Pacifica V6-3.8L VIN L (2005)
When the IPM receives a message for front fog lamps on, the IPM will supply power to pin 17 of the C5 connector for the right lamp and pin 2 of the C5
connector for the left lamp.
License plate lamp
When the IPM senses that the park lamps switch is closed, the IPM will supply power through a high side driver of the IPM.
Transmission Control
The electronic automatic 4 speed transmission control (which is internal to the PCM) is powered when the ignition switch is in the RUN or START
position. This circuit is electronically controlled and continuously monitored for malfunctions.
Autostick power
The autostick is powered when the ignition switch is in the UNLOCK, RUN or START position. This circuit is electronically controlled and
continuously monitored for malfunctions.
Brake transmission shift interlock (BTSI) system
The brake shift interlock solenoid receives power from a high side driver inside the IPM. The high side driver control is hardwired to pin 19 of the IPM
C9 connector. The IPM energizes the BTSI when in Accessory, Start or Run positions thus preventing the shift lever from being moved from the Park
position. The IPM will de-energize the BTSI solenoid when the brake pedal is applied or the shift lever is in any other position than Park.
Front washer motor
The front washer switch is a direct input to the BCM. The BCM sends a PCI Bus message to the IPM informing it of a request to wash. The front washer
motor is then powered through high side control inside the IPM. This circuit is electronically controlled and continuously monitored for malfunctions. In
addition, the IPM electronically protects the washer motor from system voltages higher than 16 volts by automatically switching off the high side
circuit.
Rear washer motor
The rear washer switch is a direct input to the BCM. The BCM sends a PCI Bus message to the IPM informing it of a request to wash. The rear washer
motor is then powered through low side control inside the IPM. This circuit is electronically controlled and continuously monitored for malfunctions. In
addition, the FCM electronically protects the washer motor from system voltages higher than 16 volts by automatically switching off the high side
circuit.
RELAY CONTROLS
Front wiper on relay
The front wiper switch is a direct input to the BCM. The BCM sends a PCI Bus message to the IPM informing it to turn on the front wiper on relay. This
relay is electronically controlled and continuously monitored for malfunctions. The front wiper on relay is turned on internally by the IPM as soon as the
IPM receives the message from the BCM.
Front wiper high/low relay
The front wiper switch is a direct input to the BCM. The BCM sends a PCI Bus message to the IPM informing it to turn on the front wiper high/ low
relay. The relay switches power between the low speed and high speed windings of the wiper motor. The front wiper high/low relay is turned on
internally by the IPM as soon as the IPM receives the message from the BCM. This circuit is electronically controlled and the coil side of the relay is
monitored for malfunctions.
Accessory relay
The accessory relay works in conjunction with the IPM's power accessory delay feature to control the operation of the radio, amplifier, EVIC, power
windows, washer motors, wiper motors, power sunroof, and power outlet. The accessory relay is turned on through low side control internal to the IPM
as soon as the IPM receives information from the BCM that the ignition is in the ACCY or RUN position. This circuit is electronically controlled and
continuously monitored for malfunctions. Depending on the ignition switch position, the accessory relay will remain on or will time-out and turn off. The
accessory relay remains on in the RUN and ACCY positions of the ignition switch. In the OFF position, the relay will remain energized for 45 seconds
then turn off. During this time-out period, if the driver or passenger doors are opened, the relay will turn off immediately. While the ignition switch is in
the START position, the relay will also drop-out, then resume operation. Accessory relay operation is most noticeable by observing the operation of the
radio.
Horn relay
The horn relay operates through a direct wire input to the IPM from the horn switch or a PCI Bus message from the BCM. The relay responds to the horn