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Home >> Chrysler >> 2004 >> Pacifica AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Body Diagnostic Procedures - Communication, Door Ajar, Electrically Heated Systems, Exterior Lighting >> Electrically Heated Systems >> Symptom: DRIVER THERMISTOR OUT OF RANGE HIGH - MHSAPM >> Diagnostic Procedure

Diagnostic Procedure

DRIVER THERMISTOR OUT OF RANGE HIGH - MHSAPM - DIAGNOSTIC PROCEDURE

TEST ACTION APPLICABILITY
1 With the DRBIII®, erase the DTC from Memory/Heated Seat Adjustable Pedal Module.
Turn the ignition switch to the Off position then start the engine and let run for one minute.
Operate the heated seat system.
With the DRBIII® check for the same DTC to reset in the MHSAPM.
Did the same DTC reset?
  1. Yes: Go To 2
  2. No: Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition.

    Perform BODY VERIFICATION TEST VER-1 .

 All
2 Disconnect the Driver Heated Seat Cushion 4-way connector.
Turn ignition on.
Turn the Driver Heated Seat Switch on.
Measure the voltage between Seat Temperature Sensor 5 Volt Supply circuit and ground.
Is the voltage above 5.5 volts?
  1. Yes: Go To 3
  2. No: Go To 4
 All
3 Disconnect the Driver Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat Adjustable Pedal Module C2 connector. Turn ignition on.
Measure the voltage of the Driver Seat Temperature Sensor 5 Volt Supply circuit in the cushion side connector to ground.
Is there ANY voltage on the Driver Seat Temperature Sensor 5 Volt Supply circuit?
  1. Yes: Repair the Driver Seat Temperature Sensor 5 Volt Supply ckt for a short to voltage.

    Perform BODY VERIFICATION TEST VER-1 .

  2. No: Replace the Memory Heated Seat Adjustable Pedal Module

    Perform BODY VERIFICATION TEST VER-1 .

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4 Disconnect the Driver Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat Adjustable Pedal Module C2 connector.
Turn ignition on.
Measure the voltage between Driver Seat Temperature Sensor Input circuit and ground.
Is there ANY voltage on the Driver Seat Temperature Sensor Input circuit?
  1. Yes: Repair the Driver Seat Temperature Sensor Input circuit for a short to voltage.

    Perform BODY VERIFICATION TEST VER-1 .

  2. No: Replace the Driver Seat Cushion/Element as necessary.

    Perform BODY VERIFICATION TEST VER-1 .

 All
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