Jeep Liberty KJ. Manual — part 1472
5.
(D65) CAN C BUS (+) CIRCUIT OPEN
Turn the ignition off.
Disconnect the scan tool from the DLC.
Measure the resistance of the (D65) CAN C Bus (+) circuit between the
DLC connector and the appropriate terminal of the special tool #8815.
Is the resistance below 5.0 ohms?
Yes
>> Go To 6
No
>> Repair the (D65) CAN C Bus (+) circuit for an open.
Perform (NGC) POWERTRAIN VERIFICATION TEST VER -
5.
6.
(D64) CAN C BUS (-) CIRCUIT OPEN
Measure the resistance of the (D64) CAN C Bus (-) circuit between the
DLC connector and the appropriate terminal of the special tool #8815.
Is the resistance below 5.0 ohms?
Yes
>> Replace and program the Powertrain Control Module in
accordance with the service information.
Perform (NGC) POWERTRAIN VERIFICATION TEST VER -
5.
No
>> Repair the (D64) CAN C Bus (-) circuit for an open.
Perform (NGC) POWERTRAIN VERIFICATION TEST VER -
5.
8E - 100
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTIC
KJ
*NO RESPONSE FROM RADIO
For a complete wiring diagram Refer to Section 8W.
KJ
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTIC
8E - 101
Possible Causes
(Z514) GROUND CIRCUIT OPEN
(A908) FUSED B(+) CIRCUIT OPEN
(F982) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
(D25) PCI BUS CIRCUIT OPEN
RADIO
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.
With the scan tool, select ECU view.
NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active
on the Bus network. A green check indicates that the module is active on the Bus network.
Does the scan tool display a red X next to the module?
Yes
>> Go To 2
No
>> The no response condition is not present at this time. Using the wiring diagram/schematic as a guide,
inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness con-
nectors for broken, bent, pushed out, and corroded terminals.
2.
(Z514) GROUND CIRCUIT OPEN
Turn the ignition off.
Disconnect the Radio C1 harness connector.
Using a 12-volt test light connected to 12-volts, probe each (Z514)
ground circuit.
Does the test light illuminate brightly for each circuit?
Yes
>> Go To 3
No
>> Repair the (Z514) Ground circuit for an open.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL MODULES
-
STANDARD PROCEDURE).
8E - 102
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTIC
KJ
3.
(A908) FUSED B(+) CIRCUIT OPEN
Using a 12-volt test light connected to ground, probe each (A908)
Fused B(+) circuit.
Does the test light illuminate brightly for each circuit?
Yes
>> Go To 4
No
>> Repair the (A908) Fused B(+) circuit for an open.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL MODULES
-
STANDARD PROCEDURE).
4.
(F982) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the (F982) Fused
Ignition Switch Output circuit.
Does the test light illuminate brightly?
Yes
>> Go To 5
No
>> Repair the (F982) Fused Ignition Switch Output circuit for
an open.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL MODULES
-
STANDARD PROCEDURE).
KJ
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTIC
8E - 103
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст