Jeep Liberty KJ. Manual — part 1161
13.
CHECK THE (T29) UD PRESSURE SWITCH SENSE CIRCUIT FOR A SHORT TO ANOTHER CIRCUIT
Disconnect the TCM harness connector.
NOTE: Make sure the Transmission Solenoid/TRS Assembly har-
ness connector is disconnected.
Measure the resistance between the (T29) UD Pressure Switch Sense
circuit and all other circuits in the Transmission Solenoid/TRS Assembly
harness connector.
Is the resistance below 5.0 ohms between the (T29) UD Pres-
sure Switch Sense circuit and any other circuit(s) in the Trans-
mission Solenoid/TRS Assembly harness connector?
Yes
>> Repair the (T29) UD Pressure Switch Sense circuit for a
short to another circuit(s).
Perform 45RFE/545RFE TRANSMISSION VERIFICATION
TEST - VER 1. (Refer to 21 - TRANSMISSION/TRANS-
AXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PRO-
CEDURE)
No
>> Using the schematics as a guide, check the Transmission
Control Module (TCM) terminals for corrosion, damage, or
terminal push out. Pay particular attention to all power and
ground circuits. If no problems are found, replace the TCM
per the Service Information. With the scan tool, perform
QUICK LEARN.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
14.
WIGGLE TEST USING THE TRANSMISSION SIMULATOR
Perform the steps in the previous test while wiggling the wiring harness and connectors pertaining to the UD Pres-
sure Switch.
Did the state of the UD Pressure Switch change while pressing the Pressure Switch Test button?
Yes
>> Repair the wiring harness and/or connectors as necessary.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
No
>> Go To 15
21 - 588
AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS - (DIESEL)
KJ
15.
CHECK THE TRANSMISSION SOLENOID/TRS ASSEMBLY
Disconnect the Transmission Simulator and reconnect the Transmission
Solenoid/TRS Assembly harness connector.
Disconnect the TCM harness connector.
Measure the resistance between ground and the (T29) UD Pressure
Switch Sense circuit in the TCM harness connector.
Is the resistance below 5.0 ohms?
Yes
>> Replace the Transmission Solenoid/TRS Assembly per the
Service Information.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION
TEST - VER 1. (Refer to 21 - TRANSMISSION/TRANS-
AXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PRO-
CEDURE)
No
>> Go To 16
16.
CHECK IF THE DTC RESETS
Reconnect all previously disconnected connectors.
With the scan tool, erase all transmission DTCs.
Test drive the vehicle. Using the DTC EVENT DATA recorded earlier, try to duplicate the conditions in which the
DTC originally set.
Does the DTC P0876 reset?
Yes
>> Go To 17
No
>> Go To 18
17.
CHECK FOR A CUT NO. 2 CHECK BALL
Remove the Valve Body per the Service Information.
Check the No. 2 check ball for cuts or damage.
Is the No. 2 check ball cut or damaged?
Yes
>> Replace the No. 2 check ball. Check for excessive clutch debris in the oil pan. If excessive debris is
present, check the UD Clutch and repair as necessary.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
No
>> Replace the Transmission Solenoid/TRS Assembly per the Service Information. Check for excessive
clutch debris in the oil pan. If excessive debris is present, check the UD Clutch and repair as necessary.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
KJ
AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS - (DIESEL)
21 - 589
18.
CHECK WIRING AND CONNECTORS
The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
Wiggle the wires while checking for shorted and open circuits.
With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set.
Were there any problems found?
Yes
>> Repair as necessary.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
No
>> Test Complete.
21 - 590
AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS - (DIESEL)
KJ
P0882-TCM POWER INPUT LOW
For a complete wiring diagram Refer to Section 8W
KJ
AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS - (DIESEL)
21 - 591
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст