Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 2022

2.

INTERMITTENT OPERATION

The conditions necessary to set this DTC are not present at this time.

Test drive the vehicle. Allow the Transmission to shift through all gears and ranges.

Was a delayed engagement and/or a no drive condition present during the test drive?

Yes

>> Go To 4

No

>> Go To 3

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 wiring while checking for shorted and open circuits.

With the scan tool, check the EATX 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.

4.

SHIFT LEVER POSITION TEST

With the scan tool, perform a Shift Lever Position test. Follow the instructions on the screen.

Did the Shift Lever Position Test pass?

Yes

>> Go To 5

No

>> Perform the diagnostic procedure for P0706–CHECK SHIFTER SIGNAL.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)

5.

CHECK FOR PLUGGED TRANSMISSION FILTER

Remove the Transmission Pan and inspect the Transmission Fluid and Transmission Filter per the Service Informa-
tion.

Does the Transmission Oil Pan contain excessive debris and/or is the Oil Filter plugged?

Yes

>> Repair the cause of the plugged Transmission Filter. Refer to the Service Information for the proper

repair procedure.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)

No

>> Go To 6

6.

TRANSMISSION OIL PUMP

View repair.

Repair

Replace the Transmission Oil Pump per the Service Information.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)

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AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS

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P0992-2/4/OD HYDRAULIC PRESSURE TEST

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
In any forward gear with engine speed above 1000 RPM, shortly after a shift and every minute thereafter.

•

Set Condition:
After a shift into a forward gear, with engine speed greater than 1000 RPM, the PCM momentarily turns on
element pressure to the clutch circuits that do not have pressure to identify that the correct pressure switch
closes. If the pressure switch does not close 2 times the DTC sets.

Possible Causes

CONDITION P0992 PRESENT

Always perform the 42RLE Pre-Diagnostic Troubleshooting Procedure before proceeding. (Refer to 21 -
TRANSMISSION/TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)

Theory of Operation

Pressure switches are normally off or open (no pressure applied) and read high (+12 volts). When an element is
applied, the corresponding pressure switch closes to ground (0 volts) or turns on. The controller tests the OD and
2/4 pressure switches when they are off (when the corresponding friction element is not applied) by briefly applying
the OD and 2/4 elements which will cause the corresponding pressure switch to close. The test verifies that the
switches are operational and that the switch will close when the corresponding element is applied. If a switch fails
to respond, it is re-tested. The MIL illuminates and the transmission system defaults to Limp-in mode.

1.

CHECK TO SEE IF DTC P0992 IS CURRENT

NOTE: The vehicle must be driven to set this DTC. The transmission must at operating temperature with the
Engine RPM above 1000 RPM.
This DTC is an indication of both the 2/4 and the O/D Hydraulic Pressure Switch DTCs present.

Perform the diagnostic procedures for both P0845 and P0870.

With the scan tool, check the EATX DTC EVENT DATA to help identify the conditions in which the DTC was set.

View repair.

Repair

Refer to the Transmission category and perform the diagnostic procedures for P0845 and P0870.

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AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS

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P1684-BATTERY WAS DISCONNECTED

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
After a reset (ignition key turned to the RUN position).

•

Set Condition:
The checksum of the battery backed RAM does not match the stored checksum. Set Time: Less than 7 msec.

Possible Causes

BATTERY WAS DISCONNECTED

PCM WAS REPLACED OR DISCONNECTED

QUICK LEARN WAS PERFORMED

(A209) FUSED B+ CIRCUIT TO PCM OPEN

(Z904) GROUND CIRCUITS OPEN

Always perform the 42RLE Pre-Diagnostic Troubleshooting Procedure before proceeding. (Refer to 21 -
TRANSMISSION/TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)

Theory of Operation

Note: This is not a fault code. It exists to provide reference information only. A battery backed RAM is used to
maintain some learned values. When the battery is disconnected, this memory is lost. When the battery is recon-
nected, the loss of learned values will be detected by the controller. The code will be set and the learned values will
be initialized to known constants and the learning process will continue. Setting the code has no effect except for
re-initialization of learned values.

Diagnostic Test

1.

BATTERY WAS DISCONNECTED

Has the battery been disconnected, lost its charge, or been replaced recently?

Yes

>> Disconnecting or replacing the battery will set this DTC. Erase the DTC.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)

No

>> Go To 2

2.

WAS QUICK LEARN PERFORMED

Has a Quick Learn procedure been performed?

Yes

>> Performing Quick Learn will set this DTC. Erase the DTC.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)

No

>> Go To 3

3.

PCM REPLACED OR DISCONNECTED

Has the PCM been replaced or disconnected?

Yes

>> Replacing or disconnecting the PCM will set this DTC. Erase the DTC.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)

No

>> Go To 4

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AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS

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4.

(A209) FUSED B+ CIRCUIT

Turn the ignition off to the lock position.

Disconnect the PCM C1 harness 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.
Using a 12-volt test light connected to ground, check the (A209) Fused
B+ circuit.

NOTE: The test light must illuminate brightly. Compare the bright-
ness to that of a direct connection to the battery.

Does the test light illuminate brightly?

Yes

>> Go To 5

No

>> Repair the Fused B+ circuit for an open. If the fuse is open

make sure to check for a short to ground.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 42RLE - STANDARD PROCEDURE)

5.

(Z904) GROUND CIRCUITS

Turn the ignition off to the lock position.

Disconnect the PCM C4 harness connector.

NOTE: Check connectors - Clean/repair as necessary.
Using a 12-volt test light connected to 12-volts, check the (Z904)
Ground circuits in the appropriate terminal of special tool #8815.

NOTE: The test light must illuminate brightly. Compare the bright-
ness to that of a direct connection to the battery.

Does the test light illuminate brightly for all the ground cir-
cuits?

Yes

>> Go To 6

No

>> Repair the Ground circuits for an open.

Perform 42RLE TRANSMISSION VERIFICATION TEST -
VER 1. (Refer to 21 - TRANSMISSION/TRANSAXLE/AU-
TOMATIC - 42RLE - STANDARD PROCEDURE)

6.

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.

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