Dodge Durango (HB). Manual — part 198
U0001-CAN C BUS CIRCUIT
HB
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 13
U0001-CAN C BUS CIRCUIT (CONTINUED)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
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
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 CIRCUIT 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 CIRCUIT 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
HB
U0001-CAN C BUS CIRCUIT (CONTINUED)
3.
POWERTRAIN CONTROL MODULE — INTERNAL SHORT
Turn the ignition off.
Disconnect the Powertrain Control Module C1 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 CIRCUIT as active?
Yes
>> Go To 4
No
>> Inspect the wiring and connectors for damage or shorted circuits. If ok, replace and program the Pow-
ertrain Control Module in accordance with the service information.
Perform (NGC) POWERTRAIN VERIFICATION TEST VER - 5.
4.
(D65) CAN C BUS (+) CIRCUIT SHORTED TO VOLTAGE
Turn the ignition off.
Disconnect the Front Control Module C1 harness connector.
Turn the ignition on.
Measure the voltage between the (D65) CAN C Bus (+) circuit and
ground.
Is there any voltage present?
Yes
>> Repair the (D65) CAN C Bus (+) circuit for a short to volt-
age.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 5
5.
(D64) CAN C BUS (-) CIRCUIT SHORTED TO VOLTAGE
Measure the voltage between the (D64) CAN C Bus (-) circuit and
ground.
Is there any voltage present?
Yes
>> Repair the (D64) CAN C Bus (-) circuit for a short to volt-
age.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 6
HB
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 15
U0001-CAN C BUS CIRCUIT (CONTINUED)
6.
(D65) CAN C BUS (+) CIRCUIT SHORTED TO GROUND
Turn the ignition off.
Measure the resistance between ground and the (D65) CAN C Bus (+)
circuit.
Is any resistance present?
Yes
>> Repair the (D65) CAN C Bus (+) circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 7
7.
(D64) CAN C BUS (-) CIRCUIT SHORTED TO GROUND
Measure the resistance between ground and the (D64) CAN C Bus (-)
circuit.
Is any resistance present?
Yes
>> Repair the (D64) CAN C Bus (-) circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Go To 8
8.
(D65) CAN C BUS (+) CIRCUIT SHORTED TO (D64) CAN C BUS (-) CIRCUIT
Measure the resistance between the (D65) CAN C Bus (+) circuit and
the (D64) CAN C Bus (-) circuit.
Is any resistance present?
Yes
>> Repair the (D65) CAN C Bus (+) circuit for a short to the
(D64) CAN C Bus (-) circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Inspect the wiring and connectors for damage or shorted
circuits. If ok, replace and program the Front Control Mod-
ule in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1.
8E - 16
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
HB
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст