Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 361
•
When Monitored:
When the scan tool queries the FCM.
•
Set Condition:
The scan tool has detected a shorted low condition on the (D71) CAN C Diagnostic (-) circuit.
Possible Causes
(D71) CAN C DIAGNOSTIC (-) CIRCUIT SHORTED TO GROUND
FRONT CONTROL MODULE
Diagnostic Test
1.
CHECK THE STATUS OF THE ERROR MESSAGE
NOTE: Ensure the vehicle being tested is a CAN BUS VEHICLE. If not, false error messages may be dis-
played.
NOTE: Ensure the scan tool is updated to the latest software.
With the scan tool, record the error message.
Disconnect the scan tool from the DLC.
Cycle the ignition from on to off 3 times.
Turn the ignition on.
Does the scan tool display this same error message?
Yes
>> Go To 2
No
>> The conditions that caused this error message to set are not present at this time. Using the wiring dia-
gram/schematic as a guide, inspect the wiring and connectors.
2.
(D71) CAN C DIAGNOSTIC (-) CIRCUIT SHORTED TO GROUND
Turn the ignition off.
Disconnect the Front Control Module C1 harness connector.
Disconnect the scan tool from the DLC.
Measure the resistance between ground and the (D71) CAN C Diag-
nostic (-) circuit.
Is the resistance below 100.0 ohms?
Yes
>> Repair the (D71) CAN C Diagnostic (-) circuit for a short to
ground.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
No
>> Inspect the wiring and connectors for damage or shorted
circuits. If ok, replace the Front Control Module in accor-
dance with the service information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
8E - 134
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
LX
*CAN C DIAGNOSTIC (+) SHORTED TO CAN C DIAGNOSTIC (-)
For a complete wiring diagram Refer to Section 8W.
LX
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 135
•
When Monitored:
When the scan tool queries the FCM.
•
Set Condition:
The scan tool has detected a shorted together condition on the CAN C Diagnostic circuits.
Possible Causes
(D72) CAN C DIAGNOSTIC (+) CIRCUIT SHORTED TO (D71) CAN C DIAGNOSTIC (-) CIRCUIT
FRONT CONTROL MODULE
Diagnostic Test
1.
CHECK THE STATUS OF THE ERROR MESSAGE
NOTE: Ensure the vehicle being tested is a CAN BUS VEHICLE. If not, false error messages may be dis-
played.
NOTE: Ensure the scan tool is updated to the latest software.
With the scan tool, record the error message.
Disconnect the scan tool from the DLC.
Cycle the ignition from on to off 3 times.
Turn the ignition on.
Does the scan tool display this same error message?
Yes
>> Go To 2
No
>> The conditions that caused this error message to set are not present at this time. Using the wiring dia-
gram/schematic as a guide, inspect the wiring and connectors.
2.
(D72) CAN C DIAGNOSTIC (+) CIRCUIT SHORTED TO (D71) CAN C DIAGNOSTIC (-) CIRCUIT
Turn the ignition off.
Disconnect the Front Control Module C1 harness connector.
Disconnect the scan tool from the DLC.
Measure the resistance between the (D72) CAN C Diagnostic (+) circuit
and the (D71) CAN C Diagnostic (-) circuit.
Is the resistance below 100.0 ohms?
Yes
>> Repair the (D72) CAN C Diagnostic (+) circuit for a short to
the (D71) CAN C Diagnostic (-) circuit.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
No
>> Inspect the wiring and connectors for damage or shorted
circuits. If ok, replace the Front Control Module in accor-
dance with the service information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
8E - 136
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
LX
*CAN C DIAGNOSTIC (-) CIRCUIT OPEN
For a complete wiring diagram Refer to Section 8W.
LX
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 137
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст