Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 1982
AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL
DIAGNOSTICS
TABLE OF CONTENTS
page
page
AUTOMATIC TRANSMISSION 42RLE -
ELECTRICAL DIAGNOSTICS
DIAGNOSIS AND TESTING
ACTIVATED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470
P0562-BATTERY VOLTAGE LOW . . . . . . . . . . . . 472
P0602-CONTROL MODULE PROGRAMMING
ERROR/NOT PROGRAMMED . . . . . . . . . . . . . . 477
PROCESSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480
P0706-TRANSMISSION RANGE SENSOR
RATIONALITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . 481
P0711-TRANSMISSION TEMPERATURE
SENSOR PERFORMANCE. . . . . . . . . . . . . . . . . 492
P0712-TRANSMISSION TEMPERATURE
SENSOR LOW. . . . . . . . . . . . . . . . . . . . . . . . . . . . 495
P0713-TRANSMISSION TEMPERATURE
SENSOR HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . 499
P0714-TRANSMISSION TEMPERATURE
SENSOR INTERMITTENT . . . . . . . . . . . . . . . . . 504
RATIONALITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . 553
P0845-2/4 HYDRAULIC PRESSURE TEST . . . 558
P0846-2/4 PRESSURE SWITCH
RATIONALITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . 564
RATIONALITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . 587
DETERIORATED. . . . . . . . . . . . . . . . . . . . . . . . . . 607
P0932-LINE PRESSURE SENSOR CIRCUIT . . 608
P0934-LINE PRESSURE SENSOR CIRCUIT
LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 611
P0935-LINE PRESSURE SENSOR CIRCUIT
HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 616
P0944-LOSS OF HYDRAULIC PUMP PRIME . 621
P0992-2/4/OD HYDRAULIC PRESSURE
TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 623
P1684-BATTERY WAS DISCONNECTED . . . . . 624
P1713-RESTRICTED MANUAL VALVE IN T2
RANGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 626
P1745-TRANSMISSION LINE PRESSURE
TOO HIGH FOR TOO LONG . . . . . . . . . . . . . . . 627
LATCHED IN TCC POSITION . . . . . . . . . . . . . . 628
LATCHED IN LR POSITION . . . . . . . . . . . . . . . . 633
ECM/PCM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 645
U0121 LOST COMMUNICATION WITH ABS . . 647
U0141 LOST COMMUNICATION WITH FCM . . 649
TROUBLESHOOTING PROCEDURE. . . . . . . . 651
42RLE TRANSMISSION VERIFICATION
TEST - VER 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 652
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AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS
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AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS
DIAGNOSIS AND TESTING
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P0122-TPS/APP CIRCUIT LOW
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Continuously with the ignition on and engine running.
•
Set Condition:
This DTC will set if the monitored TPS voltage drops below .078 volts for the period of 0.48 seconds.
Possible Causes
RELATED TPS ENGINE DTCS PRESENT
POWERTRAIN CONTROL MODULE
Always perform the 42RLE Pre-Diagnostic Troubleshooting Procedure before proceeding. (Refer to 21 -
TRANSMISSION/TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)
Theory of Operation
The powertrain controller receives the throttle position signal from the Throttle Position Sensor (TPS) / Accelerator
Pedal Position (APP). The controller provides the TPS/APP with a 5 volt pull up and a sensor ground. The signal is
checked for being out of range as well as for intermittent operation (excessive signal changes). The engine con-
troller transmits the throttle value onto the Bus. Most engine controllers will calculate the throttle value if the throttle
signal is lost. If an error is detected by the transmission controller and the throttle value is available on the Bus, the
Bus value will be used, normal operation will continue, and a TPS/APP code will be set. If an error is detected and
the throttle value is not available on the Bus, normal operation will be discontinued, a TPS/APP DTC will be set, and
the MIL will be turned on after 5 minutes of calculated operation.
Diagnostic Test
1.
DETERMINING IF RELATED ENGINE TPS DTCS ARE PRESENT
With the scan tool, check Engine DTCs, including pending DTCs and one trip failures.
Are there any Engine TPS/APP DTCs present?
Yes
>> Refer to the Driveability category and perform the appropriate diagnostic procedure.
Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)
No
>> Go To 2
2.
CHECK TO SEE IF DTC IS CURRENT
With the scan tool, record the DTC EVENT DATA to help identify the conditions in which the DTC was set.
With the scan tool, erase Transmission DTCs.
NOTE: To erase DTC EVENT DATA information, a BATTERY DISCONNECT must be performed. Performing a
BATTERY DISCONNECT will reset all learned Transmission values to controller defaults which may lead to
erratic shift schedules.
Drive the vehicle and try to duplicate the conditions in which the DTC was reported by the DTC EVENT DATA.
With the scan tool, read Transmission DTCs.
Does this DTC reset?
Yes
>> Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion,
damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems
are found, replace the PCM per the Service Information. With the scan tool PERFORM QUICK LEARN,
then program Pinion Factor in the Front Control Module. (Refer to 8 - ELECTRICAL/ELECTRONIC
CONTROL MODULES/POWERTRAIN CONTROL MODULE - REMOVAL)
Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)
No
>> Go To 3
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AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS
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3.
INTERMITTENT 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.
Pay particular attention to the TPS/APP signal and sensor ground 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 42RLE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)
No
>> Test Complete.
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