Passenger Thermistor Out Of Range High
WARNING: This page is about a different car, the 2002 Dodge Intrepid, 2002 Chrysler Intrepid, 2002 Chrysler Concorde, and 2002 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
After making any repairs, perform MEMORY HEATED SYSTEM VERIFICATION TEST
under VERIFICATION TESTS.
Monitored & Set Condition
- When Monitored: Ignition on, during the heated seat operation.
- Set Condition: This code is immediately set when the Heated Seat Module senses a greater value than the value stored in EEPROM.
Possible Causes:
- Passenger Seat Temp Sensor Input CKT Short To Voltage
- Passenger Seat Temperature 5-Volt Supply Wire Short To Voltage
- Passenger Seat Temperature Sensor
- Memory Heated Seat/Mirror Module
Testing
- Turn ignition on. Raise passenger seat to highest position to gain access to seat components and connectors. Turn ignition off. Disconnect passenger heated seat cushion 4-pin connector. Turn ignition on. Turn passenger heated seat switch on. Measure voltage between ground and passenger heated seat cushion 4-pin connector terminal "D", passenger seat temperature 5-volt supply circuit (Black/Light Green wire). See Figure . If voltage is more than 5.5 volts, leave passenger heated seat cushion 4-pin connector disconnected and go to next step. If voltage is 5.5 volts or less, leave passenger heated seat cushion 4-pin connector disconnected and go to step 3 .
- Turn ignition off. Raise driver seat to highest position to gain access to seat components and connectors. Disconnect Memory Heated Seat/Mirror Module (MHSMM) connector C2. Turn ignition on. Measure voltage between ground and passenger heated seat cushion 4-pin connector terminal "D", passenger seat temperature 5-volt supply circuit (Black/Light Green wire). If any voltage exists, repair short to voltage in Black/Light Green wire. If no voltage exists, replace MHSMM. See MEMORY HEATED SEAT/MIRROR MODULE .
- Turn ignition off. Raise driver seat to highest position to gain access to seat components and connectors. Disconnect Memory Heated Seat/Mirror Module (MHSMM) connector C1. Turn ignition on. Measure voltage between ground and passenger heated seat cushion 4-pin connector terminal "C", passenger seat temperature sensor input circuit (Tan/Dark Blue wire). If any voltage exists, repair short to voltage in Tan/Dark Blue wire. If no voltage exists, replace passenger heated seat cushion. See POWER SEATS article.