Go To 3
3.
VERIFY THAT THE VES IS ACTIVE ON THE BUS
Turn the ignition on.
With the scan tool, select Network Diagnostics.
Verify that the VES is active on the bus.
Is the VES active on the bus?
Yes
>> Go To 4
No
>> Refer to the No Response test procedure. Refer to the table of contents in this section.
8E - 118
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
WK
U0196-LOST COMMUNICATION WITH VEHICLE ENTERTAINMENT CONTROL MODULE (CONTINUED)
4.
CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCS
With the scan tool, select Network Diagnostics.
Is there more than one module with active DTCs “Logged Against” the VES?
Yes
>> Replace/update the Monitor/DVD Media System (DVD Player) in accordance with the service informa-
tion.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).
No
>> Replace/update the module that set this DTC in accordance with the service information.
Perform the appropriate VERIFICATION TEST.
WK
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 119
U0197-LOST COMMUNICATION WITH HANDS FREE PHONE MODULE
8E - 120
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
WK
U0197-LOST COMMUNICATION WITH HANDS FREE PHONE MODULE (CONTINUED)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
•
With the ignition on
•
Battery voltage between 10 and 16 volts
•
IOD fuse installed
•
FCM is configured correctly
•
Set Condition:
Bus messages not received from the HFM for approximately 2 to 5 seconds.
Possible Causes
CAN B BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
FCM NOT CONFIGURED CORRECTLY
HANDS FREE MODULE POWER AND GROUND
HANDS FREE MODULE
MODULE THAT SET THIS DTC
Diagnostic Test
1.
VERIFY DTC IS ACTIVE
NOTE: Ensure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding.
With the scan tool, read active DTCs.
Is this DTC active?
Yes
>> Go To 2
No
>> Refer to the Stored Lost Communication test procedure. Refer to the table of contents in this section.
2.
CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS
With the scan tool, read active DTCs from all modules.
NOTE: Check for FCM configuration, CAN B or C hardware electrical, VIN Missing/Mismatch, battery or igni-
tion related DTCs.
Does the scan tool display any active DTCs to the conditions listed above?
Yes
>> Diagnose and repair the DTC. Refer to the Index for a complete list of the symptoms.
No
>> Go To 3
3.
VERIFY THAT THE HFM IS ACTIVE ON THE BUS
Turn the ignition on.
With the scan tool, select Network Diagnostics.
Verify that the HFM is active on the bus.
Is the HFM active on the bus?
Yes
>> Go To 4
No
>> Refer to the No Response test procedure. Refer to the table of contents in this section.
WK
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 121
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