Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 2014
5.
(T9) OD PRESSURE SWITCH SENSE CIRCUIT OPEN
Turn the ignition off to the lock position.
Disconnect the PCM C4 harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly har-
ness connector.
NOTE: Check connectors - Clean/repair as necessary.
CAUTION: Do not probe the PCM harness connectors. Probing the
PCM harness connectors will damage the PCM terminals resulting
in poor terminal to pin connection. Install Miller Special Tool #8815
to perform diagnosis.
Measure the resistance of the (T9) OD Pressure Switch Sense circuit
from the appropriate terminal of special tool #8815 to the Transmission
Solenoid/Pressure Switch Assembly harness connector.
Is the resistance above 5.0 ohms?
Yes
>> Repair the (T9) OD Pressure Switch Sense 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.
(T9) OD PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND
Turn the ignition off to the lock position.
Disconnect the PCM C4 harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly har-
ness connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the (T9) OD Pressure
Switch Sense circuit.
Is the resistance below 5.0 ohms?
Yes
>> Repair the (T9) OD Pressure Switch Sense 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.
(T9) OD PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
Turn the ignition off to the lock position.
Disconnect the PCM C4 harness connector.
Disconnect the Transmission Solenoid/Pressure Switch Assembly har-
ness 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.
Ignition on, engine not running.
Measure the voltage of the (T9) OD Pressure Switch Sense circuit.
Is the voltage above 0.5 volts?
Yes
>> Repair the (T9) OD Pressure Switch Sense circuit for a
short to voltage.
Perform 42RLE TRANSMISSION VERIFICATION TEST -
VER 1.
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
CONTROL MODULES/POWERTRAIN CONTROL MOD-
ULE - REMOVAL)
Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)
8.
OD PRESSURE SWITCH
View repair.
Repair
Replace the Transmission Solenoid/Pressure Switch Assembly per the Service Information.
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 wires 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.
LX
AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS
21 - 591
P0882-TCM POWER INPUT LOW
For a complete wiring diagram Refer to Section 8W.
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AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS
LX
•
When Monitored:
Continuously
•
Set Condition:
This DTC is set when less than 3 volts are present at the Transmission Control Relay output circuits at the
Powertrain Control Module when the PCM is energizing the relay. Note: Due to the integration of the Power-
train and Transmission Control Modules, the transmission part of the PCM has its own specific power and
ground circuits.
Possible Causes
(Internal) FUSED B+ CIRCUIT OPEN
(T16) TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT OPEN
(T15) TRANSMISSION CONTROL RELAY CONTROL CIRCUIT OPEN
(Z901) TRANSMISSION CONTROL RELAY GROUND CIRCUIT OPEN
(T15) TRANSMISSION CONTROL RELAY CONTROL CIRCUIT SHORT TO GROUND
(T16) TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT SHORT TO GROUND
TRANSMISSION CONTROL RELAY
TRANSMISSION SOLENOID/PRESSURE SWITCH ASSEMBLY
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 transmission control relay is used to supply power to the solenoid pack when the transmission is in normal
operating mode. When the relay is off, no power is supplied to the solenoid pack and the transmission is in Limp-in
mode. The relay output is fed back to the PCM. It is referred to as the Trans Relay Output circuit or switched
battery. After a controller reset (ignition key turned to the run position or after cranking engine), the controller ener-
gizes the relay. Prior to this, the PCM verifies that the contacts are open by checking for no voltage at the trans-
mission control relay outputs (switched battery) terminals. After the relay is energized, the PCM monitors the
terminals to verify that the voltage is greater than 3 volts. The MIL illuminates and the transmission will be placed
in Limp-in.
Diagnostic Test
1.
CHECK TO SEE IF DTC P0882 IS CURRENT
With the scan tool, Check the STARTS SINCE SET counter for P0882.
NOTE: This counter only applies to the last DTC set.
Is the STARTS SINCE SET counter equal to 0?
Yes
>> Go To 2
No
>> Go To 11
LX
AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS
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