Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 1994
5.
(T13) SENSOR GROUND CIRCUIT OPEN
Turn the ignition off to the lock position.
Disconnect the PCM C4 harness connector.
Disconnect the Input Speed Sensor harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance of the (T13) Sensor Ground circuit from the
from the appropriate terminal of special tool #8815 to the Input Speed
Sensor harness connector.
Is the resistance above 5.0 ohms?
Yes
>> Repair the (T13) Sensor Ground circuit for an open.
Perform 42RLE TRANSMISSION VERIFICATION TEST -
VER 1. (Refer to 21 - TRANSMISSION/TRANSAXLE/AU-
TOMATIC - 42RLE - STANDARD PROCEDURE)
No
>> Go To 6
6.
(T52) INPUT SPEED SENSOR SIGNAL CIRCUIT SHORT TO GROUND
Turn the ignition off to the lock position.
Disconnect the PCM C4 harness connector.
Disconnect the Input Speed Sensor harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the (T52) Input Speed
Sensor Signal circuit.
Is the resistance Below 5.0 ohms?
Yes
>> Repair the (T52) Input Speed Sensor Signal circuit for a
short to ground.
Perform 42RLE TRANSMISSION VERIFICATION TEST -
VER 1. (Refer to 21 - TRANSMISSION/TRANSAXLE/AU-
TOMATIC - 42RLE - STANDARD PROCEDURE)
No
>> Go To 7
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AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS
LX
7.
(T52) INPUT SPEED SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE
Turn the ignition off to the lock position.
Disconnect the PCM C4 harness connector.
Disconnect the Output Speed Sensor harness connector.
Remove the Transmission Control Relay.
NOTE: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the (Internal) Fused B+ circuit and
(T16) Transmission Control Relay Output circuit in the Transmission
Control Relay connector.
Ignition on, engine not running.
Measure the voltage of the (T52) Input Speed Sensor Signal circuit.
Is the voltage above 0.5 volt?
Yes
>> Repair the (T52) Input Speed Sensor Signal circuit for a
short to voltage.
Perform 42RLE TRANSMISSION VERIFICATION TEST -
VER 1. (Refer to 21 - TRANSMISSION/TRANSAXLE/AU-
TOMATIC - 42RLE - STANDARD PROCEDURE)
No
>> Go To 8
8.
(T13) SENSOR GROUND CIRCUIT SHORT TO VOLTAGE
Turn the ignition off to the lock position.
Disconnect the PCM C4 harness connector.
Remove the Transmission Control Relay.
NOTE: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the (Internal) Fused B+ and (T16)
Transmission Control Relay Output circuits in the Transmission Control
Relay connector.
Ignition on, engine not running.
Measure the voltage of the (T13) Sensor Ground circuit.
Is the voltage above 0.5 volts?
Yes
>> Repair the (T13) Sensor Ground circuit for a short to volt-
age.
Perform 42RLE TRANSMISSION VERIFICATION TEST -
VER 1. (Refer to 21 - TRANSMISSION/TRANSAXLE/AU-
TOMATIC - 42RLE - STANDARD PROCEDURE)
No
>> 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
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AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS
21 - 511
CONTROL MODULES/POWERTRAIN CONTROL MOD-
ULE - REMOVAL)
Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)
9.
INTERMITTENT WIRING AND CONNECTORS
The conditions necessary to set the DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
Wiggle the wiring and connectors while checking for shorted and open circuits.
With the scan tool , check the EATX 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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AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS
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P0720-OUTPUT SPEED SENSOR CIRCUIT
For a complete wiring diagram Refer to Section 8W.
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AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS
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