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Home >> Chrysler >> 2005 >> Pacifica Limited >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Diagnostic Procedures - Introduction >> System Description And Functional Operation >> Integrated Power Module (IPM) >> Electrical Inputs
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Electrical Inputs

Module battery supply -  Battery input is on the nut and bolt connector of the IPM. This supplies battery voltage for all IPM operations.

Power ground  - Ground source on pin 14 of connector C5 for all IPM operations.

Ignition switch RUN or START position status  - 12 volt input on pin 13 of connector C9. Allows the IPM to determine the ignition switch status for related IPM operations.

Ignition switch START only status  - 12 volt input on pin 4 of connector C4. And allows the IPM to discriminate between RUN/START input and START for related IPM operations.

PCI Bus  - Approximately 7.5 volt input on pin 11of connector C4 and allows the IPM to communicate with other modules on the vehicle bus.

Brake sense status  - The stop light switch sense tells the IPM to de-energize the BTSI when the ignition is in Run, Start or Accessory positions for brake shift interlock function.

Horn Switch  - Horn signal input on pin 2 of connector C4. The signal tells the IPM to provide power to the horn.

Wiper park switch  - Ground input on pin 3 of connector C4. Used to determine park placement of wipers. Also used as feedback to the IPM to determine correct operating mode of wipers.

Washer fluid level switch  - Ground input to pull-up on pin 3 of connector C5. Ground is switched into the circuit when washer bottle fluid level is low.

Brake fluid level switch  - Ground input to pull-up on pin 8 of connector C8. Ground is switched into the circuit when brake fluid level is low.

Battery IOD  - The IPM enters a low power consumption mode when the ignition is turned OFF. This low current draw battery supply keeps the microprocessor functioning in the low power mode. The IOD fuse can be inserted two ways. The IGN designation on the face of the IPM is the SHIPPING position. The B+ designation on the face of the IPM is the NORMAL RUN position. If the ignition switch is off and the fuse is in the SHIPPING position, there will be no RKE or door lock functions.

Flash programming voltage  - When a DRBIII® is connected and the proper flash reprogramming sequence is selected, the 20 volt signal will be applied through pin 5 of connector C9.

CAUTION: The IPM will learn several Learned Features when it is connected to a vehicle, therefore it is not recommended that IPM's be swapped from one vehicle to another or false DTC's could be stored in the module and could not be erased.
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