Chrysler 300M 2002 Service Manual page 2813

GENERAL INFORMATION
– Sticky accumulator seals (intermittent)
> Failed or intermittent slipping UD clutch - may
also set code P-0731(51) and/or P-0733(53)
– UD seal leakage (intermittent)
– Worn input clutch hub bushing (hard code at
heavy throttle)
– Sticky UD accumulator seals (intermittent)
– Worn reaction shaft support seal rings (hard
code at heavy throttle)
– Solenoid pack (UD pressure in 4th gear)
Code P0733(53) - Excludes geartrain failures
which should be obvious upon disassembly
> If code P0944(35) is also set, follow diagnostic
procedure for code P0944(35) first
> Failed or slipping OD clutch - may also set code
P0734(54)
– OD and Reverse inner and outer lip seal
leakage (usually hard code)
– Sticky OD accumulator seals (intermittent)
– Worn reaction shaft support seal rings (hard
code at heavy throttle)
– Broken OD/UD tapered snap ring - (hard code
at heavy throttle)
> Failed or intermittent slipping UD clutch - may
also set code P0731(51) and/or P0732(52)
– UD seal leakage (intermittent)
– Worn input clutch hub bushing (hard code at
heavy throttle)
– Sticky UD accumulator seals (intermittent)
– Worn reaction shaft support seal rings (hard
code at heavy throttle)
– Solenoid pack (UD pressure in 4th gear)
Code P0734(54) - Excludes geartrain failures
which should be obvious upon disassembly
> If code P0944(35) is also set, follow diagnostic
procedure for code P0944(35) first
> Failed or slipping OD clutch - may also set code
P0733(53)
– OD and Reverse inner and outer lip seal
leakage (usually hard code)
– Sticky OD accumulator seals (intermittent)
– Worn reaction shaft support seal rings (hard
code at heavy throttle)
– Broken OD/UD tapered snap ring - (hard code
at heavy throttle)
> Failed or slipping 2/4 clutch - may also set code
P0732(52)
– 2/4 seal leakage (intermittent)
– Sticky accumulator seals (intermittent)
Codes P0715(56) and P0720(57)
> Failed input or output speed sensor (intermit-
tent or hard code)
> Shorted or open wiring between PCM and speed
sensor(s) (intermittent)
> PCM connector problems and/or Speed Sensor
connector
Code P1794(58)
> Open or shorted speed sensor ground (speed
sensor ground is different from chassis ground)
> Open or shorted Temperature Sensor wiring to
TRS
> TRS - Will also set code P1799(74)
> PCM
Name of code: P0951(70) - AutoStick Sensor Cir-
cuit (If equipped)
When monitored: Whenever the engine is run-
ning.
Set condition:
1) The transmission shift lever is not in AutoStick
and either the upshift or downshift switches are
closed.
2) Upshift and downshift switches are closed at
the same time.
Theory of operation: In the AutoStick Mode
(manual shift mode), upshifts and downshifts are
actuated manually. Shift requests are detected by
monitoring the upshift and downshift switches.
The PCM monitors the above set conditions. A set
condition will be tolerated for up to 15 seconds
before setting a code.
Transmission Effects: The OD position shift
schedule is substituted while operating in the
AutoStick gear selector position. No Limp-in mode
occurs.
Possible causes:
> Wiring or connector problems
> AutoStick switch failure
> PCM
Name of code: P1797(71) - Manual Shift Overheat
When monitored: Whenever the engine is run-
ning.
Set condition:
1) If the engine temperature exceeds 124°C
(225°F) while operating in AutoStick mode.
2) If the transmission temperature exceeds 135°C
(275°F) while in AutoStick mode
Theory of operation: Transmission and engine
temperatures are monitored during vehicle opera-
tion. If conditions occur causing the engine or
transmission to overheat, the AutoStick mode will
be canceled, and a code will be set.
Transmission Effects: The 3 position shift sched-
ule that is used in non-AutoStick applications is
substituted while operating in the AutoStick gear
selector position. No Limp-in mode occurs.
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