Jeep Grand Cherokee WK. Manual — part 1412
U0415-IMPLAUSIBLE DATA RECEIVED
FROM ABS . . . . . . . . . . . . . . . . . . . . . . . . . . 634
U0423-IMPLAUSIBLE DATA RECEIVED
FROM CLUSTER/CCN . . . . . . . . . . . . . . . . . 636
U0424-IMPLAUSIBLE DATA RECEIVED
FROM HVAC CONTROL MODULE . . . . . . . . 638
U0431-IMPLAUSIBLE DATA FROM FCM
MESSAGE . . . . . . . . . . . . . . . . . . . . . . . . . . 642
RECEIVED . . . . . . . . . . . . . . . . . . . . . . . . . . 651
U1401-IMPLAUSIBLE ENGINE SPEED
SIGNAL RECEIVED . . . . . . . . . . . . . . . . . . . 653
TEMPERATURE SIGNAL RECEIVED . . . . . . 655
U1404-IMPLAUSIBLE STATIC ENGINE
TORQUE SIGNAL RECEIVED . . . . . . . . . . . 657
U1405-IMPLAUSIBLE MINIMUM ENGINE
TORQUE SIGNAL RECEIVED . . . . . . . . . . . 659
U1406-IMPLAUSIBLE MAXIMUM ENGINE
TORQUE SIGNAL RECEIVED . . . . . . . . . . . 661
U1407-IMPLAUSIBLE ENGINE TORQUE
REQUEST SIGNAL RECEIVED . . . . . . . . . . . 663
U1408-IMPLAUSIBLE BRAKE SIGNAL
RECEIVED . . . . . . . . . . . . . . . . . . . . . . . . . . 665
U1409-IMPLAUSIBLE LEFT FRONT WHEEL
SPEED SIGNAL RECEIVED . . . . . . . . . . . . . 667
WHEEL SPEED SIGNAL RECEIVED . . . . . . 669
U140B-IMPLAUSIBLE LEFT REAR WHEEL
SPEED SIGNAL RECEIVED . . . . . . . . . . . . . 671
U140C-IMPLAUSIBLE RIGHT REAR WHEEL
SPEED SIGNAL RECEIVED . . . . . . . . . . . . . 673
SIGNALS RECEIVED . . . . . . . . . . . . . . . . . . 675
U140F-IMPLAUSIBLE ENGINE VARIANT
DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 677
VARIANT DATA . . . . . . . . . . . . . . . . . . . . . . 679
TEMPERATURE MESSAGE DATA LENGTH
RECEIVED . . . . . . . . . . . . . . . . . . . . . . . . . . 681
U1509-IMPLAUSIBLE ENGINE VARIANT
MESSAGE DATA LENGTH RECEIVED . . . . . 683
MESSAGE DATA LENGTH RECEIVED . . . . . 685
TROUBLESHOOTING PROCEDURE . . . . . . 687
NAG1 TRANSMISSION VERIFICATION TEST
- VER 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 688
AUTOMATIC TRANSMISSION NAG1 - ELECTRICAL DIAGNOSTICS
DIAGNOSIS AND TESTING
21 - 458
AUTOMATIC TRANSMISSION NAG1 - ELECTRICAL DIAGNOSTICS
WK
P0219–ENGINE OVERSPEED
For the Transmission circuit diagram (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - NAG1 - SCHE-
MATICS AND DIAGRAMS)
For a complete wiring diagram Refer to Section 8W
Theory of Operation
The Transmission Control Module (TCM) monitors the engine speed over the CAN bus. If the engine speed is
greater than 4100+ 800 RPM, the TCM assumes that either the information from the Powertrain Control Module
(PCM) is incorrect or that a major mechanical problem exist. Once the DTC is set, the TCM will position the trans-
mission gear into neutral to protect the engine and transmissin from damage. The transmission will remain in neutral
and will not be revaluated by the TCM until the ignition is cycled.
•
When Monitored:
Continuously with the ignition on, engine running, with the transmission in gear with a valid Engine RPM mes-
sage received at least once, and the CAN Bus Circuit and Engine CAN Message Missing are not active.
•
Set Condition:
Engine speed is greater than 4100+ 800 RPM.
Possible Causes
MECHANICAL ENGINE PROBLEM
MECHANICAL TRANSMISSION PROBLEM
POWERTRAIN CONTROL MODULE
TRANSMISSION CONTROL MODULE
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - NAG1 - STANDARD PROCEDURE)
Diagnostic Test
1.
CHECK FOR OTHER TRANSMISSION DTCS
With the scan tool, check for other transmission DTCs.
Are there any gear ratio and/or speed sensor DTCs present in addition to P0219?
Yes
>> Refer to the Symptom Category and perform the appropriate symptom. If speed sensor DTCs are
present, perform their respective test first.
No
>> Go To 2
2.
CHECK IF ENGINE MECHANICAL PROBLEMS ARE PRESENT
Determine if any Engine mechanical problems are present.
Are there any Engine mechanical problems present?
Yes
>> Repair engine as necessary. Refer to 9 - ENGINE-SERVICE INFORMATION for the appropriate repair
procedures.
No
>> Go To 3
WK
AUTOMATIC TRANSMISSION NAG1 - ELECTRICAL DIAGNOSTICS
21 - 459
P0219–ENGINE OVERSPEED (CONTINUED)
3.
CHECK IF TRANSMISSION MECHANICAL PROBLEMS ARE PRESENT
Determine if any Transmission mechanical problems are present.
Turn the ignition off to the lock position.
Remove the Transmission Oil Pan and inspect for debris or a plugged Transmission Oil Filter. Refer to 21 - AUTO-
MATIC TRANSMISSION-AUTOMATIC TRANSMISSION NAG1/SERVICE INFORMATION for the appropriate service
procedures.
Is there any debris, plugged Transmission Oil Filter, or signs of an internal transmission problem?
Yes
>> Repair Transmission as necessary. Refer to 21 - AUTOMATIC TRANSMISSION-AUTOMATIC TRANS-
MISSION-NAG1/SERVICE INFORMATION for the appropriate service procedures.
No
>> Go To 4
4.
TEST DRIVE VEHICLE
NOTE: The Engine and Transmission must not have mechanical problems and be operating normally before
proceeding with this test.
Replace and program the Powertrain Control Module (PCM) per the Service Information. Refer to 8 - ELECTRICAL/
ELECTRONIC CONTROL MODULES/POWERTRAIN CONTROL MODULE for the appropriate service procedures.
Reassemble any previously disconnected connectors and/or components.
With the scan tool, erase Transmission DTCs.
Road test the vehicle.
With the scan tool, read Transmission DTCs.
Did DTC P0219-ENGINE OVERSPEED reset?
Yes
>> 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. Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/TRANSMISSION CONTROL MODULE for the appropriate service procedures.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No
>> Test Complete
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
21 - 460
AUTOMATIC TRANSMISSION NAG1 - ELECTRICAL DIAGNOSTICS
WK
P0562-BATTERY VOLTAGE LOW
WK
AUTOMATIC TRANSMISSION NAG1 - ELECTRICAL DIAGNOSTICS
21 - 461
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст