Voltage regulator location

Good afternoon,

Are you sure you have a voltage regulator? Can you post a picture for me to see?

2016 does not offer a separate regulator.

Can you verify the car information?

Roy

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2016 Chrysler Truck Town & Country V6-3.6L
Charging System - Operation
Vehicle Starting and Charging Charging System Description and Operation Components Charging System - Operation
CHARGING SYSTEM - OPERATION
OPERATION

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CHARGING SYSTEM OPERATION

The charging system is turned on and off with the Powertrain Control Module (PCM) (2) and ignition switch with engine running. The field circuit will not be energized until engine is running and ignition switch is on. This voltage is connected through the PCM (2) and supplied to the generator field circuit (1) at the back of the generator (6). The generator (6) is internally grounded through the generator case ground (8). The generator (6) regulates the field using Pin 1 of the field connector (High side driver).

The generator (6) is driven by the engine through a serpentine belt and pulley or decoupler pulley arrangement.

The PCM (2) receives a voltage input from the generator (6) via the B+ sense circuit (10) and also a battery sense input (3) from the Gateway (Totally Integrated Power Module, Integrated Power Module) (4), it then compares the voltages to the desired voltage programed in the Electronic Voltage Regulator (EVR) software and if there is a difference it sends a signal to the generator EVR circuit to increase or decrease output. It uses Pulse Width Modulation (PWM) to send signals to the generator circuitry to control the amount of output from the generator. The amount of DC current produced by the generator is controlled by the EVR circuitry contained within the PCM (2).

All vehicles are equipped with On-Board Diagnostics (OBD). All OBD-sensed systems, including EVR circuitry, are monitored by the PCM. Each monitored circuit is assigned a Diagnostic Trouble Code (DTC). The PCM will store a DTC in electronic memory for certain failures it detects.

The Check Gauges Lamp (if equipped) monitors: charging system voltage, engine coolant temperature and engine oil pressure. If an extreme condition is indicated, the lamp will be illuminated. This is done as reminder to check the three gauges. The lamp is located on the instrument panel. Refer to the Instrument Cluster section for additional information.

Voltage is monitored at B+ sense circuit (10) to insure the cable is connected. If the B+ circuit (generator output) (9) cable is loose anywhere in the circuit the B+ sense circuit (10) will show high voltage. This condition causes the PCM (2) to shut down the generator field circuit (1). Because of this feature, pin 2 of the field connector is internally connected to the B+ circuit (9).

The diesel generator is internally regulated. The generator and PCM communicate for diagnostics, etc. If the generator regulator becomes disconnected from the PCM it will operate, but in a default mode.

There is no tricking. It is all about voltage. If the battery has low voltage, it will cause all kinds of issues.

Give me a part number and where you got it.

Are you sure it is a 2016?

Roy

It does not have an external regulator at all. It is all internal between the alternator and the PCM.

You need a scan tool to monitor the charging system to see where the failure is located. It could be either the alternator itself, the PCM or the TIPM. All of these are the controller for the charging system.

A parts store cannot be trusted to do this check. They are not technicians, just parts salesman.

Roy

You are welcome.

Keep us updated.

Roy