POWER DISTRIBUTION
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POWER DISTRIBUTION
The power distribution system for this vehicle consists of the Totally Integrated Power Module (TIPM) and related fuses, relays and wiring connectors.
POWER DISTRIBUTION
The power distribution system for this vehicle is designed to provide safe, reliable, centralized, and convenient to access, distribution of the electrical current required to operate all of the many standard and optional factory- installed electrical and electronic powertrain, chassis, safety, comfort and convenience systems. At the same time, these systems were designed to provide centralized locations for conducting diagnosis of faulty circuits, and for sourcing the additional current requirements of many aftermarket vehicle accessory and convenience items.
These power distribution systems also incorporate various types of circuit control and protection features, including fuses and relays.
CIGAR LIGHTER/POWER OUTLET
MODULE-INVERTER
Description
The inverter module is located under the right rear seat cushion. The A/C outlet is mounted in the rear of the center floor console. The inverter module provides A/C power for user accessories when the 115 Volt AC outlet switch (4) in the instrument panel center stack (1) is in the "ON" position. The inverter converts the 12 Volt DC from the vehicle battery system to a 115 Volt AC output. The outlet switch is part of the accessory switch bank assembly and is not available for service as an individual part. If the switch is damaged or inoperative the complete accessory switch bank assembly must be replaced. Refer to REMOVAL for the appropriate procedure.
Operation
The 115 volt AC power outlet switch receives 12 volts from the Totally Integrated Power Module (TIPM) and passes it as an enable signal to the inverter module. The inverter module also receives 12 volts via the TIPM and inverts this to a 115 volt AC output. The enable signal received from the power outlet switch enables the
inverter to convert the received voltage and pass it to the power outlet to power external devices.
Diagnosis & testing
For complete circuit diagrams, refer to the SYSTEM WIRING DIAGRAMS article.
WARNING: Disable the airbag system before attempting any steering wheel, steering column, seat belt tensioner, side airbag, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to take the proper precautions could result in accidental airbag deployment and possible personal injury.
115 VOLT POWER OUTLET DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
NO POWER AT THE 115 1. Fuse inoperative. 1. Check Totally Integrated Power Module VOLT POWER OUTLET (TIPM) fuse number 37. Replace fuse, if
required.
2. Power outlet connector 2. Check for loose or corroded power outlet
damaged. connector. Repair, if required.3. Inverter module connector 3. Check for loose or corroded inverter
damaged. module connector. Repair, if required.
4. Wiring damaged. 4. Check for shorted or open wires. Repairwiring, if required.
5. Inverter module ground 5. Check for continuity between the inverter
damaged. module and a known good ground. Thereshould be continuity. Repair ground, if required. 6. Power outlet inoperative. 6. Replace the power outlet. 7. Inverter module 7. Replace the inverter module. inoperative. 8. Power outlet switch 6. Replace the accessory switch bank. inoperative.
Removal
1
Disconnect and isolate the battery negative cable.
2
Remove the rear seat assembly. Refer to REMOVAL .
3
Remove the fasteners (1) from the mounting brackets of the inverter module (2).
4
Remove the inverter module.
Installation
1
Position the inverter module (2) on the mounting bracket assembly.
2
Install the fasteners (1).
3
Install the rear seat assembly. Refer to INSTALLATION .
4
Connect the battery negative cable.
MODULE-TOTALLY INTEGRATED POWER
