Chrysler 300/300 Touring/300C, Dodge Magnum. Manual - part 331
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When Monitored:
With the ignition on.
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Set Condition:
The FCM detects a short in either CAN C Bus circuit.
Possible Causes
(D65) CAN C BUS (+) CIRCUIT SHORTED TO GROUND
(D64) CAN C BUS (-) CIRCUIT SHORTED TO GROUND
(D65) CAN C BUS (+) CIRCUIT SHORTED TO VOLTAGE
(D64) CAN C BUS (-) CIRCUIT SHORTED TO VOLTAGE
(D65) CAN C BUS (+) CIRCUIT SHORTED TO (D64) CAN C BUS (-) CIRCUIT
ANTILOCK BRAKE MODULE
POWERTRAIN CONTROL MODULE
SHIFTER LEVER ASSEMBLY (NAG1 ONLY)
ELECTRONIC SHIFT MODULE (COLUMN NAG1)
TRANSMISSION CONTROL MODULE (NAG1 ONLY)
ENGINE CONTROL MODULE (DIESEL)
STEERING CONTROL MODULE
FRONT CONTROL MODULE
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase FCM DTC’s.
Cycle the ignition from on to off 3 times.
Turn the ignition on.
With the scan tool, read active FCM DTC’s.
Does the scan tool display U0001–CAN C BUS as active?
Yes
>> Go To 2
No
>> The conditions that caused this code to set are not present at this time. Using the wiring diagram/sche-
matic as a guide, inspect the wiring and connectors.
2.
ANTILOCK BRAKE MODULE — INTERNAL SHORT
Turn the ignition off.
Disconnect the Antilock Brake Module harness connector.
Turn the ignition on.
With the scan tool, record and erase FCM DTC’s.
Cycle the ignition from on to off 3 times.
Turn the ignition on.
With the scan tool, read active FCM DTC’s.
Does the scan tool display U0001–CAN C BUS as active?
Yes
>> Go To 3
No
>> Inspect the wiring and connectors for damage or shorted circuits. If ok, replace the Antilock Brake Mod-
ule in accordance with the service information.
Perform ABS VERIFICATION TEST — VER 1.
8E - 14
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
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