Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHRYSLER1999300M V6-3.5L VIN GREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONDIAGNOSTIC TROUBLE CODE DESCRIPTIONSDETAILED DESCRIPTIONSMEMORY SYSTEMRIGHT HEATED SEAT HEAT SWITCH STUCK IN HIGH STATE
1999 Chrysler 300M V6-3.5L VIN G
Right Heated Seat Heat Switch Stuck In High State
1999 Chrysler 300M V6-3.5L VIN GSECTION Right Heated Seat Heat Switch Stuck In High State
NAME OF CODE
Right Heated Seat Switch Stuck in High State
WHEN MONITORED
Ignition on.
SET CONDITION
Switch stuck active for 30 seconds.
THEORY OF OPERATION
If the right heated seat switch is active for 30 seconds the MHSMM will ignore the input until its state has changed. Once the stuck condition is removed for 3 seconds the passenger heated seat switch will return to normal operation. The code will remain in the module for 20 ignition cycles.
PROBABLE CAUSE
- Switch failure (value)
- Right seat heater switch MUX ckt shorted to battery
- MHSMM failure
Right Heated Seat Switch Stuck in High State
WHEN MONITORED
Ignition on.
SET CONDITION
Switch stuck active for 30 seconds.
THEORY OF OPERATION
If the right heated seat switch is active for 30 seconds the MHSMM will ignore the input until its state has changed. Once the stuck condition is removed for 3 seconds the passenger heated seat switch will return to normal operation. The code will remain in the module for 20 ignition cycles.
PROBABLE CAUSE
- Switch failure (value)
- Right seat heater switch MUX ckt shorted to battery
- MHSMM failure
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.